EP4244301A1 - Film antiadhésif ayant un revêtement antiadhésif mince - Google Patents

Film antiadhésif ayant un revêtement antiadhésif mince

Info

Publication number
EP4244301A1
EP4244301A1 EP21810966.8A EP21810966A EP4244301A1 EP 4244301 A1 EP4244301 A1 EP 4244301A1 EP 21810966 A EP21810966 A EP 21810966A EP 4244301 A1 EP4244301 A1 EP 4244301A1
Authority
EP
European Patent Office
Prior art keywords
release
weight
range
surface side
carrier film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21810966.8A
Other languages
German (de)
English (en)
Inventor
Michael Schuhmann
Sahin SAYGILI
Werner Schmidt
Harald GERLACHER
Josef Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Loparex Germany GmbH and Co KG
Original Assignee
Loparex Germany GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102020214073.1A external-priority patent/DE102020214073A1/de
Application filed by Loparex Germany GmbH and Co KG filed Critical Loparex Germany GmbH and Co KG
Publication of EP4244301A1 publication Critical patent/EP4244301A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C09J7/405—Adhesives in the form of films or foils characterised by release liners characterised by the substrate of the release liner
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00—Presence of polyolefin
    • C09J2423/006—Presence of polyolefin in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • C09J2423/046—Presence of homo or copolymers of ethene in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2481/00—Presence of sulfur containing polymers
    • C09J2481/005—Presence of sulfur containing polymers in the release coating

Definitions

  • German patent application no. 10 2020 214073.1 of November 10, 2020 and German patent application no. 10 2021 119043.6 of July 22, 2021 are claimed.
  • the invention relates to a method for producing a release film by coating a carrier film with a release coating, the method comprising the steps of: (a) providing the carrier film, the carrier film having a first surface side and a second surface side; wherein the carrier film is preferably structured; (b) providing a coating composition which comprises a solvent component, preferably comprising ethyl acetate, propyl acetate, butyl acetate and/or n-propanol, and a UV-curable silicone system; (c) coating at least part of the first surface side of the carrier film provided in step (a) with the coating composition provided in step (b); (d) evaporating at least a portion of the solvent component; and (e) irradiating at least part of the first surface side of the carrier film coated in step (c) with UV radiation to cure the silicone system.
  • a coating composition which comprises a solvent component, preferably comprising ethyl acetate, propyl acetate, butyl acetate
  • Release films which are based on carrier films with a release coating are known in numerous forms from the prior art.
  • the carrier foils can be based on polymers such as polyolefins, nonwovens and/or paper.
  • Suitable coating compositions are used for this purpose, which are mostly solvent-free and contain reactive components which are then activated and cured under the action of radiation, in particular UV radiation.
  • Such coating compositions which are suitable for use in the flexographic printing process, are commercially available.
  • WO 00/44844 A1 discloses release films and processes for their production.
  • the release liners contain no more than about 1.5 micrograms/square centimeter of unreacted silicone materials (extractables).
  • the release liners are made from radiation curable silicone release materials using a solvent coating.
  • US 2002 009486 A1 relates to a therapeutic agent delivery device which can be applied to a host to therapeutically deliver a therapeutically active agent to the host, the device including a reflective optical film.
  • US 2002 176973 A1 discloses laminates including cellulosic material which exhibit dimensional stability when exposed to changes in ambient humidity.
  • the laminates comprise at least two layers consisting of a cellulosic material sandwiched between an inner polymeric layer.
  • the polymer layer is thicker than either of the cellulosic layers.
  • US 2005 214494 A1 relates to a production substrate from sheet-like products.
  • the substrate includes a paper layer having a first surface and a second surface, a barrier layer formed on the first surface of the paper layer, and a release layer formed on the barrier layer.
  • US 2008 145675 A1 discloses an antistatic surface treatment for plastic films or similar materials in which an additive which produces the antistatic properties is contained in the surface.
  • US 2015 284590 A1 relates to a curable organopolysiloxane composition
  • US 2018 154575 A1 relates to methods, systems and devices relating to the application of a coating to a release liner substrate, comprising directing the coating material onto a release liner substrate material via at least one material dispensing head and release films, which are produced according to the disclosed methods, systems and devices were manufactured.
  • US 2018 311889 A1 discloses a method for treating a substrate with millimeter and/or micrometer and/or nanometer structures.
  • the method includes application at least one protective material on the structures, wherein the at least one protective material can be dissolved in a solvent and the structures are produced by an embossing process.
  • JP 2019 123853 A relates to a double-sided adhesive sheet in which one surface of a double-sided adhesive sheet has strong adhesion to an adherend and the other surface has excellent reworkability, the double-sided adhesive sheet containing no base film.
  • the carrier films were already used in the structured state, for example embossed carrier films, and these structured carrier films were coated with conventional coating compositions in the flexographic printing process, the wetting of the coating composition on the structured or uneven carrier films would sometimes be insufficient and three-dimensional topography of the surface form uneven layer thicknesses of the release coating and possibly defects.
  • a certain unevenness is already present in pure polyolefin films and increases with additives and an additional embossed structure: polyolefin films ⁇ additized polyolefin films ⁇ embossed polyolefin films ⁇ embossed, additized polyolefin films.
  • a disadvantage of conventional methods for producing release films is generally the comparatively high consumption of the coating compositions, which are comparatively expensive and make these methods uneconomical.
  • the layer thickness of the release coating in the case of the conventionally produced release films is greater, at least in some areas, than it would have to be in order to ensure an adequate release effect. It would therefore be desirable to apply a release coating that is as uniform as possible with a small layer thickness (i.e. low basis weight) on the carrier foils, e.g. in the flexographic printing process, whereby structured release foils can also be produced without being confronted with the disadvantages of the prior art explained above.
  • release films must have additional properties which cannot always be guaranteed in a satisfactory manner using the conventional methods for their production. If the separating films are to be used for hygiene articles, odor neutrality and compliance with other regulations are essential.
  • the object of the invention is to provide advantageous release films and an advantageous method for producing such release films.
  • the separating films should enable a good separating effect with a comparatively low material requirement.
  • the release coating should satisfactorily cover the surface of the backing to provide the desired release properties without requiring excessive material usage.
  • release films with a comparatively small total layer thickness can be provided, which have a correspondingly comparatively thin release coating.
  • the release films have a stable and even release coating.
  • less material is required for the films themselves and for the release coating compared to thicker release films.
  • the recyclability of the release films is also improved.
  • carrier films based on polyolefin are particularly suitable for providing correspondingly thin release films. Compared to other carrier films, in particular those based on paper, carrier films based on polyolefin have a high tear resistance, good temperature resistance and low water absorption with high chemical stability. It is also possible to coat such carrier films with a comparatively thin and stable release coating.
  • the solvent component can be easily evaporated, recovered and recycled, the production cost does not increase significantly; they are ultimately significantly reduced due to the lower consumption of coating composition.
  • the cost savings for the reduced need for coating composition significantly offsets the slightly higher expense for solvents, evaporation and recovery.
  • the wetting of the formulation of the coating composition on the surface of the carrier film to be provided with release properties i.e. the surface of the carrier film to which the release coating is to be applied, is improved and stabilized, with uneven or even structured carrier foils can be coated without the disadvantages known from the prior art, e.g. defects, occurring.
  • coating compositions based on UV-curable silicone systems can be processed on conventional systems for equipping carrier films with release properties, even with the addition of solvent components.
  • the additional effort with regard to safety precautions such as explosion protection and workplace concentration is low because conventional systems already guarantee a maximum of safety in this respect.
  • esters are particularly suitable for the process according to the invention, since they combine an optimum of the desired properties in many respects, in particular:
  • Ethyl acetate ethyl acetate
  • propyl acetate propyl acetate
  • butyl acetate butyl acetate
  • propyl acetate and butyl acetate have the advantage of a higher boiling point compared to ethyl acetate, which counteracts (premature) increase in viscosity from (premature) evaporation; such an increase in viscosity would be accompanied by poorer and less stable wetting.
  • more stable mixtures with the other components of the coating composition in particular with the UV-curable silicone systems, can be produced with propyl acetate and butyl acetate, especially when the system is not equipped with an online measuring mixing system for the solvent component. Despite the higher boiling point, these solvents can be easily evaporated, recovered (condensed) and returned to the process (recycled) at the end of the production of the release films with little energy input.
  • Propanol in particular n-propanol, has also proven to be particularly suitable according to the invention.
  • these solvents bring about improved adhesion of the coating composition and the resulting release coating on the carrier films for conventional UV-curable silicone systems, particularly if the surface to be coated is based on polyolefins .
  • the separating effect of the separating films produced using these solvents is also improved compared to separating films of identical structure and identical composition, in the manufacture of which other solvents were used. In the small residual amounts, in which these solvents remain at most in the release film, these solvents are also odorless.
  • these solvents are particularly advantageous for the coating of release films according to the invention which are based on polyolefin.
  • Polyolefins in particular polyethylene and polypropylene, have different levels of resistance to various solvents, with resistance to esters such as ethyl acetate, propyl acetate and butyl acetate being comparatively high.
  • a first aspect of the invention relates to a release film comprising
  • polyolefin is selected from the group consisting of olefin homo- or copolymers of ⁇ , ⁇ -unsaturated olefins having 2 to 10 carbon atoms;
  • a release coating having a basis weight of at most 0.7 g/m 2 ; wherein the carrier film has a first surface side and a second surface side; wherein the first surface side of the carrier film is at least partially coated with the release coating; and wherein the release film has a total layer thickness of at most 25 ⁇ m.
  • the release coating of the release film according to the invention has a weight per unit area of at most 0.5 g/m 2 ; preferably at most 0.45 g/m 2 ; wherein the release coating is preferably based on at least one cured polysiloxane; preferably selected from the group consisting of polydialkylsiloxanes, preferably polydimethylsiloxanes; and polyalkylarylsiloxanes, preferably polymethylphenylsiloxanes; preferably chemically crosslinked acrylate-functionalized polysiloxanes; more preferably chemically crosslinked acrylate-functionalized polydialkylsiloxanes, preferably chemically crosslinked acrylate-functionalized polydimethylsiloxanes; or chemically crosslinked acrylate-functionalized polyalkylarylsiloxanes, preferably chemically crosslinked acrylate-functionalized polymethylphenylsiloxanes; wherein the release coating preferably comprises at least one other cured polysiloxane; preferably
  • polyolefin is the main component
  • Release films are known to a person skilled in the art. Release films for the purposes of the invention are preferably plastic-based films, which are used to prevent a sticky surface from adhering prematurely. They are coated on one or both sides with a release agent that releases sticky materials such as glue or putty.
  • the release films according to the invention are preferably used for packaging and as a component of hygiene products, as release and surface films for applications in the construction industry and as a release film for technical adhesive tapes and special labels.
  • the carrier film according to the invention preferably comprises polyester, polyamide or polyolefin such as polyethylene or polypropylene, optionally with different surface bands.
  • the carrier film can be stretched monoaxially or biaxially.
  • the carrier film according to the invention can serve various functions, which are preferably selected from the group consisting of oxygen barrier, aroma barrier, light protection, rigidity, puncture resistance, print carrier, etc.
  • the carrier film according to the invention can comprise a sealing layer.
  • a sealing layer typically serves to seal the carrier film, which can be sealed to itself or to another film.
  • the resulting sealing seam should preferably quickly remain mechanically stable and thus sealed after welding.
  • the sealing layer can thus preferably be used to control whether a packaging should later be openable or firmly sealed.
  • the release film according to the invention comprises a release coating.
  • the release coating preferably serves to separate the release film from a sticky material, the carrier film being the carrier for the release coating.
  • Frequently used release agents for release coatings can be crosslinkable silicone, oils, fats, certain polyolefins or fluorocarbons.
  • the carrier film according to the invention comprises at least one layer (b) and can therefore be a single-layer carrier film in a preferred embodiment.
  • layer (b) preferably forms both the first and the second surface side, the first surface side, ie layer (b), preferably being at least partially coated with the release coating.
  • the carrier film consists of a first sealing layer (a) and a layer (b) and is therefore a two-layer carrier film.
  • the first sealing layer (a) preferably forms the first surface side and layer (b) preferably the second surface side, the first surface side, ie the first sealing layer (a), preferably being at least partially coated with the release coating.
  • the carrier film consists of a first sealing layer (a), a layer (b) and a second sealing layer (c) and is therefore a three-layer carrier film.
  • the first sealing layer (a) preferably forms the first surface side and the second sealing layer (c) preferably forms the second surface side, the first surface side, i.e. the first sealing layer (a), preferably being at least partially coated with the release coating.
  • the carrier film consists of three identical first sealing layers (a), three identical layers (b) and three identical second sealing layers (c) and is therefore a nine-layer carrier film.
  • the first sealing layer (a) preferably forms the first surface side and the second sealing layer (c) preferably forms the second surface side, the first surface side, i.e. the first sealing layer (a), preferably being at least partially coated with the release coating.
  • the polyolefin on which layer (b) is based is preferably selected from the group consisting of polyethylene, polypropylene, polybutylene, polyisobutylene, polyhexene, polyoctene, copolymers and/or mixtures of at least two of the polymers mentioned.
  • the olefin homo- or copolymer of layer (b) is preferably an ethylene homopolymer or an ethylene copolymer.
  • the ethylene homo- or copolymer of layer (b) is selected from the group consisting of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), medium density polyethylene (MDPE), and high density polyethylene (HDPE).
  • LDPE low density polyethylene
  • LLDPE linear low density polyethylene
  • MDPE medium density polyethylene
  • HDPE high density polyethylene
  • ethylene homo- or copolymer is understood as meaning ethylene homopolymers which are based exclusively on ethylene, and ethylene copolymers which, in addition to ethylene, are based on at least one other ⁇ , ⁇ -unsaturated olefin having 3 to 10 carbon atoms .
  • Preferred ethylene homo- or copolymers are polyethylene with highly branched polymer chains and a low density in the range of 0.915 to 0.940 g/cm 3 (LDPE); polyethylene with a average density ranging from 0.926 to 0.940 g/cm 3 (MDPE); polyethylene with weakly branched polymer chains and a high density ranging from 0.945 to 0.97 g/cm 3 (HDPE); and linear low-density polyethylene with short-branched polymer chains which, in addition to ethylene as a comonomer, can contain one or more higher ⁇ , ⁇ -unsaturated olefins such as butylene, hexene or octene, with a density in the range from 0.915 to 0.94 g/cm 3 (LLDPE).
  • LDPE low density in the range of 0.915 to 0.940 g/cm 3
  • MDPE average density ranging from 0.926 to 0.940 g/cm 3
  • the release coating preferably has a weight per unit area of at most 0.65 g/m 2 ; preferably at most 0.60 g/m 2 , more preferably at most 0.55 g/m 2 , even more preferably at most 0.50 g/m 2 , most preferably at most 0.45 g/m 2 , and especially at most 0.40 g/m 2 square meters; preferably at most 0.35 g/m 2 , more preferably at most 0.30 g/m 2 , even more preferably at most 0.25 g/m 2 , most preferably at most 0.20 g/m 2 .
  • the polyolefin on which layer (b) is based comprises a blend of an ethylene homo- or copolymer and a propylene homo- or copolymer.
  • the polyolefin on which layer (b) is based comprises a blend of
  • propylene homo- or copolymer is understood as meaning propylene homopolymers which are based exclusively on propylene, and propylene copolymers which, in addition to propylene, are based on at least one other ⁇ , ⁇ -unsaturated olefin having 2 to 10 carbon atoms .
  • Preferred propylene homopolymers are isotactic propylene homopolymers, preferably having a melting point in the range 140-170°C.
  • Preferred propylene copolymers are copolymers of propylene and ethylene, the proportion of ethylene preferably being at most 20% by weight, based on the total weight of the propylene copolymer.
  • Layer (b) preferably consists of LDPE and a propylene homo- or copolymer.
  • Layer (b) preferably consists of LLDPE and a propylene homo- or copolymer.
  • the release film preferably has a total layer thickness of at least 10 ⁇ m.
  • the optionally present first sealing layer (a) and/or the optionally present second sealing layer (c) are preferably each based independently of one another Polyolefin, wherein the polyolefin is selected from the group consisting of olefin homo- or copolymers of ⁇ , ⁇ -unsaturated olefins having 2 to 10 carbon atoms; or an ethylene-vinyl acetate copolymer.
  • the optionally present first sealing layer (a) and/or the optionally present second sealing layer (c) are each independently based on an ethylene-vinyl acetate copolymer.
  • the optionally present first sealing layer (a) and/or the optionally present second sealing layer (c) are each independently based on polyolefin, the polyolefin being selected from the group consisting of olefin homo- or Copolymers of ⁇ , ⁇ -unsaturated olefins having 2 to 10 carbon atoms.
  • the polyolefin of the optionally present first sealing layer (a) and/or the optionally present second sealing layer (c) is preferably independently selected from the group consisting of polyethylene, polypropylene, polybutylene, polyisobutylene, polyhexene , Polyoctene, copolymers and / or mixtures of at least two of the polymers mentioned.
  • the olefin homo- or copolymer of the first sealing layer (a) if present and/or the second sealing layer (c) if present is preferably in each case independently of one another an ethylene homopolymer or an ethylene copolymer.
  • the ethylene homo- or copolymer of the optionally present first sealing layer (a) and/or the optionally present second sealing layer (c) is preferably each independently selected from the group consisting of low-density polyethylene (LDPE), linear Low Density Polyethylene (LLDPE), Medium Density Polyethylene (MDPE), High Density Polyethylene (HDPE), and blends thereof.
  • LDPE low-density polyethylene
  • LLDPE linear Low Density Polyethylene
  • MDPE Medium Density Polyethylene
  • HDPE High Density Polyethylene
  • the first sealing layer (a), if present, and/or the second sealing layer (c), if present, preferably each consist, independently of one another, of a mixture of two ethylene homo- or copolymers, preferably of a mixture of LDPE with LLDPE, MDPE, or HDPE.
  • the proportion of LDPE is preferably in the range from 10 to 85% by weight and the proportion of the second ethylene homo- or copolymer is preferably in the range from 15 to 90% by weight.
  • the release film preferably has a total layer thickness of at least 5.0 ⁇ m; preferably at least 6.0 pm, more preferably at least 7.0 pm, even more preferably at least 8.0 pm, most preferably at least 9.0 pm, and especially at least 10 pm.
  • the separating film preferably has a total layer thickness in the range from 5.0 ⁇ m to 50 ⁇ m; preferably in the range of 10 ⁇ 5.0 pm, or 12.5 ⁇ 5.0 pm, or 15 ⁇ 5.0 pm, or 17.5 ⁇ 5.0 pm, or 20 ⁇ 5.0 pm.
  • the release coating preferably borders directly on the carrier film.
  • the second surface side of the release film is preferably not coated.
  • the release film preferably consists of the carrier film and the release coating.
  • the first surface side and optionally the second surface side are each coated independently of one another by at least 10%; preferably at least 20%, preferably at least 30%, preferably at least 40%, preferably at least 50%, preferably at least 60%, more preferably at least 70%, even more preferably at least 80%, most preferably at least 90%, and especially completely (100%).
  • the carrier film is smooth.
  • the carrier film is preferably structured.
  • the structuring can have different causes.
  • the carrier film can be provided with a structure, i.e. through an independent process step as an active measure.
  • the carrier film can have a natural structure due to its material properties.
  • the carrier film is preferably embossed.
  • the first surface side of the carrier film is preferably non-planar.
  • the first surface side of the carrier film preferably has an embossed structure on at least part of its surface.
  • the first surface side and the second surface side of the carrier film each have an embossed structure on at least part of their surface.
  • the embossed structure preferably has a regular pattern.
  • the first surface side of the carrier film preferably has embossed elevations.
  • the first surface side of the carrier film preferably has an average peak-to-valley height R z according to DIN EN ISO 4287 of at least 5.0 ⁇ m; preferably at least 7.0 pm, more preferably at least 9.0 pm, even more preferably at least 11 pm, most preferably at least 13 pm, and especially at least 15 pm.
  • the first surface side of the carrier film preferably has an average peak-to-valley height R z according to DIN EN ISO 4287 of at most 100 ⁇ m; preferably at most 90 ⁇ m, more preferably at most 80 ⁇ m, even more preferably at most 70 ⁇ m, most preferably at most 60 ⁇ m, and especially at most 50 ⁇ m.
  • the first surface side of the carrier film preferably has an average peak-to-valley height R z according to DIN EN ISO 4287 in the range from 5.0 to 100 ⁇ m; preferably in the range of 10 ⁇ 5.0 pm, or 12.5 ⁇ 5.0 pm, or 15 ⁇ 5.0 pm, or 17.5 ⁇ 5.0 pm, or 20 ⁇ 5.0 pm, or 22, 5 ⁇ 5.0 pm, or 25 ⁇ 5.0 pm, or 27.5 ⁇ 5.0 pm, or 30 ⁇ 5.0 pm, or 32.5 ⁇ 5.0 pm, or 35 ⁇ 5.0 pm , or 37.5 ⁇ 5.0 pm, or 40 ⁇ 5.0 pm, or 42.5 ⁇ 5.0 pm, or 45 ⁇ 5.0 pm, or 47.5 ⁇ 5.0 pm, or 50 ⁇ 5.0 pm, or 52.5 ⁇ 5.0 pm, or 55 ⁇ 5.0 pm, or 57.5 ⁇ 5.0 pm, or 60 ⁇ 5.0 pm, or 62.5 ⁇ 5.0 pm , or 65 ⁇ 5.0 pm, or 67.5 ⁇ 5.0 pm, or 70 ⁇ 5.0 pm, or 72.5 ⁇ 5.0 pm, or 75 ⁇ 5.0 pm, or 77.5 ⁇ 5.0 pm, or 80 ⁇ 5.0 pm, or 82.5 ⁇ 5.0 pm, or 85 ⁇ 5.0 pm, or 8
  • the carrier film is preferably printed over part or all of its surface.
  • the carrier film is preferably partially or fully printed on its first surface side.
  • the backing film preferably has a single layer.
  • the carrier film is preferably multi-layered.
  • the multilayer carrier film preferably consists of a total of two, three, four, five, six, seven, eight or nine layers; preferably two or three layers.
  • the multilayer carrier film preferably has a symmetrical layer sequence.
  • the carrier film consists of a total of three layers: the first sealing layer (a), which forms the first surface side; - the layer (b); and
  • the multilayer carrier film consists of a total of nine layers, with three layers in each case being identical.
  • layer (b) forms the first surface side of the carrier film.
  • layer (b) forms the second surface side of the carrier film.
  • the first sealing layer (a) forms the first surface side of the carrier film.
  • the second sealing layer (c) forms the second surface side of the carrier film.
  • the carrier film is preferably based on a polyolefin mixture, or the carrier film comprises at least one layer which is based on a polyolefin mixture.
  • the polyolefin mixture preferably comprises at least two polyolefins which are incompatible with one another.
  • the carrier film preferably comprises an additive or the carrier film comprises at least one layer which comprises an additive, the additive being selected from the group consisting of fillers such as CaCO. plasticizers; lubricants; emulsifiers; pigments; rheology additives; catalysts; flow control agents; optical brighteners; light stabilizers; antioxidants; clarifying agents such as substituted or unsubstituted bisbenzylidene sorbitols; flame retardants; antistatic agents; UV absorbers such as benzoxazinones; propellants; and thiosynergists such as thiodipropionic acid dilauryl esters or thiodipropionic acid distearyl esters.
  • fillers such as CaCO. plasticizers; lubricants; emulsifiers; pigments; rheology additives; catalysts; flow control agents; optical brighteners; light stabilizers; antioxidants; clarifying agents such as substituted or unsubstituted bisbenzy
  • the carrier film preferably does not comprise a layer which is based on a fleece or comprises a fleece.
  • the carrier film preferably does not comprise a layer which is based on paper or comprises paper.
  • the release coating preferably has a weight per unit area of at least 0.1 g/m 2 ; preferably at least 0.15 g/m 2 , more preferably at least 0.2 g/m 2 , even more preferably at least 0.25 g/m 2 , most preferably at least 0.3 g/m 2 , and especially at least 0.35 g/m 2 m2 .
  • the release coating preferably has a weight per unit area of at most 0.6 g/m 2 ; preferably at most 0.5 g/m 2 , more preferably at most 0.4 g/m 2 , even more preferably at most 0.3 g/m 2 , and most preferably at most 0.2 g/m 2 .
  • the release coating preferably has a weight per unit area in the range from 0.1 g/m 2 to 0.7 g/m 2 ; preferably in the range of 0.3 ⁇ 0.2 g/m 2 , or 0.35 ⁇ 0.2 g/m 2 , or 0.4 ⁇ 0.2 g/m 2 , or 0.45 ⁇ 0.2 g/m 2 g/m 2 , or 0.5 ⁇ 0.2 g/m 2 ; more preferably 0.4 ⁇ 0.2 g/m 2 ; more preferably 0.40 ⁇ 0.15 g/m 2 , most preferably 0.4 ⁇ 0.1 g/m 2 ; and in particular 0.40 ⁇ 0.05 g/m 2 .
  • the release coating preferably has a layer thickness of at least 0.10 ⁇ m; preferably at least 0.15 pm, more preferably at least 0.20 pm, even more preferably at least 0.25 pm, most preferably at least 0.30 pm, and especially at least 0.35 pm.
  • the release coating preferably has a layer thickness of at most 4.0 ⁇ m; preferably at most 3.5 pm, more preferably at most 3.0 pm, even more preferably at most 2.5 pm, most preferably at most 2.0 pm, and especially at most 1.0 pm.
  • the release coating preferably has a layer thickness in the range from 1.0 to 4.0 ⁇ m; preferably in the range of 0.10 to 4.0 ⁇ m; preferably in the range of 0.15 ⁇ 0.05 pm, or 0.20 ⁇ 0.05 pm, or 0.25 ⁇ 0.05 pm, or 0.30 ⁇ 0.05 pm, or 0.35 ⁇ 0, 05 pm, or 0.45 ⁇ 0.05 pm, or 0.50 ⁇ 0.05 pm, or 0.55 ⁇ 0.05 pm, or 0.60 ⁇ 0.05 pm, or 0.65 ⁇ 0, 05 pm, or 0.70 ⁇ 0.05 pm, or 0.75 ⁇ 0.05 pm, or 0.80 ⁇ 0.05 pm, or 0.85 ⁇ 0.05 pm, or 0.90 ⁇ 0, 05 pm, or 0.95 ⁇ 0.05 pm, or 1.5 ⁇ 0.5 pm, or 2.0 ⁇ 0.5 pm, or 2.5 ⁇ 0.5 pm, or 3.0 ⁇ 0, 5 pm, or 3.5 ⁇ 0.5 pm.
  • the release coating is preferably based on at least one cured polysiloxane, which is selected from the group consisting of addition-crosslinked, preferably metal-catalyzed addition-crosslinked, condensation-crosslinked, free-radically crosslinked, and/or cationically crosslinked polysiloxanes; preferably radically crosslinked polysiloxanes.
  • the release coating is preferably based on at least one cured polysiloxane selected from the group consisting of polydialkylsiloxanes, preferably polydimethylsiloxanes; and polyalkylarylsiloxanes, preferably polymethylphenylsiloxanes; preferably chemically crosslinked acrylate functionalized polysiloxanes; more preferably chemically crosslinked Acrylate-functionalized polydialkylsiloxanes, preferably chemically crosslinked acrylate-functionalized polydimethylsiloxanes; or chemically crosslinked acrylate functionalized polyalkylarylsiloxanes, preferably chemically crosslinked acrylate functionalized polymethylphenylsiloxanes.
  • the release coating preferably comprises at least one further cured polysiloxane; preferably an acrylate functionalized polydialkylsiloxane; preferably a chemically crosslinked long chain acrylate functionalized polydialkylsiloxane.
  • a long-chain acrylate-functionalized polydialkylsiloxane is preferably an acrylate-functionalized polydialkylsiloxane comprising at least one C2-6 alkyl radical, which may be saturated or unsaturated and substituted or unsubstituted.
  • the first sealing layer (a) preferably has a layer thickness of at least 1.0 ⁇ m; preferably at least 2.0 pm, preferably at least 3.0 pm, preferably at least 4.0 pm, preferably at least 5.0 pm, more preferably at least 6.0 pm, even more preferably at least 7.0 pm, most preferably at least 8.0 pm , and in particular at least 9.0 pm.
  • the first sealing layer (a) preferably has a layer thickness of at most 10 ⁇ m; preferably at most 9.0 ⁇ m, more preferably at most 8.0 ⁇ m, even more preferably at most 7.0 ⁇ m, most preferably at most 6.0 ⁇ m and especially at most 5.0 ⁇ m.
  • the first sealing layer (a) preferably has a layer thickness in the range from 4.0 to 10 ⁇ m; preferably from 5.0 to 9.0 pm, and more preferably from 6.0 to 8.0 pm.
  • Layer (b) preferably has a layer thickness of at least 5.0 ⁇ m; preferably at least 6.0 pm, more preferably at least 8.0 pm, even more preferably at least 9.0 pm, most preferably at least 12 pm, and especially at least 16 pm.
  • Layer (b) preferably has a layer thickness of at most 24.9 ⁇ m; preferably at most 22 pm, more preferably at most 20 pm, even more preferably at most 18 pm, most preferably at most 16 pm and especially at most 14 pm.
  • Layer (b) preferably has a layer thickness in the range from 5.0 to 24.9 ⁇ m; preferably from 6.0 to 22 pm, more preferably from 8.0 to 20 pm, even more preferably from 9.0 to 18 pm, and most preferably from 12 to 16 pm.
  • the second sealing layer (c) preferably has a layer thickness of at least 4.0 ⁇ m; preferably at least 5.0 ⁇ m, more preferably at least 6.0 ⁇ m, even more preferably at least 7.0 ⁇ m, most preferably at least 8.0 ⁇ m, and especially at least 9.0 ⁇ m.
  • the second sealing layer (c) preferably has a layer thickness of at most 10 ⁇ m; preferably at most 9.0 ⁇ m, more preferably at most 8.0 ⁇ m, still more preferably at most 7.0 ⁇ m, most preferably at most 6.0 ⁇ m and especially at most 5.0 ⁇ m.
  • the second sealing layer (c) preferably has a layer thickness in the range from 4.0 to 10 ⁇ m; preferably from 5.0 to 9.0 ⁇ m, and more preferably from 6.0 to 8.0 ⁇ m.
  • the tensile strength of the release film in the machine direction is preferably at least 6.5 N/cm, preferably determined according to DIN EN ISO 527-3.
  • the average release force of the release film is preferably at least 2.0 cN/cm; preferably at least 4.0 cN/cm, more preferably at least 6.0 cN/cm, even more preferably at least 8.0 cN/cm, most preferably at least 10 cN/cm, and especially at least 12 cN/cm; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • the average release force of the release film is preferably at most 30 cN/cm; preferably at most 25 cN/cm, more preferably at most 20 cN/cm, even more preferably at most 15 cN/cm, most preferably at most 10 cN/cm, and especially at most 8.0 cN/cm; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • the average release force of the release film is preferably in the range from 2.0 to 30 cN/cm; preferably in the range of 6.0 ⁇ 4.0 cN/cm, or 10 ⁇ 8.0 cN/cm, or 10 ⁇ 4.0 cN/cm, or 14 ⁇ 12 cN/cm, or 14 ⁇ 8.0 cN /cm, or 14 ⁇ 4.0 cN/cm, or 18 ⁇ 12 cN/cm, or 18 ⁇ 8.0 cN/cm, or 18 ⁇ 4.0 cN/cm, or 22 ⁇ 8.0 cN/cm , or 22 ⁇ 4.0 cN/cm, or 26 ⁇ 4.0 cN/cm; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • FINAT 10 preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20
  • the difference between the maximum separating force of the separating film and the average separating force of the separating film is preferably at most 20 cN/cm; preferably at most 15 cN/cm, more preferably at most 12.5 cN/cm, even more preferably at most 10 cN/cm, most preferably at most 7.5 cN/cm, and especially at most 5.0 cN/cm; preferably determined according to FINAT 10, preferred over a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • the difference between the maximum release force of the release film and the average release force of the release film is preferably in the range from 1.0 to 30 cN/cm; preferably in the range 1.3 to 20 cN/cm, more preferably 1.6 to 16 cN/cm, even more preferably 1.9 to 13 cN/cm, most preferably 2.2 to 10 cN/cm, and especially 2.5 up to 7.0 cN/cm; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • the separating force of the separating film preferably has a variance of at most 6.0 cN 2 /cm 2 along the measuring section; preferably at most 3.0 cN 2 /cm 2 , more preferably at most 1.5 cN 2 /cm 2 , even more preferably at most 0.8 cN 2 /cm 2 , most preferably at most 0.4 cN 2 /cm 2 , and especially at most 0 .2 cN 2 /cm 2 ; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • the separating force of the separating film has a variance in the range from 0.001 to 0.7 cN 2 /cm 2 along the measuring section; preferably in the range of 0.002 to 0.6 cN 2 /cm 2 , more preferably 0.004 to 0.5 cN 2 /cm 2 , even more preferably 0.006 to 0.4 cN 2 /cm 2 , most preferably 0.008 to 0.3 cN 2 / cm 2 , and in particular 0.01 to 0.2 cN 2 /cm 2 ; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • FINAT 10 preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • the separating force of the separating film preferably has a variance of at most 6.0 cN 2 /cm 2 over a number of measurements; preferably at most 3.0 cN 2 /cm 2 , more preferably at most 1.5 cN 2 /cm 2 , even more preferably at most 0.8 cN 2 /cm 2 , most preferably at most 0.4 cN 2 /cm 2 , and especially at most 0 .2 cN 2 /cm 2 ; preferably determined via at least two measurements, more preferably at least three measurements, even more preferably at least four measurements, most preferably at least five measurements, and in particular at least six measurements; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • FINAT 10 preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf
  • the release force of the release film preferably has a variance in the range from 0.001 to 0.7 cN 2 /cm 2 over a number of measurements; preferably in the range of 0.002 to 0.6 cN 2 /cm 2 , more preferably 0.004 to 0.5 cN 2 /cm 2 , even more preferably 0.006 to 0.4 cN 2 /cm 2 , most preferably 0.008 to 0.3 cN 2 / cm 2 , and in particular 0.01 to 0.2 cN 2 /cm 2 ; preferably determined according to FINAT 10, preferred to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a peel speed of 300 mm/min.
  • the release force of the release film preferably has a variance of at most 16 cN 2 /cm 2 over the entire surface which is coated with the release coating; preferably at most 8.0 cN 2 /cm 2 , more preferably at most 4.0 cN 2 /cm 2 , even more preferably at most 2.0 cN 2 /cm 2 , most preferably at most 1.0 cN 2 /cm 2 , and especially at most 0 .5 cN2 / cm2 ; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • the release force of the release film preferably has a variance in the range from 0.001 to 0.7 cN 2 /cm 2 over the entire surface which is coated with the release coating; preferably in the range of 0.002 to 0.6 cN 2 /cm 2 , more preferably 0.004 to 0.5 cN 2 /cm 2 , even more preferably 0.006 to 0.4 cN 2 /cm 2 , most preferably 0.008 to 0.3 cN 2 / cm 2 , and in particular 0.01 to 0.2 cN 2 /cm 2 ; preferably determined in accordance with FINAT 10, preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm/min.
  • FINAT 10 preferably compared to a test adhesive tape TESA® 7475 from Beiersdorf after storage for 20 h at 70° C. and at a pull-off speed of 300 mm
  • the release film preferably has a release force which is as uniform as possible over the entire surface which is coated with the release coating.
  • the polyolefin on which layer (b) is based comprises a mixture of
  • the release coating has a basis weight of at most 0.5 g/m 2 ; and wherein the release film has a total layer thickness of at least 10 ⁇ m.
  • the polyolefin on which layer (b) is based comprises a blend of
  • the release coating has a basis weight of at most 0.5 g/m 2 ; and wherein the release film has a total layer thickness of at least 10 ⁇ m.
  • the polyolefin on which layer (b) is based comprises a mixture of
  • the release coating has a basis weight of at most 0.5 g/m 2 ; and wherein the release film has a total layer thickness of at least 10 ⁇ m.
  • the carrier film comprises the first sealing layer (a), which is preferably based on ethylene-vinyl acetate copolymer or ethylene homo or copolymer; preferably ethylene homo- or copolymer; and layer (b), wherein the polyolefin on which layer (b) is based comprises a blend of
  • ethylene homo- or copolymer with a density ranging from 0.91 to 0.97 g/cm 3 ; preferably LDPE or LLDPE; and
  • the release coating has a basis weight of at most 0.5 g/m 2 ; and wherein the release film has a total layer thickness of at least 10 ⁇ m.
  • the carrier film comprises the first sealing layer (a), which is preferably based on ethylene-vinyl acetate copolymer or ethylene homo or copolymer; preferably ethylene homo- or copolymer; the layer (b), wherein the polyolefin on which the layer (b) is based comprises a mixture of
  • ethylene homo- or copolymer with a density ranging from 0.91 to 0.97 g/cm 3 ; preferably LDPE or LLDPE; and
  • the second sealing layer (c) which is preferably based on ethylene vinyl acetate copolymer or ethylene homo- or copolymer; preferably ethylene homo- or copolymer; wherein the release coating has a basis weight of at most 0.5 g/m 2 ; and wherein the release film has a total layer thickness of at least 10 ⁇ m.
  • the carrier film comprises the first sealing layer (a) which is based on ethylene homo- or copolymer; the layer (b), wherein the polyolefin on which the layer (b) is based comprises a mixture of
  • ethylene homo- or copolymer with a density ranging from 0.91 to 0.97 g/cm 3 ; preferably LDPE or LLDPE; and
  • first sealant layer (a) and the second sealant layer (c) each independently consist of a blend of two ethylene homo- or copolymers; preferably a blend of LDPE with LLDPE, MDPE, or HDPE; the proportion of LDPE preferably being in the range from 10 to 85% by weight; and wherein the proportion of the second ethylene homo- or copolymer is preferably in the range of 15 to 90% by weight; in each case based on the total weight of the mixture; wherein the release coating has a basis weight of at most 0.5 g/m 2 ; and wherein the release film has a total layer thickness of at least 10 ⁇ m.
  • Another aspect of the invention relates to a method for producing a release film by coating a carrier film with a release coating, the method comprising the steps:
  • a coating composition which comprises a solvent component, preferably comprising ethyl acetate, propyl acetate, butyl acetate and/or n-propanol, and a UV-curable silicone system;
  • step (c) coating at least part of the first surface side of the carrier film provided in step (a) with the coating composition provided in step (b);
  • step (d) evaporating at least a portion of the solvent component; and (e) irradiating at least part of the first surface side of the carrier film coated in step (c) with UV radiation to cure the silicone system.
  • the method according to the invention is aimed at the production of a release film.
  • a coating composition in step (b) of the method of the invention, includes a solvent component and a UV-curable silicone system.
  • the coating composition preferably serves to uniformly apply a release coating of controlled thickness to the carrier film.
  • the release coating can cover the entire surface and completely cover the carrier film, or only part of the surface and partially cover the carrier film.
  • Preferred techniques used in the present invention for coating i.e. applying the coating composition that forms the release coating after evaporation of the solvent component, are roll coating, gravure coating, multi-roll coating, reverse roll, air knife or wire wound rod.
  • Step (c) preferably additionally comprises coating at least part of the second surface side of the carrier film provided in step (a) with the coating composition provided in step (b) or with another coating composition.
  • the solvent component can consist of a single solvent or can comprise a mixture of several solvents. All weight and percentage data are based on the total weight of the solvent component, unless expressly stated otherwise.
  • the UV-curable silicone system can consist of a single polysiloxane or can comprise a mixture of several polysiloxanes.
  • the silicone system can also include other ingredients, for example other ingredients that contribute to the release effect, such as oils, fats, polyolefins or fluorocarbons. All weights and percentages are based on the total weight of the silicone system unless expressly stated otherwise.
  • Steps (a) to (e) are preferably carried out in alphabetical order, although other orders are also possible.
  • the order of steps (a) and (b) is immaterial.
  • all steps take place one after the other.
  • steps (d) and (e) occur simultaneously.
  • step (d) occurs partially before step (e) and partially simultaneously with step (e).
  • step (e) occurs partially before step (d) as well partially simultaneously with step (d).
  • step (d) occurs entirely before step (e).
  • step (e) takes place completely before step (d).
  • the process is preferably carried out continuously.
  • the silicone system curable by UV radiation is preferably free-radically or cationically curable.
  • the UV-curable silicone system is preferably based on at least one UV-curable polysiloxane, which is selected from the group consisting of addition-crosslinking, preferably metal-catalyzed addition-crosslinking, condensation-crosslinking, free-radically crosslinking, and/or cationically crosslinking polysiloxanes.
  • the UV-curable silicone system is based on at least one UV-curable polysiloxane selected from the group consisting of polydialkylsiloxanes, preferably polydimethylsiloxanes; and polyalkylarylsiloxanes, preferably polymethylphenylsiloxanes; preferably chemically crosslinkable acrylate-functionalized polysiloxanes; more preferably chemically crosslinkable acrylate functionalized polydialkylsiloxanes, preferably chemically crosslinkable acrylate functionalized polydimethylsiloxanes; or chemically cross-linkable acrylate-functionalized polyalkylarylsiloxanes, preferably chemically cross-linkable acrylate-functionalized polymethylphenylsiloxanes.
  • the content of the UV-curable silicone system is preferably at least 10% by weight, based on the total weight of the coating composition; preferably at least 20% by weight, more preferably at least 30% by weight, even more preferably at least 40% by weight, most preferably at least 50% by weight, and especially at least 60% by weight.
  • the content of the UV-curable silicone system is preferably at most 90% by weight, based on the total weight of the coating composition; preferably at most 80% by weight, more preferably at most 70% by weight, even more preferably at most 60% by weight, most preferably at most 50% by weight, and especially at most 40% by weight.
  • the UV-curable silicone system content ranges from 10 to 90% by weight based on the total weight of the coating composition; preferably in the range of 20 ⁇ 10% by weight, or 25 ⁇ 10% by weight, or 30 ⁇ 10% by weight, or 35 ⁇ 10% by weight, or 40 ⁇ 10% by weight, or 45 ⁇ 10% by weight, or 50 ⁇ 10% by weight, or 55 ⁇ 10% by weight, or 60 ⁇ 10% by weight, or 65 ⁇ 10% by weight. -%, or 70 ⁇ 10% by weight, or 75 ⁇ 10% by weight, or 80 ⁇ 10% by weight.
  • the solvent component preferably comprises one or more Ci-6-alkyl acid Ci-6-alkyl esters or consists of them.
  • the solvent component preferably comprises a solvent selected from the group consisting of ethyl acetate, propyl acetate, butyl acetate and mixtures thereof.
  • the solvent component preferably comprises or consists of ethyl acetate.
  • the solvent component preferably comprises or consists of propyl acetate; preferably n-propyl acetate, isopropyl acetate or a mixture thereof.
  • the solvent component preferably comprises or consists of butyl acetate; preferably n-butyl acetate, isobutyl acetate, sec-butyl acetate, tert-butyl acetate, or any mixtures thereof.
  • the solvent component preferably comprises or consists of one or more C 1-6 alkyl alcohols.
  • the solvent component preferably comprises or consists of a solvent which is selected from the group consisting of methanol, ethanol, propanol, butanol, ethoxypropanol and mixtures thereof.
  • the solvent component preferably comprises or consists of propanol; preferably n-propanol, isopropanol or mixtures thereof.
  • the solvent component preferably consists of a single solvent, i.e. there is preferably no mixture of several different solvents.
  • the solvent component consists of at least two solvents, i.e. there is a mixture of two or more different solvents.
  • the at least two solvents of the solvent component are present in a ratio ranging from 5:1 to 1:1; preferably 4:1 to 1:1, more preferably 3:1 to 1:1, even more preferably 2:1 to 1:1, and especially in a ratio of 1:1.
  • the solvent component preferably comprises or consists of one or more Ci-6-alkyl acid-Ci-6-alkyl esters and one or more Ci-6-alkyl alcohols.
  • the solvent component preferably comprises or consists of at least two solvents which are selected from the group consisting of ethyl acetate, propyl acetate, butyl acetate, methanol, ethanol, propanol, butanol, ethoxypropanol and mixtures thereof.
  • the solvent component preferably comprises or consists of ethyl acetate and propanol; preferably n-propanol, isopropanol or a mixture thereof; particularly preferably n-propanol.
  • the solvent component comprises or consists of ethyl acetate and n-propanol in a ratio of 1:1.
  • the solvent component preferably comprises or consists of a solvent which has a molecular weight of at least 85 g/mol; preferably at least 90 g/mol, more preferably at least 95 g/mol, even more preferably at least 100 g/mol, most preferably at least 105 g/mol, and especially at least 110 g/mol.
  • the solvent component preferably comprises or consists of a solvent which has a molecular weight of at most 120 g/mol, preferably at most 115 g/mol, more preferably at most 110 g/mol, even more preferably at most 105 g/mol, most preferably at most 100 g /mol, and in particular at most 95 g/mol.
  • the solvent component preferably comprises or consists of a solvent which has a molecular weight in the range from 85 g/mol to 120 g/mol; preferably in the range of 95 ⁇ 10 g/mol, or 100 ⁇ 10 g/mol, or 105 ⁇ 10 g/mol, or 110 ⁇ 10 g/mol.
  • the solvent component preferably comprises or consists of a solvent which has a boiling point of at least 70° C.; preferably at least 80°C, more preferably at least 90°C, even more preferably at least 100°C, most preferably at least 110°C, and especially at least 120°C.
  • the boiling point is preferably determined according to DIN 53171:2009-08.
  • the solvent component preferably comprises or consists of a solvent which has a boiling point of at most 135° C.; preferably at most 125°C, more preferably at most 115°C, even more preferably at most 105°C, most preferably at most 95°C, and especially at most 85°C.
  • the solvent component preferably comprises or consists of a solvent which has a boiling point in the range from 70° C. to 135° C.; preferably in the range of 80 ⁇ 10°C, or 85 ⁇ 10°C, or 90 ⁇ 10°C, or 95 ⁇ 10°C, or 100 ⁇ 10°C, or 105 ⁇ 10°C, or 110 ⁇ 10° C, or 115 ⁇ 10 °C, or 120 ⁇ 10 °C, or 125 ⁇ 10 °C.
  • the solvent component preferably comprises or consists of a solvent which has a dipole moment of at least 1.75 D; preferably at least 1.77 D, more preferably at least 1.79 D, even more preferably at least 1.81 D, most preferably at least 1.83 D, and especially at least 1.85 D.
  • the solvent component preferably comprises or consists of a solvent which has a dipole moment of at most 1.90 D; preferably at most 1.88 D, more preferably at most 1.86 D, even more preferably at most 1.84 D, most preferably at most 1.82 D, and especially at most 1.80 D.
  • the solvent component preferably comprises or consists of a solvent which has a dipole moment in the range from 1.75 D (5.837-10" 30 Cm) to 1.90 D (6.337-10" 30 Cm); preferably in the range of 1.75 D to 1.90 D; preferably in the range of 1.77 ⁇ 0.02 D, or 1.78 ⁇ 0.02 D, or 1.79 ⁇ 0.02 D, or 1.80 ⁇ 0.02 D, or 1.81 ⁇ 0, 05 D, or l.82 ⁇ 0.02 D, or l.83 ⁇ 0.05 D, or l.84 ⁇ 0.02 D, or l.85 ⁇ 0.02 D, or l.86 ⁇ 0, 02 D, or l.87 ⁇ 0.02 D, or l.88 ⁇ 0.02 D.
  • the solvent component preferably comprises or consists of a solvent which has an evaporation number of at least 2.9; preferably at least 4.0, more preferably at least 5.0, even more preferably at least 6.0, most preferably at least 7.0, and especially at least 8.0.
  • the evaporation number is preferably determined according to DIN 53170:2009-08.
  • the solvent component preferably comprises or consists of a solvent which has an evaporation number of at most 12; preferably at most 11, more preferably at most 10, even more preferably at most 9.0, most preferably at most 8.0, and especially at most 7.0.
  • the solvent component preferably comprises or consists of a solvent which has an evaporation number in the range from 2.9 to 12; preferably in the range of 4.0 ⁇ 1.0, or 4.5 ⁇ 1.0, or 5.0 ⁇ 1.0, or 5.5 ⁇ 1.0, or 6.0 ⁇ 1.0, or 6 .5 ⁇ l.0, or 7.0 ⁇ l.0, or 7.5 ⁇ l.0, or 8.0 ⁇ l.0, or 8.5 ⁇ l.0, or 9.0 ⁇ l, 0, or 9.5 ⁇ l.0, or 10 ⁇ l.0, or 10.5 ⁇ l.0, or 1 l ⁇ l.0.
  • the solvent component comprises or consists of a solvent having a dielectric constant of at least 2.40 F/m; preferably at least 3.00 F/m, more preferably at least 3.50 f/m, even more preferably at least 4.00 f/m, most preferably at least 4.50 f/m, and especially at least 5.00 f/m.
  • the solvent component comprises or consists of a solvent which has a dielectric constant of at most 16.00 F/m; preferably at most 14.40 f/m, more preferably at most 12.40 f/m, even more preferably at most 10.40 f/m, most preferably at most 8.40 f/m, and in particular at most 6.40 f/m.
  • the solvent component comprises or consists of a solvent having a dielectric constant in the range of 2.40 F/m to 16.00 F/m; preferably in the range of 4.50 ⁇ 2.00 f/m, or 5.00 ⁇ 2.00 f/m, or 5.50 ⁇ 2.00 f/m, or 6.00 ⁇ 2.00 f/m , or 6.50 ⁇ 2.00 f/m, or 7.00 ⁇ 2.00 f/m, or 7.50 ⁇ 2.00 f/m, or 8.00 ⁇ 2.00 f/m, or 8.50 ⁇ 2.00 f/m, or 9.00 ⁇ 2.00 f/m, or 9.50 ⁇ 2.00 f/m, or 10.00 ⁇ 2.00 f/m, or 10, 50 ⁇ 2.00 f/m, or 11.00 ⁇ 2.00 f/m, or 11.50 ⁇ 2.00 f/m, or 12.00 ⁇ 2.00 f/m, or 12.50 ⁇ 2.00 f/m, or 13.00 ⁇ 2.00 f/m, or 13.50 ⁇ 2.00 f/m, or 14.00
  • the solvent component preferably comprises or consists of a solvent which has a viscosity of at least 0.30 mm 2 /s; preferably at least 0.32 mm 2 /s, more preferably at least 0.34 mm 2 /s, even more preferably at least 0.36 mm 2 /s, most preferably at least 0.38 mm 2 /s, and especially at least 0.40 mm 2 /s.
  • the solvent component preferably comprises or consists of a solvent which has a maximum viscosity of 0.8 mm 2 /s; preferably at most 0.78 mm 2 /s, more preferably at most 0.76 mm 2 /s, even more preferably at most 0.74 mm 2 /s, most preferably at most 0.72 mm 2 /s, and in particular at most 0.70 mm 2 /s.
  • the solvent component preferably comprises or consists of a solvent which has a viscosity in the range from 0.3 mm 2 /s to 0.8 mm 2 /s; preferably in the range of 0.4 ⁇ 0.1 mm 2 /s, or 0.45 ⁇ 0.1 mm 2 /s, or 0.5 ⁇ 0.1 mm 2 /s, or 0.55 ⁇ 0.1 mm 2 /s, or 0.6 ⁇ 0.1 mm 2 /s, or 0.65 ⁇ 0.1 mm 2 /s, or 0.7 ⁇ 0.1 mm 2 /s.
  • the solvent component preferably comprises or consists of a solvent which has a surface tension of at least 22 mN/m; preferably at least 22.2 mN/m, more preferably at least 22.4 mN/m, even more preferably at least 22.6 mN/m, most preferably at least 22.8 mN/m, and especially at least 23 mN/m.
  • the solvent component preferably comprises or consists of a solvent which has a surface tension of at most 26 mN/m; preferably at most 25.9 mN/m, more preferably at most 25.8 mN/m, even more preferably at most 25.7 mN/m, most preferably at most 25.6 mN/m, and in particular at most 25.5 mN/m.
  • the solvent component preferably comprises or consists of a solvent which has a surface tension in the range from 22 mN/m to 26 mN/m; preferably in the range of 22.6 ⁇ 0.5 mN/m, or 22.8 ⁇ 0.5 mN/m, or 23 ⁇ 0.5 mN/m, or 23.2 ⁇ 0.5 mN/m, or 23.4 ⁇ 0.5 mN/m, or 23.6 ⁇ 0.5 mN/m, or 23.8 ⁇ 0.5 mN/m, or 24 ⁇ 0.5 mN/m, or 24.2 ⁇ 0.5 mN/m, or 24.4 ⁇ 0.5 mN/m, or 24.6 ⁇ 0.5 mN/m, or 24.8 ⁇ 0.5 mN/m, or 25 ⁇ 0.5 mN /m, or 25.2 ⁇ 0.5 mN/m, or 25.4 ⁇ 0.5 mN/m.
  • the solvent component preferably comprises or consists of a solvent which has a flash point of at least ⁇ 5.0° C.; preferably at least -1.0°C, more preferably at least 3.0°C, even more preferably at least 7.0°C, most preferably at least 11°C, and especially at least 15°C.
  • the flash point is preferably determined according to DIN EN ISO 2719:2016-11.
  • the solvent component preferably comprises or consists of a solvent which has a flash point of at most 30° C.; preferably at most 26°C, more preferably at most 22°C, even more preferably at most 18°C, most preferably at most 14°C, and especially at most 10°C.
  • the solvent component preferably comprises or consists of a solvent which has a flash point in the range from -5.0° C. to 30° C.; preferably in the range of -1.0 ⁇ 4.0 °C, or 1.0 ⁇ 4.0 °C, or 3.0 ⁇ 4.0 °C, or 5.0 ⁇ 4.0 °C, or 7 .0 ⁇ 4.0 °C, or 9.0 ⁇ 4.0 °C, or 11 ⁇ 4.0 °C, or 13 ⁇ 4.0 °C, or 15 ⁇ 4.0 °C, or 17 ⁇ 4.0 °C, or 19 ⁇ 4.0 °C, or 21 ⁇ 4.0 °C, or 23 ⁇ 4.0 °C, or 25 ⁇ 4.0 °C.
  • the solvent component preferably comprises or consists of a solvent which has an ignition temperature of at least 350° C.; preferably at least 370°C, more preferably at least 390°C, even more preferably at least 410°C, most preferably at least 430°C, and especially at least 450°C.
  • the ignition temperature is determined according to DIN EN 14522:2005-12.
  • the solvent component preferably comprises or consists of a solvent which has an ignition temperature of at most 470° C.; preferably at most 450°C, more preferably at most 430°C, more preferably at most 410°C, most preferably at most 390°C, and especially at most 370°C.
  • the solvent component preferably comprises or consists of a solvent which has an ignition temperature in the range from 350° C. to 470° C.; preferably in the range of 370 ⁇ 20°C, or 380 ⁇ 20°C, or 390 ⁇ 20°C, or 400 ⁇ 20°C, or 410 ⁇ 20°C, or 420 ⁇ 20°C, or 430 ⁇ 20° C, or 440 ⁇ 20 °C, or 450 ⁇ 20 °C.
  • the solvent component preferably comprises or consists of a solvent which has a polarity of at least 155 kJ/mol; preferably at least 156 kJ/mol, more preferably at least 157 kJ/mol, even more preferably at least 158 kJ/mol, most preferably at least 159 kJ/mol, and especially at least 160 kJ/mol.
  • the solvent component preferably comprises or consists of a solvent which has a polarity of at most 162 kJ/mol; preferably at most 161 kJ/mol, more preferably at most 160 kJ/mol, even more preferably at most 159 kJ/mol, most preferably at most 158 kJ/mol, and in particular at most 157 kJ/mol.
  • the solvent component preferably comprises or consists of a solvent which has a polarity in the range from 155 kJ/mol to 162 kJ/mol; preferably in the range of 156 ⁇ 1.0 kJ/mol, or 156.5 ⁇ 1.0 kJ/mol, or 157 ⁇ 1.0 kJ/mol, or 157.5 ⁇ 1.0 kJ/mol, or 158 ⁇ l.0 kJ/mol, or 158.5 ⁇ l.0 kJ/mol, or 159 ⁇ l.0 kJ/mol, or 159.5 ⁇ l.0 kJ/mol, or 160 ⁇ l.0 kJ/mol , or 160.5 ⁇ l.0 kJ/mol, or 161 ⁇ l.0 kJ/mol.
  • the content of the solvent component is preferably at least 10% by weight, based on the total weight of the coating composition; preferably at least 20% by weight, more preferably at least 30% by weight, even more preferably at least 40% by weight, most preferably at least 50% by weight, and especially at least 60% by weight.
  • the content of the solvent component is preferably at most 90% by weight, based on the total weight of the coating composition; preferably at most 80% by weight, more preferably at most 70% by weight, even more preferably at most 60% by weight, most preferably at most 50% by weight, and especially at most 40% by weight.
  • the content of the solvent component is preferably in the range from 10 to 90% by weight, based on the total weight of the coating composition; preferably in the range of 20 ⁇ 10% by weight, or 25 ⁇ 10% by weight, or 30 ⁇ 10% by weight, or 35 ⁇ 10% by weight, or 40 ⁇ 10% by weight, or 45 ⁇ 10% by weight, or 50 ⁇ 10% by weight, or 55 ⁇ 10% by weight, or 60 ⁇ 10% by weight, or 65 ⁇ 10% by weight, or 70 ⁇ 10% by weight. -%, or 75 ⁇ 10% by weight, or 80 ⁇ 10% by weight.
  • the coating composition is preferably adjusted to a certain viscosity.
  • the amount of solvent component added serves to set the desired viscosity.
  • the amount of a particular solvent component required to adjust a particular coating composition to a particular viscosity depends on the nature of the solvent component and the other components of the coating composition and can be determined by simple routine experimentation.
  • the coating composition preferably has a viscosity of at least 1.0 mm 2 /s; preferably at least 1.5 mm 2 /s, more preferably at least 2.0 mm 2 /s, even more preferably at least 2.5 mm 2 /s, most preferably at least 3.0 mm 2 /s, and especially at least 3.5 mm 2 /s.
  • the coating composition preferably has a viscosity of at most 100 mm 2 /s; preferably at most 90 mm 2 /s, more preferably at most 80 mm 2 /s, even more preferably at most 70 mm 2 /s, most preferably 60 mm 2 /s, and in particular at most 50 mm 2 /s.
  • the coating composition preferably has a viscosity of at most 20 mm 2 /s; preferably at most 19 mm 2 /s, more preferably at most 18 mm 2 /s, even more preferably at most 17 mm 2 /s, most preferably 16 mm 2 /s, and especially at most 15 mm 2 /s.
  • the coating composition preferably has a viscosity in the range from 1.0 to 100 mm 2 /s; preferably in the range of 15 ⁇ 10 mm 2 /s, or 20 ⁇ 10 mm 2 /s, or 25 ⁇ 10 mm 2 /s, or 30 ⁇ 10 mm 2 /s, or 35 ⁇ 10 mm 2 /s, or 40 ⁇ 10 mm 2 /s, or 45 ⁇ 10 mm 2 /s, or 50 ⁇ 10 mm 2 /s, or 55 ⁇ 10 mm 2 /s, or 60 ⁇ 10 mm 2 /s, or 65 ⁇ 10 mm 2 / s, or 70 ⁇ 10 mm 2 /s, or 75 ⁇ 10 mm 2 /s, or 80 ⁇ 10 mm 2 /s, or 85 ⁇ 10 mm 2 /s, or 90 ⁇ 10 mm 2 /s.
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a
  • viscosity at least 100 mm 2 /s; preferably at least 102 mm 2 /s, more preferably at least 104 mm 2 /s, even more preferably at least 106 mm 2 /s, most preferably at least 108 mm 2 /s, and especially at least 110 mm 2 /s; and or
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a viscosity
  • the coating composition has a viscosity ranging from 5 mm 2 /s to 220 mm 2 /s; preferably in the range of 50 ⁇ 45 mm 2 /s, or 50 ⁇ 40 mm 2 /s, or 50 ⁇ 35 mm 2 /s, or 50 ⁇ 30 mm 2 /s, or 50 ⁇ 25 mm 2 /s, or 50 ⁇ 20 mm 2 /s, or 50 ⁇ 15 mm 2 /s, or 50 ⁇ 10 mm 2 /s, or 50 ⁇ 5 mm 2 /s, or 100 ⁇ 90 mm 2 /s, or 100 ⁇ 80 mm 2 /s, or 100 ⁇ 70 mm 2 /s, or 100 ⁇ 60 mm 2 /s, or 100 ⁇ 50 mm 2 /s, or 100 ⁇ 40 mm 2 /s, or 100 ⁇ 30 mm 2 /s, or 100 ⁇ 20 mm 2 /s, or 100 ⁇ 10 mm 2 /s, or 150 ⁇ 135 mm 2 /s, or 150
  • the viscosity of the coating composition according to the invention is determined at 23.degree.
  • the viscosity described above is the kinematic viscosity. Unless expressly stated otherwise, all viscosity values are kinematic viscosities.
  • the viscosity of the coating composition according to the invention can also be expressed as dynamic viscosity, the value for the dynamic viscosity in mPa ⁇ s corresponding to the value for the kinematic viscosity in mm 2 /s when the density is 1.00 g/s cm 3 .
  • the density of the coating composition according to the invention can deviate from 1.00 g/cm 3 .
  • the preferred numerical values mentioned above also apply correspondingly to the preferred ranges of the dynamic viscosity at 23.degree.
  • the viscosity of the coating composition is preferably determined using a measuring cup in accordance with DIN EN ISO 2431 or ASTM D 5125. Alternatively, the viscosity can also be determined according to DIN EN ISO 453.
  • a measuring cup with an outlet opening of 6 mm is preferably used; preferably 5 mm, more preferably 4 mm and most preferably 3 mm.
  • the international standard (DIN EN ISO 2431) describes a method for determining the outflow time using a 4 mm cup whose dimensions deviate from the DIN 53 211 cup. A longer nozzle, a larger inlet cone and slightly different internal dimensions result in different outflow times than with cups according to DIN 53 211. This also extends the measuring range, so that the DIN EN ISO cup is a useful addition to the DIN cup.
  • the measuring method is basically the same as for the DIN cup. According to the invention, the following DIN EN ISO cups are used for the following value ranges:
  • the coating composition has a flow time from a measuring cup of at least 5.0 s; preferably at least 10 s, more preferably at least 12 s, even more preferably at least 14 s, most preferably at least 16 s, and especially at least 18 s; prefers determined using a measuring cup with an outlet opening of 3 mm; preferably determined with a measuring cup according to DIN EN ISO 2431.
  • the coating composition preferably has an outflow time from a measuring cup of at most 30 s; preferably at most 29 s, more preferably at most 28 s, even more preferably at most 27 s, most preferably at most 26 s, and especially at most 25 s; preferably determined with a measuring cup with an outlet opening of 3 mm; preferably determined with a measuring cup according to DIN EN ISO 2431.
  • the coating composition preferably has an outflow time from a measuring cup of at most 25 s; preferably at most 24 s, more preferably at most 23 s, even more preferably at most 22 s, most preferably at most 21 s, and especially at most 20 s; preferably determined with a measuring cup with an outlet opening of 3 mm; preferably determined with a measuring cup according to DIN EN ISO 2431.
  • the coating composition has a flow time from a measuring cup in the range of 5.0 to 30 s; preferably in the range of 8.0 to 28 s; more preferably 11 to 26 s, even more preferably 14 to 24 s, most preferably 16 to 23 s, and especially 18 to 22 s; preferably determined with a measuring cup with an outlet opening of 3 mm; preferably determined with a measuring cup according to DIN EN ISO 2431.
  • the coating composition has a flow time from a measuring cup in the range of 5.0 to 30 s; preferably in the range of 7.0 ⁇ 2.0 s, or 9.0 ⁇ 4.0 s, or 9.0 ⁇ 2.0 s, or l l ⁇ 6.0 s, or l l ⁇ 4.0 s, or l l ⁇ 2.0 s, or 13 ⁇ 8.0 s, or 13 ⁇ 6.0 s, or 13 ⁇ 4.0 s, or 13 ⁇ 2.0 s, or 15 ⁇ 10 s, or 15 ⁇ 8, 0 s, or 15 ⁇ 6.0 s, or 15 ⁇ 4.0 s, or 15 ⁇ 2.0 s, or 17 ⁇ 12 s, or 17 ⁇ 10 s, or 17 ⁇ 8.0 s, or 17 ⁇ 6.0 s, or 17 ⁇ 4.0 s, or 17 ⁇ 2.0 s, or 19 ⁇ 10 s, or 19 ⁇ 8.0 s, or 19 ⁇ 6.0 s, or 19 ⁇ 4.0 s , or 19 ⁇ 2.0 s, or 21 ⁇ 8.0 s, or 21 ⁇ 6.0 s, or 2I ⁇ 4.0 s, or 2
  • the coating composition contains a catalyst that catalyzes the curing of the UV-curable polysiloxane.
  • step (c) comprises cooling the coating composition. In this way, the evaporation process of the solvent component in the solvent-containing formulation of the coating composition can be counteracted.
  • the coating in step (c) preferably takes place at a temperature of at least 5.0° C.; preferably at least 7.0°C, more preferably at least 9.0°C, even more preferably at least 11°C, most preferably at least 13°C, and especially at least 15°C.
  • the coating in step (c) preferably takes place at a temperature of at most 20° C.; preferably at most 18°C, more preferably at most 16°C, even more preferably at most 14°C, most preferably at most 12°C, and especially at most 10°C.
  • the coating in step (c) preferably takes place at a temperature in the range from 5.0° C. to 20° C.; preferably in the range of 6.0 ⁇ 2.0°C, or 7.0 ⁇ 2.0°C, or 8.0 ⁇ 2.0°C, or 9.0 ⁇ 2.0°C, or 10 ⁇ 2.0 °C, or l l ⁇ 2.0 °C, or 12 ⁇ 2.0 °C, or 13 ⁇ 2.0 °C, or 14 ⁇ 2.0 °C, or 15 ⁇ 2.0 °C , or 16 ⁇ 2.0 °C, or 17 ⁇ 2.0 °C, or 18 ⁇ 2.0 °C.
  • Step (c) preferably comprises applying the coating composition to at least part of the first surface side of the carrier film using a printing process, preferably a flexographic printing process.
  • a printing process preferably a flexographic printing process.
  • gravure printing methods or multi-roller application methods are also possible, particularly if a smooth carrier film is used.
  • Step (c) preferably comprises applying the coating composition to at least part of the first surface side of the carrier film using an engraved roller.
  • the scoop volume of the anilox roller used in step (c) to apply the coating composition is preferably at least 1.0 cm 3 /m 2 , preferably at least 2.0 cm 3 /m 2 , more preferably at least 3.0 cm 3 /m 2 , more preferably at least 4.0 cc /m 2 , and most preferably at least 5.0 cc /m 2 .
  • the scoop volume of the anilox roller used in step (c) for applying the coating composition is preferably at most 10 cm 3 /m 2 , preferably at most 9.0 cm 3 /m 2 , more preferably at most 8.0 cm 3 /m 2 more preferably at most 7.0 cm 3 /m 2 , and most preferably at most 6.0 cm 3 /m 2 .
  • the scoop volume of the anilox roller used in step (c) to apply the coating composition is in the range of 1.0 to 9.0 cm 3 /m 2 , preferably 2.0 to 8.0 cm 3 /m 2 , more preferably 3.0 to 7.0 cc /m 2 , more preferably 4.0 to 6.0 cc /m 2 , and most preferably 4.5 to 5.5 cc /m 2 .
  • step (c) comprises coating at least 50% of the first surface side; preferably at least 60%, more preferably at least 70%, even more preferably at least 80%, most preferably at least 90%, and especially completely (100%).
  • the evaporation of the solvent component in step (d) preferably takes place at a temperature of at least 30° C.; preferably at least 40°C, more preferably at least 50°C, even more preferably at least 60°C, most preferably at least 70°C, and especially at least 80°C.
  • the evaporation of the solvent component in step (d) preferably takes place at a temperature of at most 180° C.; preferably at most 170°C, more preferably at most 160°C, even more preferably at most 150°C, most preferably at most 140°C, and especially at most 130°C.
  • the evaporation of the solvent component in step (d) preferably takes place at a temperature in a range from 30° C. to 180° C.; preferably in the range of 50 ⁇ 20°C, or 60 ⁇ 20°C, or 70 ⁇ 20°C, or 80 ⁇ 20°C, or 90 ⁇ 20°C, or 100 ⁇ 20°C, or 110 ⁇ 20° C, or 120 ⁇ 20 °C, or 130 ⁇ 20 °C, or 140 ⁇ 20 °C, or 150 ⁇ 20 °C, or 160 ⁇ 20 °C.
  • the evaporation of the solvent component in step (d) preferably takes place at a pressure of at least 100 mbar; preferably at least 150 mbar, more preferably at least 200 mbar, even more preferably at least 250 mbar, most preferably at least 300 mbar, and in particular at least 350 mbar.
  • the evaporation of the solvent component in step (d) preferably takes place at a pressure of at most 900 mbar; preferably at most 850 mbar, more preferably at most 800 mbar, even more preferably at most 750 mbar, most preferably at most 700 mbar, and in particular at most 650 mbar.
  • the evaporation of the solvent component in step (d) preferably takes place at a pressure in the range from 100 mbar to 900 mbar; preferably in the range of 150 ⁇ 50 mbar, or 200 ⁇ 50 mbar, or 250 ⁇ 50 mbar, or 300 ⁇ 50 mbar, or 350 ⁇ 50 mbar, or 400 ⁇ 50 mbar, or 450 ⁇ 50 mbar, or 500 ⁇ 50 mbar , or 550 ⁇ 50 mbar, or 600 ⁇ 50 mbar, or 650 ⁇ 50 mbar, or 700 ⁇ 50 mbar, or 750 ⁇ 50 mbar, or 800 ⁇ 50 mbar, or 850 ⁇ 50 mbar.
  • Step (d) preferably comprises evaporating the solvent component until it is odorless.
  • the solvent component is preferably evaporated in step (d) down to a residual content of the solvent component of at most 100 ppmw; preferably at most 80 ppmw, more preferably at most 60 ppmw, even more preferably at most 40 ppmw, most preferably at most 20 ppmw, especially completely (0 ppmw).
  • At least part of the coated first surface side of the carrier film is irradiated in step (e) for at least 0.02 s; preferably at least 0.04 s, more preferably at least 0.06 s, even more preferably at least 0.08 s, most preferably at least 0.1 s, and especially at least 1.2 s.
  • At least part of the coated first surface side of the carrier film is irradiated in step (e) for at most 5.0 s; preferably at most 4.5 s, more preferably at most 4.0 s, even more preferably at most 3.5 s, most preferably at most 3.0 s, and especially at most 2.5 s.
  • the irradiation of at least part of the coated first surface side of the carrier film in step (e) preferably takes place in a period of 0.02 s to 5.0 s; preferably in a period of 0.06 ⁇ 0.04 s, or 0.08 ⁇ 0.04 s, or 0.1 ⁇ 0.04 s, or 0.12 ⁇ 0.04 s, or 0.14 ⁇ 0 .04 s, or 0.16 ⁇ 0.04 s, or 0.18 ⁇ 0.04 s, or 0.2 ⁇ 0.04 s, or 0.22 ⁇ 0.04 s, or 0.24 ⁇ 0 .04 s, or 0.26 ⁇ 0.04 s, or 0.28 ⁇ 0.04 s, or 0.30 ⁇ 0.04 s, or 0.32 ⁇ 0.04 s, or 0.34 ⁇ 0 .04 s, or 0.36 ⁇ 0.04 s, or 0.38 ⁇ 0.04 s, or 0.40 ⁇ 0.04 s, or 0.42 ⁇ 0.04 s, or 0.44 ⁇ 0 .04s, or 0.46 ⁇ 0.04s.
  • At least a part of the coated first surface side of the carrier film is irradiated in step (e) with electromagnetic radiation selected from electron beams and UV rays, preferably UV rays.
  • the irradiation of at least part of the coated first surface side of the carrier film in step (e) preferably takes place at a wavelength of at least 170 nm; preferably at least 190 nm, more preferably at least 210 nm, even more preferably at least 230 nm, most preferably at least 250 nm, and especially at least 270 nm.
  • At least part of the coated first surface side of the carrier film is irradiated in step (e) at a wavelength of at most 400 nm; preferred at most 380 nm, more preferably at most 360 nm, even more preferably at most 340 nm, most preferably at most 320 nm, and in particular at most 300 nm.
  • At least part of the coated first surface side of the carrier film is irradiated in step (e) at a wavelength in the range from 170 nm to 400 nm; preferably in the range of 190 ⁇ 20 nm, or 200 ⁇ 20 nm, or 210 ⁇ 20 nm, or 220 ⁇ 20 nm, or 230 ⁇ 20 nm, or 240 ⁇ 20 nm, or 250 ⁇ 20 nm, or 260 ⁇ 20 nm , or 270 ⁇ 20 nm, or 280 ⁇ 20 nm, or 290 ⁇ 20 nm, or 300 ⁇ 20 nm, or 310 ⁇ 20 nm, or 320 ⁇ 20 nm, or 330 ⁇ 20 nm, or 340 ⁇ 20 nm, or 350 ⁇ 20 nm, or 360 ⁇ 20 nm, or 370 ⁇ 20 nm, or 380 ⁇ 20 nm.
  • At least part of the coated first surface side of the carrier film is irradiated in step (e) with an energy of at least 3.0 eV; preferably at least 4.0 eV, more preferably at least 5.0 eV, even more preferably at least 6.0 eV, most preferably at least 7.0 eV, and especially at least 8.0 eV.
  • At least part of the coated first surface side of the carrier film is irradiated in step (e) with an energy of at most 12 eV; preferably at most 11 eV, more preferably at most 10 eV, still more preferably at most 9.0 eV, most preferably at most 8.0 eV, and especially at most 7.0 eV.
  • At least part of the coated first surface side of the carrier film is irradiated in step (e) with an energy in the range from 3.0 eV to 12 eV; preferably in the range of 5.0 ⁇ 2.0 eV, or 6.0 ⁇ 2.0 eV, or 7.0 ⁇ 2.0 eV, or 8.0 ⁇ 2.0 eV, or 9.0 ⁇ 2, 0 eV, or 10 ⁇ 2.0 eV.
  • the irradiation of at least part of the coated first surface side of the carrier film in step (e) preferably takes place under a protective gas atmosphere.
  • the protective gas atmosphere preferably comprises essentially nitrogen.
  • step (e) comprises irradiating at least 50% of the coated first surface side of the carrier film; preferably at least 60%, more preferably at least 70%, even more preferably at least 80%, most preferably at least 90%, and especially completely (100%).
  • Step (a) preferably additionally comprises the surface activation of at least the first surface side of the carrier film provided in (a).
  • the surface activation is preferably carried out by a pretreatment with plasma or corona.
  • a further aspect of the invention relates to a release film comprising
  • a carrier foil which has a first surface side and a second surface side;
  • release film wherein the first surface side of the carrier film is at least partially coated with the release coating; and wherein the release film is obtainable by the method according to the invention described above.
  • the microstructure of the release film obtainable by the process according to the invention differs from conventional release films.
  • the release film according to the invention has a more uniform coating with fewer defects.
  • the release film according to the invention also has a more even coating with fewer defects and, moreover, preferably a lower basis weight of the release coating.
  • a further aspect of the invention relates to the use of the release film according to the invention as described above as a removable release and/or protective film for adhesive hygiene articles.
  • a method for producing a release film by coating a carrier film with a release coating comprising the steps of: (a) providing the carrier film, the carrier film having a first surface side and having a second surface side; wherein the carrier film is preferably structured; (b) providing a coating composition which comprises a solvent component, preferably comprising ethyl acetate, propyl acetate, butyl acetate and/or n-propanol, and a UV-curable silicone system; (c) coating at least part of the first surface side of the carrier film provided in step (a) with the coating composition provided in step (b); (d) evaporating at least a portion of the solvent component; and (e) irradiating at least part of the first surface side of the carrier film coated in step (c) with UV radiation to cure the silicone system.
  • a solvent component preferably comprising ethyl acetate, propyl acetate, butyl acetate and/or n-propanol
  • the release coating is directly adjacent to the carrier film.
  • the separating film has a total layer thickness of at least 5.0 ⁇ m; preferably at least 6.0 pm, more preferably at least 7.0 pm, even more preferably at least 8.0 ⁇ m, most preferably at least 9.0 ⁇ m, and especially at least 10 ⁇ m.
  • the separating film has a total layer thickness of at most 50 ⁇ m; preferably at most 45 pm, more preferably at most 40 pm, even more preferably at most 35 pm, most preferably at most 30 pm, and especially at most 25 pm. 5.
  • the release film has a total layer thickness in the range from 5.0 ⁇ m to 50 ⁇ m; preferably in the range of 10 ⁇ 5.0 pm, or 12.5 ⁇ 5.0 pm, or 15 ⁇ 5.0 pm, or 17.5 ⁇ 5.0 pm, or 20 ⁇ 5.0 pm, or 22, 5 ⁇ 5.0 pm, or 25 ⁇ 5.0 pm, or 27.5 ⁇ 5.0 pm, or 30 ⁇ 5.0 pm, or 32.5 ⁇ 5.0 pm, or 35 ⁇ 5.0 pm , or 37.5 ⁇ 5.0 pm, or 40 ⁇ 5.0 pm, or 42.5 ⁇ 5.0 pm, or 45 ⁇ 5.0 pm. 6. The method according to any one of the above embodiments, wherein the second surface side of the release film is not coated. 7.
  • step (c) additionally comprises coating at least part of the second surface side of the carrier film provided in step (a) with the coating composition provided in step (b) or with another coating composition.
  • step (c) additionally comprises coating at least part of the second surface side of the carrier film provided in step (a) with the coating composition provided in step (b) or with another coating composition.
  • the first surface side and optionally the second surface side are each independently coated to at least 50%; preferably at least 60%, more preferably at least 70%, even more preferably at least 80%, most preferably at least 90%, and especially completely (100%).
  • the carrier film is structured. 11.
  • the carrier film is embossed. 12. The method according to any one of the preceding embodiments, wherein the first surface side of the carrier film is non-planar. 13. The method according to one of the above embodiments, wherein the first surface side of the carrier film has an embossed structure on at least part of its surface. 14. The method according to one of the above embodiments, wherein the first surface side and the second surface side of the carrier film each have an embossed structure on at least part of their surface. 15. The method of embodiment 13 or 14, wherein the embossing structure has a regular pattern. 16. The method according to one of the above embodiments, wherein the first surface side of the carrier film has embossed elevations. 17.
  • the embossed elevations have an average height of at least 0.1 mm, relative to the main plane of extension of the carrier film; preferably at least 0.2 mm, more preferably at least 0.3 mm, even more preferably at least 0.4 mm, most preferably at least 0.5 mm, and especially at least 0.6 mm. 18.
  • embossed bumps have an average height in the range of 0.1 to 5.0 mm relative to the Main extension plane of the carrier film; preferably in the range of 0.6 ⁇ 0.5 mm, or 0.8 ⁇ 0.5 mm, or 1.0 ⁇ 0.5 mm, or 1.2 ⁇ 0.5 mm, or 1.4 ⁇ 0, 5 mm, or, l.6 ⁇ 0.5 mm, or l.8 ⁇ 0.5 mm, or 2.0 ⁇ 0.5 mm, or 2.2 ⁇ 0.5 mm, or 2.4 ⁇ 0 .5 mm, or 2.6 ⁇ 0.5 mm, or 2.8 ⁇ 0.5 mm, or 3.0 ⁇ 0.5 mm, or 3.2 ⁇ 0.5 mm, or 3.4 ⁇ 0 .5 mm, or 3.6 ⁇ 0.5 mm, or 3.8 ⁇ 0.5 mm, or 4.0 ⁇ 0.5 mm, or 4.2 ⁇ 0.5 mm, or 4.4 ⁇ 0 .5mm.
  • the first surface side of the carrier film has an average peak-to-valley height R z according to DIN EN ISO 4287 of at least 5.0 ⁇ m; preferably at least 7.0 pm, more preferably at least 9.0 pm, even more preferably at least 11 pm, most preferably at least 13 pm, and especially at least 15 pm. 21.
  • the first surface side of the carrier film has an average peak-to-valley height R z according to DIN EN ISO 4287 of at most 100 ⁇ m; preferably at most 90 ⁇ m, more preferably at most 80 ⁇ m, even more preferably at most 70 ⁇ m, most preferably at most 60 ⁇ m, and especially at most 50 ⁇ m. 22.
  • the first surface side of the carrier film has an average peak-to-valley height R z according to DIN EN ISO 4287 in the range from 5.0 to 100 ⁇ m; preferably in the range of 10 ⁇ 5.0 pm, or 12.5 ⁇ 5.0 pm, or 15 ⁇ 5.0 pm, or 17.5 ⁇ 5.0 pm, or 20 ⁇ 5.0 pm, or 22, 5 ⁇ 5.0 pm, or 25 ⁇ 5.0 pm, or 27.5 ⁇ 5.0 pm, or 30 ⁇ 5.0 pm, or 32.5 ⁇ 5.0 pm, or 35 ⁇ 5.0 pm , or 37.5 ⁇ 5.0 pm, or 40 ⁇ 5.0 pm, or 42.5 ⁇ 5.0 pm, or 45 ⁇ 5.0 pm, or 47.5 ⁇ 5.0 pm, or 50 ⁇ 5.0 pm, or 52.5 ⁇ 5.0 pm, or 55 ⁇ 5.0 pm, or 57.5 ⁇ 5.0 pm, or 60 ⁇ 5.0 pm, or 62.5 ⁇ 5.0 pm , or 65 ⁇ 5.0 pm, or 67.5 ⁇ 5.0 pm, or 70 ⁇ 5.0 pm, or 72.5 ⁇ 5.0 pm, or 75 ⁇ 5.0 pm, or 77.5 ⁇ 5.0 pm, or 80 ⁇ 5.0 pm, or 82.5 ⁇ 5.0
  • the carrier film is single-layer.
  • the carrier film is multilayer.
  • the multi-layer carrier film consists of a total of two, three, four, five, six, seven, eight or nine layers.
  • the multilayer carrier film has a symmetrical layer sequence.
  • the multilayer carrier film comprises a first skin layer forming the first surface side and a second skin layer forming the second surface side. 28.
  • the multilayer carrier film additionally comprises at least one intermediate layer, wherein the at least one intermediate layer is arranged between the first outer layer and the second outer layer.
  • the carrier film (i) is based on polyolefin or comprises at least one layer which is based on polyolefin; (ii) based on a nonwoven or comprising at least one layer which is based on a nonwoven; or (iii) paper based or comprising at least one layer which is paper based.
  • the at least one polyolefin-based layer forms the first surface side of the carrier film.
  • polyolefin is selected from the group consisting of - thermoplastic olefins; and/or - olefin homo- or copolymers of ⁇ , ⁇ -unsaturated olefins having from 2 to 10 carbon atoms; preferably selected from the group consisting of polyethylene, polypropylene, polybutylene, polyisobutylene, copolymers and/or mixtures of at least two of the polymers mentioned.
  • the carrier film is based on a polyolefin mixture, or wherein the carrier film comprises at least one layer which is based on a polyolefin mixture.
  • the polyolefin blend comprises at least two polyolefins that are incompatible with one another.
  • the carrier film comprises an additive or wherein the carrier film comprises at least one layer which comprises an additive, wherein the additive is selected from the group consisting of plasticizers; lubricants; emulsifiers; pigments; rheology additives; catalysts; flow control means; optical brighteners; light stabilizers; antioxidants; clarifying agents such as substituted or unsubstituted bisbenzylidene sorbitols; flame retardants; antistatic agents; UV absorbers such as benzoxazinones; propellants; and thiosynergists such as thiodipropionic acid dilauryl esters or thiodipropionic acid distearyl esters.
  • the release coating has a basis weight of at least 0.1 g/m 2 ; preferably at least 0.15 g/m 2 , more preferably at least 0.2 g/m 2 , even more preferably at least 0.25 g/m 2 , most preferably at least 0.3 g/m 2 , and especially at least 0.35 g/m 2 m2 . 36.
  • the release coating has a basis weight of at most 1.0 g/m 2 ; preferably at most 0.9 g/m 2 , more preferably at most 0.8 g/m 2 , even more preferably at most 0.7 g/m 2 , most preferably at most 0.6 g/m 2 , and in particular at most 0.5 g/m m2 . 37.
  • the release coating has a basis weight in the range of 0.1 g/m 2 to 1.0 g/m 2 ; preferably in the range of 0.3 ⁇ 0.2 g/m 2 , or 0.35 ⁇ 0.2 g/m 2 , or 0.4 ⁇ 0.2 g/m 2 , or 0.45 ⁇ 0.2 g/m 2 g/m 2 , or 0.5 ⁇ 0.2 g/m 2 , or 0.55 ⁇ 0.2 g/m 2 , or 0.6 ⁇ 0.2 g/m 2 , or 0.65 ⁇ 0 .2 g/m 2 , or 0.7 ⁇ 0.2 g/m 2 , or 0.75 ⁇ 0.2 g/m 2 , or 0.8 ⁇ 0.2 g/m 2 . 38.
  • the release coating has a layer thickness of at least 1.0 ⁇ m; preferably at least 1.5 pm, more preferably at least 2.0 pm, even more preferably at least 2.5 pm, most preferably at least 3.0 pm, and especially at least 3.5 pm. 39. The method according to any one of the above embodiments, wherein the release coating has a layer thickness of at most 4.0 ⁇ m; preferably at most 3.5 pm, more preferably at most 3.0 pm, even more preferably at most 2.5 pm, and especially at most 2.0 pm. 40.
  • the release coating has a layer thickness in the range from 1.0 to 4.0 ⁇ m; preferably in the range of 1.5 ⁇ 0.5 pm, or 2.0 ⁇ 0.5 pm, or 2.5 ⁇ 0.5 pm, or 3.0 ⁇ 0.5 pm, or 3.5 ⁇ 0, 5 p.m. 41.
  • the release coating is based on at least one cured polysiloxane which is selected from the group consisting of addition-crosslinked, preferably metal-catalyzed addition-crosslinked, condensation-crosslinked, free-radically crosslinked and/or cationically crosslinked polysiloxanes. 42.
  • the release coating is based on at least one cured polysiloxane selected from the group consisting of polydialkylsiloxanes, preferably polydimethylsiloxanes, and polyalkylarylsiloxanes; preferably polymethylphenylsiloxanes.
  • the UV-curable silicone system is free-radically or cationically-curable.
  • UV-curable silicone system is based on at least one UV-curable polysiloxane, which is selected from the group consisting of addition-crosslinking, preferably metal-catalyzed addition-crosslinking, condensation-crosslinking, free-radically crosslinking, and/or or cationically crosslinking polysiloxanes.
  • the UV-curable silicone system is based on at least one UV-curable polysiloxane selected from the group consisting of polydialkylsiloxanes, preferably polydimethylsiloxanes, and polyalkylarylsiloxanes; preferably polymethylphenylsiloxanes.
  • the level of the UV-curable silicone system is at least 10% by weight based on the total weight of the coating composition; preferably at least 20% by weight, more preferably at least 30% by weight, even more preferably at least 40% by weight, most preferably at least 50% by weight, and especially at least 60% by weight. 47.
  • the content of the UV-curable silicone system is at most 90% by weight based on the total weight of the coating composition; preferably at most 80% by weight, more preferably at most 70% by weight, even more preferably at most 60% by weight, most preferably at most 50% by weight, and especially at most 40% by weight. 48.
  • the content of the UV radiation curable silicone system is in the range of 10 to 90% by weight based on the total weight of the coating composition; preferably in the range of 20 ⁇ 10% by weight, or 25 ⁇ 10% by weight, or 30 ⁇ 10% by weight, or 35 ⁇ 10% by weight, or 40 ⁇ 10% by weight, or 45 ⁇ 10% by weight, or 50 ⁇ 10% by weight, or 55 ⁇ 10% by weight, or 60 ⁇ 10% by weight, or 65 ⁇ 10% by weight, or 70 ⁇ 10% by weight %, or 75 ⁇ 10% by weight, or 80 ⁇ 10% by weight. 49.
  • the solvent component comprises or consists of one or more Ci-6-alkyl acid Ci-6-alkyl esters. 50. The method of any preceding embodiment, wherein the solvent component comprises or consists of a solvent having a dielectric constant of at least 2.40 F/m; preferably at least 3.00 f/m, more preferably at least 3.50 f/m, even more preferably at least 4.00 f/m, most preferably at least 4.50 f/m, and especially at least 5.00 f/m. 51.
  • the solvent component comprises or consists of a solvent having a dielectric constant of no more than 16.00 F/m; preferably at most 14.40 f/m, more preferably at most 12.40 f/m, even more preferably at most 10.40 f/m, most preferably at most 8.40 f/m, and in particular at most 6.40 f/m. 52.
  • the solvent component comprises or consists of a solvent having a dielectric constant in the range of 2.40 F/m to 16.00 F/m; preferably in the range of 4.50 ⁇ 2.00 f/m, or 5.00 ⁇ 2.00 f/m, or 5.50 ⁇ 2.00 f/m, or 6.00 ⁇ 2.00 f/m , or 6.50 ⁇ 2.00 f/m, or 7.00 ⁇ 2.00 f/m, or 7.50 ⁇ 2.00 f/m, or 8.00 ⁇ 2.00 f/m, or 8.50 ⁇ 2.00 f/m, or 9.00 ⁇ 2.00 f/m, or 9.50 ⁇ 2.00 f/m, or 10.00 ⁇ 2.00 f/m, or 10, 50 ⁇ 2.00 f/m, or ll.00 ⁇ 2.00 f/m, or ll.50 ⁇ 2.00 f/m, or 12.00 ⁇ 2.00 f/m, or 12.50 ⁇ 2.00 f/m, or 13.00 ⁇ 2.00 f/m, or 13.
  • the solvent component comprises or consists of a solvent which has a boiling point of at least 70° C.; preferably at least 80°C, more preferably at least 90°C, even more preferably at least 100°C, most preferably at least 110°C, and especially at least 120°C. 54.
  • the solvent component comprises or consists of a solvent which has a boiling point of at most 135° C.; preferably at most 125°C, more preferably at most 115°C, even more preferably at most 105°C, most preferably at most 95°C, and especially at most 85°C. 55.
  • the solvent component comprises or consists of a solvent which has a boiling point in the range from 70° C. to 135° C.; preferably in the range of 80 ⁇ 10°C, or 85 ⁇ 10°C, or 90 ⁇ 10°C, or 95 ⁇ 10°C, or 100 ⁇ 10°C, or 105 ⁇ 10°C, or 110 ⁇ 10° C, or 115 ⁇ 10 °C, or 120 ⁇ 10 °C, or 125 ⁇ 10 °C. 56.
  • the solvent component comprises or consists of a solvent which has a dipole moment of at least 1.75 D; preferably at least 1.77 D, more preferably at least 1.79 D, even more preferably at least 1.81 D, most preferably at least 1.83 D, and in particular at least 1.85 D. 57.
  • the Solvent component comprises or consists of a solvent which has a dipole moment of at most 1.90 D; preferably at most 1.88 D, more preferably at most 1.86 D, even more preferably at most 1.84 D, most preferably at most 1.82 D, and in particular at most 1.80 D. 58.
  • the solvent component comprises or consists of a solvent having a dipole moment in the range of 1.75 D to 1.90 D; preferably in the range of 1.75 D to 1.90 D; preferably in the range of 1.77 ⁇ 0.02 D, or 1.78 ⁇ 0.02 D, or 1.79 ⁇ 0.02 D, or 1.80 ⁇ 0.02 D, or 1.81 ⁇ 0, 05 D, or l.82 ⁇ 0.02 D, or l.83 ⁇ 0.05 D, or l.84 ⁇ 0.02 D, or l.85 ⁇ 0.02 D, or l.86 ⁇ 0, 02 D, or 1.87 ⁇ 0.02 D, or 1.88 ⁇ 0.02 D. 59.
  • the solvent component comprises or consists of a solvent which has an evaporation number of at least 2, 9 has; preferably at least 4.0, more preferably at least 5.0, even more preferably at least 6.0, most preferably at least 7.0, and especially at least 8.0.
  • the solvent component comprises or consists of a solvent which has an evaporation number of at most 12; preferably at most 12, more preferably at most 10, even more preferably at most 9.0, most preferably at most 8.0, and especially at most 7.0. 61.
  • the solvent component comprises or consists of a solvent having an evaporation number in the range of 2.9 to 11; preferably in the range of 4.0 ⁇ 1.0, or 4.5 ⁇ 1.0, or 5.0 ⁇ 1.0, or 5.5 ⁇ 1.0, or 6.0 ⁇ 1.0, or 6 .5 ⁇ l.0, or 7.0 ⁇ l.0, or 7.5 ⁇ l.0, or 8.0 ⁇ l.0, or 8.5 ⁇ l.0, or 9.0 ⁇ l, 0, or 9.5 ⁇ l.0, or 10 ⁇ l.0, or 10.5 ⁇ l.0, or 1 l ⁇ l.0. 62.
  • the solvent component is selected from the group consisting of ethyl acetate, propyl acetate, butyl acetate and mixtures thereof.
  • the solvent component comprises or consists of ethyl acetate.
  • the solvent component comprises or consists of propyl acetate; preferably n-propyl acetate, isopropyl acetate or a mixture thereof. 65.
  • the solvent component comprises or consists of butyl acetate; preferably n-butyl acetate, isobutyl acetate, sec-butyl acetate, tert-butyl acetate, or any mixtures thereof.
  • the content of the solvent component is at least 10% by weight based on the total weight of the coating composition; preferably at least 20% by weight, more preferably at least 30% by weight, even more preferably at least 40% by weight, most preferably at least 50% by weight, and especially at least 60% by weight. 67.
  • the content of the solvent component is at most 90% by weight based on the total weight of the coating composition; preferably at most 80% by weight, more preferably at most 70% by weight, even more preferably at most 60% by weight, most preferably at most 50% by weight, and especially at most 40% by weight. 68.
  • the content of the solvent component is in the range of 10 to 90% by weight based on the total weight of the coating composition; preferably in the range of 20 ⁇ 10% by weight, or 25 ⁇ 10% by weight, or 30 ⁇ 10% by weight, or 35 ⁇ 10% by weight, or 40 ⁇ 10% by weight, or 45 ⁇ 10% by weight, or 50 ⁇ 10% by weight, or 55 ⁇ 10% by weight, or 60 ⁇ 10% by weight, or 65 ⁇ 10% by weight, or 70 ⁇ 10% by weight %, or 75 ⁇ 10% by weight, or 80 ⁇ 10% by weight. 69.
  • the coating composition has a viscosity of at least 1.0 mm 2 /s; preferably at least 1.5 mm 2 /s, more preferably at least 2.0 mm 2 /s, even more preferably at least 2.5 mm 2 /s, most preferably at least 3.0 mm 2 /s, and especially at least 3.5 mm 2 /s. 70.
  • the coating composition has a viscosity of at most 100 mm 2 /s; preferably at most 90 mm 2 /s, more preferably at most 80 mm 2 /s, even more preferably at most 70 mm 2 /s, most preferably 60 mm 2 /s, and in particular at most 50 mm 2 /s. 71.
  • the coating composition has a viscosity in the range of 1.0 to 100 mm 2 /s; preferably in the range of 15 ⁇ 10 mm 2 /s, or 20 ⁇ 10 mm 2 /s, or 25 ⁇ 10 mm 2 /s, or 30 ⁇ 10 mm 2 /s, or 35 ⁇ 10 mm 2 /s, or 40 ⁇ 10 mm 2 /s, or 45 ⁇ 10 mm 2 /s, or 50 ⁇ 10 mm 2 /s, or 55 ⁇ 10 mm 2 /s, or 60 ⁇ 10 mm 2 /s, or 65 ⁇ 10 mm 2 / s, or 70 ⁇ 10 mm 2 /s, or 75 ⁇ 10 mm 2 /s, or 80 ⁇ 10 mm 2 /s, or 85 ⁇ 10 mm 2 /s, or 90 ⁇ 10 mm 2 /s.
  • the viscosity of the coating composition is determined using a measuring cup in accordance with DIN EN ISO 2431. 73. The method of embodiment 74, wherein a measuring cup with an outflow opening of 6 mm is used; preferably 5 mm, more preferably 4 mm and most preferably 3 mm. 74. The method of any preceding embodiment, wherein the coating composition includes a catalyst that catalyzes the curing of the UV radiation curable polysiloxane. 75.
  • step (c) comprises cooling the coating composition in the facility.
  • step (c) takes place at a temperature of at least 5.0 °C; preferably at least 7.0°C, more preferably at least 9.0°C, even more preferably at least 11°C, most preferably at least 13°C, and especially at least 15°C. 78.
  • step (c) takes place at a temperature of at most 20 °C; preferably at most 18°C, more preferably at most 16°C, even more preferably at most 14°C, most preferably at most 12°C, and especially at most 10°C. 79.
  • step (c) takes place at a temperature in the range of 5.0 °C to 20 °C; preferably in the range of 6.0 ⁇ 2.0°C, or 7.0 ⁇ 2.0°C, or 8.0 ⁇ 2.0°C, or 9.0 ⁇ 2.0°C, or 10 ⁇ 2.0 °C, or ll ⁇ 2.0 °C, or 12 ⁇ 2.0 °C, or 13 ⁇ 2.0 °C, or 14 ⁇ 2.0 °C, or 15 ⁇ 2.0 °C , or 16 ⁇ 2.0 °C, or 17 ⁇ 2.0 °C, or 18 ⁇ 2.0 °C. 80.
  • step (c) comprises applying the coating composition to at least a portion of the first surface side of the carrier film using a flexographic printing process.
  • step (c) comprises applying the coating composition to at least part of the first surface side of the carrier film using an anilox roller.
  • step (c) comprises coating at least 50% of the first surface side; preferably at least 60%, more preferably at least 70%, even more preferably at least 80%, most preferably at least 90%, and especially completely (100%).
  • the evaporation of the solvent component in step (d) takes place at a temperature of at least 30 °C; preferably at least 40°C, more preferably at least 50°C, even more preferably at least 60°C, most preferably at least 70°C, and especially at least 80°C. 84.
  • step (d) takes place at a temperature in a range from 30°C to 180°C; preferably in the range of 50 ⁇ 20°C, or 60 ⁇ 20°C, or 70 ⁇ 20°C, or 80 ⁇ 20°C, or 90 ⁇ 20°C, or 100 ⁇ 20°C, or 110 ⁇ 20° C, or 120 ⁇ 20 °C, or 130 ⁇ 20 °C, or 140 ⁇ 20 °C, or 150 ⁇ 20 °C, or 160 ⁇ 20 °C. 86.
  • the evaporation of the solvent component in step (d) takes place at a pressure of at least 100 mbar; preferably at least 150 mbar, more preferably at least 200 mbar, even more preferably at least 250 mbar, most preferably at least 300 mbar, and in particular at least 350 mbar.
  • the evaporation of the solvent component in step (d) takes place at a pressure of at most 900 mbar; preferably at most 850 mbar, more preferably at most 800 mbar, even more preferably at most 750 mbar, most preferably at most 700 mbar, and in particular at most 650 mbar.
  • step (d) wherein the evaporation of the solvent component in step (d) takes place at a pressure in the range from 100 mbar to 900 mbar; preferably in the range of 150 ⁇ 50 mbar, or 200 ⁇ 50 mbar, or 250 ⁇ 50 mbar, or 300 ⁇ 50 mbar, or 350 ⁇ 50 mbar, or 400 ⁇ 50 mbar, or 450 ⁇ 50 mbar, or 500 ⁇ 50 mbar , or 550 ⁇ 50 mbar, or 600 ⁇ 50 mbar, or 650 ⁇ 50 mbar, or 700 ⁇ 50 mbar, or 750 ⁇ 50 mbar, or 800 ⁇ 50 mbar, or 850 ⁇ 50 mbar.
  • a pressure in the range from 100 mbar to 900 mbar preferably in the range of 150 ⁇ 50 mbar, or 200 ⁇ 50 mbar, or 250 ⁇ 50 mbar, or 300 ⁇ 50 mbar, or 350 ⁇ 50 mbar, or 400 ⁇ 50 mbar, or 450 ⁇ 50 mbar, or
  • step (d) comprises evaporating the solvent component until it is odorless.
  • step (d) comprises evaporating the solvent component until it is odorless.
  • step (d) comprises evaporating the solvent component until it is odorless.
  • step (d) comprises evaporating the solvent component until it is odorless.
  • step (d) comprises evaporating the solvent component until it is odorless.
  • step (d) comprises evaporating the solvent component until it is odorless.
  • the evaporation of the solvent component in step (d) takes place down to a residual content of the solvent component of at most 100 ppmw; preferably at most 80 ppmw, more preferably at most 60 ppmw, even more preferably at most 40 ppmw, most preferably at most 20 ppmw, especially completely (0 ppmw).
  • step (e) wherein the irradiation of at least part of the coated first surface side of the carrier film in step (e) takes place at a wavelength of at least 170 nm; preferably at least 190 nm, more preferably at least 210 nm, even more preferably at least 230 nm, most preferably at least 250 nm, and in particular at least 270 nm. 92.
  • step (e) wherein the irradiation of at least part of the coated first surface side of the carrier film in step (e) is carried out at a wavelength of at most 400 nm; preferably at most 380 nm, more preferably at most 360 nm, even more preferably at most 340 nm, most preferably at most 320 nm, and in particular at most 300 nm in step (e) occurs at a wavelength in the range of 170 nm to 400 nm; preferably in the range of 190 ⁇ 20 nm, or 200 ⁇ 20 nm, or 210 ⁇ 20 nm, or 220 ⁇ 20 nm, or 230 ⁇ 20 nm, or 240 ⁇ 20 nm, or 250 ⁇ 20 nm, or 260 ⁇ 20 nm , or 270 ⁇ 20 nm, or 280 ⁇ 20 nm, or 290 ⁇ 20 nm, or 300 ⁇ 20 nm, or 310 ⁇ 20 nm, or 320
  • step (e) wherein the irradiation of at least part of the coated first surface side of the carrier film in step (e) with a energy of at least 3.0 eV occurs; preferably at least 4.0 eV, more preferably at least 5.0 eV, even more preferably at least 6.0 eV, most preferably at least 7.0 eV, and especially at least 8.0 eV. 95.
  • step (e) wherein the irradiation of at least part of the coated first surface side of the carrier film in step (e) takes place with an energy of at most 12 eV; preferably at most 11 eV, more preferably at most 10 eV, still more preferably at most 9.0 eV, most preferably at most 8.0 eV, and especially at most 7.0 eV. 96.
  • step (e) comprises irradiating at least 50% of the coated first surface side of the carrier film; preferably at least 60%, more preferably at least 70%, even more preferably at least 80%, most preferably at least 90%, and especially completely (100%).
  • step (a) additionally comprises the surface activation of at least the first surface side of the carrier film provided in (a). 101. The method according to embodiment 100, wherein the surface activation is carried out by a pretreatment with plasma or corona. 102.
  • a release film comprising - a carrier film having a first surface side and a second surface side; and - a release coating; wherein the first surface side of the carrier film is at least partially coated with the release coating; and wherein the release film is obtainable by the method according to any one of the preceding claims.
  • a separating film according to embodiment 102 as a detachable separating and/or protective film for adhesive hygiene articles.
  • release liners were prepared by coating backing liners with a release coating.
  • the viscosity of the coating composition and the solvent contained in the coating composition were varied and the influence on the release force (TC) of the release films was examined.
  • the scoop volume of the anilox roller used to apply the coating composition was varied.
  • the components of the coating composition are summarized in the following table:
  • the release force (TC) of the release films was determined according to FINAT 10 at a peel speed of 300 mm/min compared to a test adhesive tape TESA® 7475 (or 7476 for example 1-3) from Beiersdorf. Three tests were carried out at the inlet and at the end of each release film.
  • Figure 1 shows the separation force (TK) for example 1-1, Figure 2 for example 1-2, Figure 3 for example 1-3, Figure 4 for example 1-4, Figure 5 for example 1-5, Figure 6 for example 1-6 and Figure 7 for example 1-7.
  • Figures 1A, 2A, 3A, 4A, 5A, 6A and 7A The results of the tests at the entrance ( Figures 1A, 2A, 3A, 4A, 5A, 6A and 7A) and at the end ( Figures 1B, 2B, 3B, 4B, 5B, 6B and 7B) of each release film are shown.
  • separating forces determined in the individual measurements for TK1, TK2 and TK3 deviate significantly more from one another at higher viscosities than at lower viscosities (e.g. 1-1: 13.5, 22.6 and 2.5 (G 2 18.20) vs 1-6: 7.7, 7.6 and 7.3 (o 2 0.03)).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé de production d'un film antiadhésif par revêtement d'un film porteur avec un revêtement antiadhésif, ledit procédé comprenant les étapes suivantes : (a) fourniture du film porteur, le film porteur ayant un premier côté de surface et un deuxième côté de surface ; le film porteur étant de préférence structuré ; (b) fourniture d'une composition de revêtement qui comprend un composant solvant, comprenant de préférence de l'acétate d'éthyle, de l'acétate de propyle, de l'acétate de butyle et/ou du n-propanol, ainsi qu'un système de silicone qui est durcissable par rayonnement UV ; (c) revêtement d'au moins une partie du premier côté de surface du film porteur fourni à l'étape (a) avec la composition de revêtement fournie à l'étape (b) ; (d) évaporation d'au moins une partie du composant solvant ; et (e) irradiation d'au moins une partie du premier côté de surface du film porteur, qui a été revêtu à l'étape (c), avec un rayonnement UV pour durcir le système de silicone.
EP21810966.8A 2020-11-10 2021-11-10 Film antiadhésif ayant un revêtement antiadhésif mince Pending EP4244301A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020214073.1A DE102020214073A1 (de) 2020-11-10 2020-11-10 Verfahren zur Herstellung einer strukturierten Trennfolie
DE102021119043 2021-07-22
PCT/EP2021/081296 WO2022101299A1 (fr) 2020-11-10 2021-11-10 Film antiadhésif ayant un revêtement antiadhésif mince

Publications (1)

Publication Number Publication Date
EP4244301A1 true EP4244301A1 (fr) 2023-09-20

Family

ID=78709418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21810966.8A Pending EP4244301A1 (fr) 2020-11-10 2021-11-10 Film antiadhésif ayant un revêtement antiadhésif mince

Country Status (6)

Country Link
US (1) US20230357544A1 (fr)
EP (1) EP4244301A1 (fr)
CA (1) CA3189746A1 (fr)
CO (1) CO2023005609A2 (fr)
MX (1) MX2023005469A (fr)
WO (1) WO2022101299A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230357544A1 (en) 2020-11-10 2023-11-09 Loparex Germany Gmbh & Co. Kg Release film having a thin release coating
DE102024119437A1 (de) 2024-07-09 2026-01-15 Loparex Germany Gmbh & Co. Kg Recyclingfähige Polyethylenfolie zur Verpackung von Hygieneartikeln

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019141792A1 (fr) 2018-01-22 2019-07-25 Infiana Germany Gmbh & Co. Kg Film de séparation imprimé et muni d'un revêtement
WO2022101299A1 (fr) 2020-11-10 2022-05-19 Loparex Germany Gmbh & Co. Kg Film antiadhésif ayant un revêtement antiadhésif mince

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299945B1 (en) 1999-01-28 2001-10-09 Loparex Inc. Processes for making release liners
US7622159B2 (en) * 1999-01-28 2009-11-24 Loparex, Inc. Release liners and processes for making the same
FR2801601B1 (fr) * 1999-11-26 2003-04-25 Rhodia Chimie Sa Complexe silicone reticulable thermiquement / adhesif dont l'interface possede une force de decollement modulable
US20020009486A1 (en) 1999-11-30 2002-01-24 3M Innovative Properties Company Therapeutic agent delivery incorporating reflective optical film
US20020176973A1 (en) 2001-05-23 2002-11-28 Loparex, Inc. Laminates including cellulosic materials and processes for making and usng the same
AU2002321342A1 (en) 2002-07-18 2004-02-09 Loparex Oy A manufacturing substrate and a method for forming it
DE102005001616A1 (de) 2005-01-12 2006-07-20 Huhtamaki Forchheim Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Antistatische Oberflächenausrüstung
US8367212B2 (en) * 2007-01-18 2013-02-05 Shin-Etsu Chemical Co., Ltd. Ultraviolet-curable silicone composition
US9175141B2 (en) * 2010-08-05 2015-11-03 Biofilm Ip, Llc Cyclosiloxane-substituted polysiloxane compounds, compositions containing the compounds and methods of use thereof
KR101902161B1 (ko) * 2010-08-31 2018-10-01 인피아나 게르마니 게엠베하 운트 코. 카게 경화된 폴리실록산 코팅을 갖는 중합체성 필름의 제조 공정
CN104685013A (zh) 2012-10-09 2015-06-03 道康宁东丽株式会社 可固化有机聚硅氧烷组合物、具有由所述组合物形成的固化层的片状制品以及层合材料
DE102015118991A1 (de) 2015-11-05 2017-05-11 Ev Group E. Thallner Gmbh Verfahren zur Behandlung von Millimeter- und/oder Mikrometer- und/oder Nanometerstrukturen an einer Oberfläche eines Substrats
WO2018106830A1 (fr) 2016-12-06 2018-06-14 Loparex Llc Procédés et appareils de revêtement de pellicules de protection
JP7135509B2 (ja) 2018-01-18 2022-09-13 王子ホールディングス株式会社 両面粘着シートおよび剥離シート付き両面粘着シート
EP3884003B1 (fr) * 2018-11-23 2024-08-21 BASF Coatings GmbH Procédé de revêtement en moule (imc) avec pigmentation et démoulage automatique pour revêtir des substrats

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019141792A1 (fr) 2018-01-22 2019-07-25 Infiana Germany Gmbh & Co. Kg Film de séparation imprimé et muni d'un revêtement
WO2022101299A1 (fr) 2020-11-10 2022-05-19 Loparex Germany Gmbh & Co. Kg Film antiadhésif ayant un revêtement antiadhésif mince

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "tego rc silicones practical guide ", EVONIK INDUSTRIES, 1 July 2015 (2015-07-01), pages 1 - 36, XP055957937
See also references of WO2022101299A1

Also Published As

Publication number Publication date
CA3189746A1 (fr) 2022-05-19
US20230357544A1 (en) 2023-11-09
MX2023005469A (es) 2023-05-22
WO2022101299A1 (fr) 2022-05-19
CO2023005609A2 (es) 2023-05-19

Similar Documents

Publication Publication Date Title
DE2945154C2 (de) Druckempfindliches Klebeprodukt und Verfahren zu seiner Herstellung
DE69625931T2 (de) Gemischtes druckempfindliches klebemittel
DE60313969T2 (de) Beschichtetes Blattmaterial und daraus hergestellte Verpackung
DE69836353T2 (de) Verfahren zur Herstellung einer im wesentlichen kontinuierlichen, nicht porösen thermoplastischen Beschichtung aud daraus geformte Gegenstände
DE69527082T2 (de) Vakuumunterstützte anwendung einer dünnen dampfdurchlässigen, flüssigkeitsundurchlässigen beschichtung auf durchlochten substraten und daraus hergestellte artikel
EP0937761B1 (fr) Ruban adhésif n'émettant pas de buée
EP2867321B1 (fr) Composition adhésive pour le collage de clichés sur des cylindres d'impression flexographique
EP3437853B1 (fr) Feuilles en polyester pelables, leur procédé de fabrication et leur utilisation
DE102007008889A1 (de) Verfahren zur Erzeugung von nano- und/oder mikrostrukturierten Oberflächen in einer klebenden, insbesondere selbstklebenden Schicht
WO2008095653A1 (fr) Procédé pour réaliser une passivation le long du bord de bandes autocollantes
EP3743480B1 (fr) Film de séparation imprimé et muni d'un revêtement
EP2730626A1 (fr) Adhésif thermofusible de polyoléfine réactif ayant une faible adhérence aux outils en aluminium non revêtus et son utilisation en tant que masque thermofusible
WO2022101299A1 (fr) Film antiadhésif ayant un revêtement antiadhésif mince
DE4032776C2 (fr)
DE10163545A1 (de) Verfahren zur Vernetzung und Polymerisation von bahnförmigem Material mittels Elektronenstrahlen und/oder UV-Strahlen
EP2611609A1 (fr) Procédé de fabrication d'un feuille plastique comportant un revêtement de polysiloxane durci
DE2830536A1 (de) Klebeband
WO2016071232A1 (fr) Procédé de traitement par plasma indirect de couches anti-adhérentes
EP1283252A2 (fr) Bande adhésive pour emballage
EP2089488B1 (fr) Matériau support notamment pour un ruban adhésif à support textile, ce support textile étant revêtu par extrusion d'un film plastique
EP1326937A1 (fr) Pellicule de protection de surface pour surfaces d'automobiles fraichement peintes contenant une colle a plusieurs composants
DE10018442A1 (de) Biaxial orientierte Polyolefinfolie mit verminderter Blockneigung gegen Kaltsiegelmassen
EP1314487A2 (fr) Procédé de revêtement
DE102020214073A1 (de) Verfahren zur Herstellung einer strukturierten Trennfolie
EP1404773A1 (fr) Ruban adhesif destin en particulier l'emballage

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230110

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

17Q First examination report despatched

Effective date: 20250807