WO2009104865A2 - Film antiadhésif - Google Patents

Film antiadhésif Download PDF

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Publication number
WO2009104865A2
WO2009104865A2 PCT/KR2008/007715 KR2008007715W WO2009104865A2 WO 2009104865 A2 WO2009104865 A2 WO 2009104865A2 KR 2008007715 W KR2008007715 W KR 2008007715W WO 2009104865 A2 WO2009104865 A2 WO 2009104865A2
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WO
WIPO (PCT)
Prior art keywords
film
release
coating solution
coating
prepared
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.)
Ceased
Application number
PCT/KR2008/007715
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English (en)
Other versions
WO2009104865A3 (fr
Inventor
Hong Hee Jung
Han Soo Park
Sang-Hyun Baek
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.)
Kolon Industries Inc
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Kolon Industries Inc
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Filing date
Publication date
Application filed by Kolon Industries Inc filed Critical Kolon Industries Inc
Priority to CN2008801275998A priority Critical patent/CN101965377B/zh
Priority to JP2010540582A priority patent/JP5735278B2/ja
Publication of WO2009104865A2 publication Critical patent/WO2009104865A2/fr
Publication of WO2009104865A3 publication Critical patent/WO2009104865A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/72—Cured, e.g. vulcanised, cross-linked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/748—Releasability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2483/00—Characterised by the use of 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; Derivatives of such polymers

Definitions

  • the present invention relates to a release film, and more specifically, to a release film that improves adhesion to substrate (smear/rub-off) between a release coating layer using a silicon-based resin and a polyester film.
  • a release film gives release performance by forming a cured coating of silicon composition on a base surface in order to prevent adhesion or sticking between a base such as paper or plastic film, etc. and a sticky material.
  • a base such as paper or plastic film, etc.
  • a sticky material When the base surface is the plastic film, it is generally referred to as the release film.
  • the release film temporally protects a sticky adhesive side of an adhesive article from contamination caused by dusts, fragments, moisture, and other contaminants until a use of a label is prepared, for example. Generally, the release film is separated from the adhesive side just before the adhesive article is used.
  • the release film is formed with a release coating layer that can give the adhesion to substrate (smear/rub-oft) with the base while giving the release performance to the base.
  • the release coating layer mainly includes silicon release agent.
  • the performance of the release film mainly depends on an adhesive that forms an adhesive layer of the adhesive article or a silicon release agent that is used for the release coating layer, etc.
  • the release coating layer satisfies clearly contradictory conditions in that it is easily and completely released at an opposite side, while it is tightly bonded to a polyester film.
  • the release film is divided into an off-line coating film and an in-line coating film according to a method of applying the release coating layer on the base film.
  • the off-line coating is a form of manufacturing the release film by applying the release coating layer on the base film in a form of a finished product and drying it.
  • the in-line coating is a form of manufacturing the release film by extruding amorphous melts of polymer, solidifying them in a sheet form, and coating the release coating layer on the sheet, and then subjecting to processes such as preheating, stretching, heat-setting, cooling, and the like.
  • the polyester film is mainly used as the base film. Since the polyester film has a stable chemical structure, it exhibits high mechanical intensity and excellent properties in terms of physical properties such as heat resistance, durability, chemical resistance, and the like.
  • the polyester film since polyethyleneterephthalate has excellent stability in terms of physical property over the wide range of temperature from a low temperature to a high temperature, excellent chemical resistance, excellent mechanical intensity, surface property, and the uniformity of thickness, and excellent adaptability to process conditions of various applications, it has been widely used as an industrial use, a medical use, a packaging use, and the like. Further, when considering environmental pollutions that have been raised in recent years, since polyethyleneterephthalate is high in terms of recycling, the importance for polyethyleneterephthalate has grown significantly in industrial fields.
  • the manufacturing process of the release film by the inline coating includes extruding amorphous melts of polyester casting on a cooling casting drum, solidifying them in a sheet form, applying the release coating solution on the sheet, and then subjecting to heating and stretching processes to prepare the film and in these processes, film intensity, stability, and other preferred physical properties are provided.
  • the film is stretched in one direction or two directions and is then solidified.
  • release coating compositions applied on the film surface by the in-line coating should be quickly set or cured for film productivity and adaptability. Further, the release coating compositions should able to be stretched without degrading the intensity and transparency.
  • silicon release agent can include reactive, cross-linkable silicon-based compounds.
  • the silicon-based compounds may include hydrogen- functional polysiloxane, alkoxy- functional polysiloxane, hydroxyl- functional polysiloxane, vinyl-functional polysiloxane, and the like. All the compounds are sold in a form of a low viscous and easily flowable liquid resin.
  • silicon release agent can be used as aqueous emulsion.
  • a method of forming a silicon coating on the base surface there are (1) a method of forming a releasable coating by further reacting vinyl-functional polysiloxane and hydrogen- functional polysiloxane using platinum-based compounds as a catalyst, (2) a method of forming a releasable coating by performing condensation on polysiloxane using organic acid metal salts such as organic tin compounds, etc., as a catalyst, and the like.
  • adhesion promoters are added in order to improve the adhesion to substrate (smear/rub-off ) .
  • adhesion promoters alkoxysiloxane generally manufactured as described in U.S. Patent No. 6,020,412 can be used.
  • An object of the present invention is to provide a release film including a release coating layer formed using an in-line coating method.
  • the present invention is to provide a crosslinker that improves adhesion to substrate (smear/rub-off ) with a polyester film without using adhesion promoter in an aqueous coating solution to be used for an in-line coating.
  • the present invention relates to a release film, and more specifically, to a release film including a polyester film and a release coating layer that is formed on one side or both sides of the polyester film, wherein the release coating layer is formed by applying an aqueous coating solution including a silicon-based binder resin and an aqueous silicon-based resin having a phenyl group as a crosslinker and crosslinking and curing it .
  • the aqueous coating solution can includes the silicon- based binder resin, the crosslinker, a catalyst, and water as main compositions and additives for giving various functions.
  • the aqueous coating solution is applied to the polyester film in an emulsion or dispersive phase in the water.
  • the dispersion can be made by mixing and agitating aqueous polymer such as polyethyleneglycol or polyvinylalcohol and surfactant such as alkylphenylpolyglycolether as additives .
  • the aqueous coating solution is applied on the polyester film that is a base film, moisture thereof is evaporated in preheating and stretching processes of the film, and the aqueous coating solution is crosslinked and cured in a heat- setting process, whereby it is formed as a coating layer in which only final solids exist. Therefore, the solids in the present invention signify solids of main components that exist in the release coating layer other than additives.
  • the binder resin linear or branched alkylvinyl polysiloxane can be used, specifically, polydimethylsiloxane having one or more functional group selected from hydroxy group, vinyl group, acetylene group bonded to a terminate or a side branch thereof is used.
  • the catalyst is used to perform the curing by inducing hydrosiIylation reaction of the silicon resin binder and uses one or more metal or ampholytic elements selected from 4 group to 14 group, that is, any one selected from Rh, Pt, Sn, Ti, Pd, Ir, W, and Co.
  • the crosslinker a crosslinker where a phenyl group is introduced into a silicon polymer structure is used in order to improve the adhesion to substrate (smear/rub-off) between the binder resin and the polyester film.
  • the crosslinker uses only silicon resin having the following Structural Formula 1 into which the phenyl group is introduced or a mixture of the silicon resin having the following Structural Formula 1 and silicon resin having the following Structural Formula 2 or Structural Formula 3 into which a phenyl group is not introduced.
  • the adhesion to substrate (smear/rub-off) between the polyester film and the binder resin is more improved than the case where the crosslinker including the general alkyl group is applied.
  • the adhesion to substrate (smear/rub-off ) can be ' more improved due to chemical attraction between the phenyl group having the Structural Formula 1 and the phenyl group of PET.
  • x is a natural number selected from 5 to 50.
  • the content of the crosslinker is 10 to 60 wt% in the content of the entire solids of the aqueous coating solution, more preferably 20 to 50 wt%.
  • the content or tne crosslinker is less than 10 wt%, the adhesion to substrate (smear/rub-off) between the polyester film and the release coating layer is degraded and when the content of the crosslinker exceeds 60 wt%, the non-reacted crosslinker may remain.
  • the remaining crosslinker due to the non-reaction is in an oligomer state, such that it may be transferred to an opposite side that the aqueous coating solution is applied when it is stored in a roll state or transferred to the adhesives when it is adhered to adhesives.
  • the polyester film is prepared by general film preparing method polyethyleneterephthalate (PET) resin, which is prepared through condensation polymerization of acid components using aromatic dicarboxylic acid as main components and glycol components using alkyleneglycol as main components, and comprised of ethyleneterephthalate as main repeating unit within molecules.
  • PET polyethyleneterephthalate
  • the detailed example of the aromatic dicarboxylic acid may include dimethylterephthalic acid, terephthalic acid, isophthalic acid, naphthalene dicarboxylic acid, cyclohexanedicarboxylic acid, diphenoxyethandicarboxylic acid, anthracenedicarboxylic acid, ⁇ , ⁇ -bis (2-chlorophenoxy) ethane- 4, 4' -dicarboxylic acid, and the like.
  • the dimethylterephthalic acid or terephthalic acid is in particular preferable.
  • the detailed example of the alkylene glycol may include ethylene glycol, trimethylglycol, tetramethyleneglycol , pentamethyleneglycol, hexamethyleneglycol , and the like.
  • ethylene glycol is in particular preferable.
  • the release film according to the present invention may be prepared by any of an in-line coating method or an off-line coating method, but preferably, is prepared by the in-line coating method.
  • the aqueous coating solution is applied by the known coating method.
  • An example of the known coating method may include a roll coating, a gravure roll coating, a roll brush coating, a spray coating, an air knife coating, a slot coating, a dip or meniscus coating, and the like.
  • the noncrystalline sheet is prepared and the coating may be then performed before the stretching process, before a transverse direction (TD) stretching process after a machine direction (MD) stretching process, or before the heat-setting process after the transverse direction stretching process.
  • TD transverse direction
  • MD machine direction
  • the coating when the coating is performed before the machine direction stretching process, since a separate drying process is required, it is preferable to perform the coating before the transverse direction stretching after the machined direction stretching.
  • the release film When the release film is prepared by the in-line coating method, it has effects that moisture is evaporated in the preheating and stretching processes, the curing is made at the heat- setting temperature that is high temperature, and the silicon-based resin is oriented to the polyester film by the stretching, making it possible to obtain a coating film having excellent physical properties. Also, when the surface of the polyester film is surface- treated by a method such as an electric corona discharge before prepared solution is coated, hydrophobic property of the polyester film is reduced such that the prepared solution is easier wetted, thereby improving adhesion to substrate (smear/rub-off) of the release coating layer to the surface of the polyester film.
  • a dry applying thickness is prepared at 0.01 to 2 ⁇ m.
  • the dry applying thickness is less than O.Ol ⁇ m, it is not possible to give sufficient release performance and when the dry applying thickness exceeds 2 ⁇ m, the adhesion to substrate (smear/rub-off ) can be degraded.
  • the thickness of the polyester film is not limited, but the thickness of 4 to 500 ⁇ m is suitable to achieve the sufficient release performance and adhesion to substrate (smear/rub-off ) .
  • the present invention can provide the release film having excellent storage stability of prepared solution since the aqueous coating solution for forming the release coating layer does not use adhesion promoter and excellent adhesion to substrate (smear/rub-off) with the polyester film by using the crosslinker having a unique phenyl group. Further, the present invention can form the eco-friendly, thin, and uniform film since the coating is performed by the in-line coating using the aqueous coating solution.
  • Release value Nitto 3IB tape was put on a release coating layer, reciprocally rubbed by going and returning twice using a rubber roll of 2kg, and then cut at a size 25 mm x 20 cm to prepare a sample. After the prepared sample was applied with a load of 20 g/cm 2 and left at 70 0 C for a day, T-type release evaluation was performed using a universal tester (Model No. Instron 4304 manufactured by Instron Co.) . The release speed was set to 300 mm/minute.
  • the adhesion to substrate is evaluated as follows by strongly rubbing the release coating layer by goning and returning five times using a thumb
  • the release coating layer of the release film prepared in Examples and Comparative Examples contacts the PET film prepared separately the release coating layer, it was applied with 50 g/ cm 2 and left at 40 0 C for 3 days. Thereafter, the transfer rate was measured before and after the polyethyleneterephthalate (PET) film was left.
  • Back side transfer rate (%) (release value before polyethyleneterephthalate (PET) film is left release value after polyethyleneterephthalate (PET) film is left.) x 100/ release value before polyethyleneterephthalate (PET) film is left.
  • the prepared solution is made so that the entire solids of coating solution is 1%, 10%, 25%, and 50% and each prepared solution was applied on a biaxially stretched 30 ⁇ m PET film and a haze change thereof was observed over time, thereby measuring pot life .
  • the haze was measured by an ASTM D-1003 method.
  • the catalyst used a platinum catalyst (Na 2 PtCl 4 4H 2 O) and the emulsifier used polyvinylalcohol (Mowiol (4-80) by Hoechst Co.), the adhesion promoter used ⁇ - acryloxypropyltrimethoxysilane .
  • the mixing is performed so that the binder resin is 50 wt% in the content of the entire solids, the crosslinker including the phenyl group is 10 wt% in the content of the entire solids, and the crosslinker including no the phenyl group is 40 wt% in the content of the entire solids and water is added to the mixture so that each of the contents of the entire solids is 1%, 10%, 25%, and 50% in the coating solution, thereby preparing solution.
  • the catalyst 100 ppm with respect to the content of resin
  • the emulsifier used 5 parts by weight for every 100 parts by weight of the content of the solids in the coating solution.
  • the cooled film is applied with the coating solution A by using a gravure coater so that the thickness of the coating solution A is 8 ⁇ m, wherein the coating solution A is prepared to have the content of the entire solids of 10%. It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat-set at 230 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m.
  • TD transverse direction
  • the mixing is performed so that the binder resin is 50 wt% in the content of the entire solids, the crosslinker including the phenyl group is 20 wt% in the content of the entire solids, and the crosslinker including no the phenyl group is 30 wt% in the content of the entire solids and water is added to the mixture so that each of the contents of the entire solids is 1%, 10%, 25%, and 50% in the coating solution, thereby preparing solution.
  • the catalyst used 100 ppm and the emulsifier used 5 parts by weight for every 100 parts by weight of the content of the solids in the coating solution.
  • the stability of the prepared solution for such a prepared coating solution was measured and the measured results were represented by Table 2.
  • the cooled film is applied with the coating solution B by using a gravure coater so that the thickness of the coating solution B is 8 ⁇ m, wherein the coating solution B is prepared to have the content of the entire solids of 10%. It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat-set at 23O 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m.
  • TD transverse direction
  • the mixing is performed so that the binder resin is 50 wt% in the content of the entire solids, the crosslinker including the phenyl group is 30 wt% in the content of the entire solids, and the crosslinker including no the phenyl group is 20 wt% in the content of the entire solids and water is added to the mixture so that each of the contents of the entire solids is 1%, 10%, 25%, and 50% in the coating solution, thereby preparing solution.
  • the catalyst used 100 ppm and the emulsifier used 5 parts by weight for every 100 parts by weight of the content of the solids in the coating solution.
  • the stability of the prepared solution for such a prepared coating solution was measured and the measured results were represented by Table 2.
  • the cooled film is applied with the coating solution C by using a gravure coater so that the thickness of the coating solution C is 8 ⁇ m, wherein the coating solution C is prepared to have the content of the entire solids of 10%. It is dried and preheated at 13O 0 C, stretched in a transverse direction (TD) four times, and heat-set at 230 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m.
  • the release value, adhesion to substrate ( smear/ ruJo-ott) , and back side transfer rate of such a prepared film were measured and the measured results were represented by the following Table 2.
  • the mixing is performed so that the binder resin is 50 wt% in the content of the entire solids, the crosslinker including the phenyl group is 40 wt% in the content of the entire solids, and the crosslinker including no the phenyl group is 10 wt% in the content of the entire solids and water is added to the mixture so that each of the contents of the entire solids is 1%, 10%, 25%, and 50% in the coating solution, thereby preparing solution.
  • the catalyst used 100 ppm and the emulsifier used 5 parts by weight for every 100 parts by weight of the content of the solids in the binder resin.
  • the stability of the prepared solution for such a prepared coating solution was measured and the measured results were represented by Table 2.
  • the cooled film is applied with the coating solution D by using a gravure coater so that the thickness of the coating solution D is 8 ⁇ m, wherein the coating solution D is prepared to have the content of the entire solids of 10%.
  • It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat-set at 230 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m.
  • the release value, adhesion to substrate (smear/rub-off ), and back side transfer rate of such a prepared film were measured and the measured results were represented by the following Table 2.
  • the mixing is performed so that the binder resin is 50 wt% in the content of the entire solids and the crosslinker including the phenyl group is 50 wt% in the content of the entire solids and water is added to the mixture so that each of the contents of the entire solids is 1%, 10%, 25%, and 50% in the coating solution, thereby preparing solution.
  • the catalyst used 100 ppm and the emulsifier used 5 parts by weight for every 100 parts by weight of the content of the solids in the coating solution.
  • the stability of the prepared solution for such a prepared coating solution was measured and the measured results were represented by Table 2.
  • Preparation of Release Film A sheet obtained by melting . and extruding polyethyleneterephthalate resin and rapidly cooling it was preheated at 95 0 C in a preheating part and stretched and cooled four times in a machine direction (MD) .
  • the cooled film is applied with the coating solution E by using a gravure coater so that the thickness of the coating solution E is 8 ⁇ m, wherein the coating solution E is prepared to have the content of the entire solids of 10%.
  • Preparation of Release Film A sheet obtained by melting and extruding polyethyleneterephthalate resin and rapidly cooling it was preheated at 95 0 C in a preheating part and stretched and cooled four times in a machine direction (MD) .
  • the cooled film is applied with the coating solution E by using a gravure coater so that the thickness of the coating solution E is 8 ⁇ m, wherein the coating solution E is prepared to have the content of the entire solids of 5%.
  • the cooled film is applied with the coating solution E by using a gravure coater so that the thickness of the coating solution E is 8 ⁇ m, wherein the coating solution E is prepared to have the content of the entire solids of 25%. It is dried and preheated at 130°C, stretched in a transverse direction (TD) four times, and heat-set at 23O 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.5 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m.
  • the cooled film is applied with the coating solution E by using a gravure coater so that the thickness of the coating solution E is 8 ⁇ m, wherein the coating solution E is prepared to have the content of the entire solids of 50%. It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat- set at 230 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 1.0 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m .
  • the cooled film is applied with the coating solution E by using a gravure coater so that the thickness of the coating solution E is 8 ⁇ m, wherein the coating solution E is prepared to have the content of the entire solids of 10%. It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat-set at 230 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 12 ⁇ m.
  • TD transverse direction
  • the cooled film is applied with the coating solution E by using a gravure coater so that the thickness of the coating solution E is 8 ⁇ m, wherein the coating solution E is prepared to have the content of the entire solids of 10%. It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat-set at 230 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 100 ⁇ m.
  • TD transverse direction
  • the cooled film is applied with the coating solution E by using a gravure coater so that the thickness of the coating solution E is 8 ⁇ m, wherein the coating solution E is prepared to have the content of the entire solids of 10%. It is dried and preheated at 13O 0 C, stretched in a transverse direction (TD) four times, and heat-set at 23O 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 250 ⁇ m.
  • TD transverse direction
  • the mixing is performed so that the binder resin is 50 wt% in the content of the entire solids and the crosslinker including no the phenyl group is 40 wt% in the content of the entire solids and water is added to the mixture so that each of the contents of the entire solids is 1%, 10%, 25%, and 50% in the coating solution, thereby preparing solution.
  • the catalyst used 100 ppm with respect to the content of resin
  • the emulsifier used 5 parts by weight for every 100 parts by weight of the content of the solids in the coating solution.
  • the stability of the prepared solution for such a prepared coating solution was measured and the measured results were represented by Table 2.
  • the cooled film is applied with the coating solution F by using a gravure coater so that the thickness of the coating solution F is 8 ⁇ m, wherein the coating solution F is prepared to have the content of the entire solids of 10%. It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat-set at 230 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m.
  • TD transverse direction
  • Preparation of Coating Solution G The mixing is performed so that the binder resin is 50 wt% in the content of the entire solids, the crosslinker including no the phenyl group is 49.8 wt% in the content of the entire solids, and the adhesion promoter is 0.2 wt% in the content of the entire solids and water is added to the mixture so that each of the contents of the entire solids is 1%, 10%, 25%, and 50% in the coating solution, thereby preparing solution.
  • the catalyst 100 ppm with respect to the content of resin
  • the emulsifier used 5 parts by weight for every 100 parts by weight of the content of the solids in the coating solution.
  • the stability of the prepared solution for such a prepared coating solution was measured and the measured results were represented by Table 2.
  • the cooled film is applied with the coating solution G by using a gravure coater so that the thickness of the coating solution G is 8 ⁇ m, wherein the coating solution G is prepared to have the content of the entire solids of 10%. It is dried and preheated at 130 0 C, stretched in a transverse direction (TD) four times, and heat-set at 23O 0 C, thereby preparing the release film where the coating layer having a dry pick-up thickness of 0.2 ⁇ m is uniformly formed on a base film having a thickness of 30 ⁇ m.
  • TD transverse direction
  • the stability of prepared solution should be secured for at least 10 hours.
  • the adhesion promoter since the stability of prepared solution is 3 hours or less even when the concentration is low, it can be appreciated that separate facilities are needed or there is a need to adjust the conditions, etc.
  • the crosslinker including the phenyl group in order to prepare the release film having excellent stability of prepared solution in the preparation and excellent adhesion to substrate (smear/rub-off ) in products, it is advantageous to apply the crosslinker including the phenyl group and it can be appreciated that when the amount of the crosslinker is 20 to 50% with respect to the solids, the effect is excellent.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne un film antiadhésif, et notamment un film antiadhésif comprenant un film de polyester et une couche de revêtement antiadhésive formée sur un côté ou sur les deux côtés du film de polyester. La couche de revêtement antiadhésive est formée par application d'une solution de revêtement aqueuse comprenant une résine liante à base de silicone et une résine aqueuse à base de silicone renfermant un groupe phényle comme agent de réticulation et permettant la réticulation et le durcissement de ladite solution, d'où une meilleure adhésion au substrat (maculage/effacement par frottement) avec le film de polyester.
PCT/KR2008/007715 2007-12-27 2008-12-26 Film antiadhésif Ceased WO2009104865A2 (fr)

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CN2008801275998A CN101965377B (zh) 2007-12-27 2008-12-26 剥离膜
JP2010540582A JP5735278B2 (ja) 2007-12-27 2008-12-26 離型フィルム

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KR10-2007-0138124 2007-12-27
KR1020070138124A KR101348955B1 (ko) 2007-12-27 2007-12-27 이형필름

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WO2009104865A2 true WO2009104865A2 (fr) 2009-08-27
WO2009104865A3 WO2009104865A3 (fr) 2009-10-22

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KR (1) KR101348955B1 (fr)
CN (1) CN101965377B (fr)
WO (1) WO2009104865A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102204965B1 (ko) * 2013-09-30 2021-01-19 코오롱인더스트리 주식회사 이형필름 및 이의 제조방법
KR102392098B1 (ko) * 2015-12-31 2022-04-28 코오롱인더스트리 주식회사 이형 필름 및 이의 제조방법
DE102018105735A1 (de) * 2018-03-13 2019-09-19 Mitsubishi Polyester Film Gmbh Trennfolie für Tiefdruckanwendung
JP7082890B2 (ja) * 2018-03-23 2022-06-09 リンテック株式会社 セラミックグリーンシート製造工程用剥離フィルム
KR102240072B1 (ko) * 2018-09-28 2021-04-14 주식회사 엘지화학 이형층용 조성물 및 이의 경화물을 포함하는 이형필름
CN120641269A (zh) * 2023-02-03 2025-09-12 东洋纺株式会社 脱模薄膜
KR20250123870A (ko) 2023-02-03 2025-08-18 도요보 가부시키가이샤 이형 필름
CN121532275A (zh) 2023-07-26 2026-02-13 东洋纺株式会社 脱模薄膜

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2035964A1 (fr) * 1990-03-06 1991-09-07 Carl R. Kessel Revetement sans solvant a degagement de silicium
JP2508898B2 (ja) * 1990-07-16 1996-06-19 信越化学工業株式会社 剥離紙の製造方法
JP3493023B2 (ja) * 1992-11-30 2004-02-03 大日本印刷株式会社 熱転写受像シートの製造方法
JP3774982B2 (ja) * 1997-04-15 2006-05-17 三菱化学ポリエステルフィルム株式会社 離型フィルム
DE19734260A1 (de) * 1997-08-07 1999-02-11 Wacker Chemie Gmbh Trennkraftregulierung klebrige Stoffe abweisender Siliconbeschichtungen
US6020412A (en) * 1997-12-04 2000-02-01 Mitsubishi Polyester Film, Llc Controlled release coating comprising blend of silicone polymer and adhesion promoter
KR100530518B1 (ko) * 1998-02-17 2006-02-13 주식회사 새 한 실리콘 이형필름의 제조방법
KR20030014587A (ko) * 2001-08-10 2003-02-19 미쓰비시 가가꾸 폴리에스테르 필름 가부시키가이샤 폴리에스테르 필름
FR2832414B1 (fr) * 2001-11-20 2004-01-30 Rhodia Chimie Sa Reticulant pour composition silicone reticulable a basse temperature a base d'une huile silicone hydrogenee comprenant des motifs si-h en bout de chaine et dans la chaine
KR100502862B1 (ko) * 2002-10-25 2005-07-22 도레이새한 주식회사 실리콘 수성 에멀전 이형액 및 이를 이용한 이형필름
JP4524549B2 (ja) * 2003-08-14 2010-08-18 信越化学工業株式会社 シリコーン粘着剤用離型剤組成物及びそれを用いた離型シート
US20060058486A1 (en) * 2004-09-16 2006-03-16 Wacker-Chemie Gmbh Alkenyl-functional organopolysiloxanes
JP4646122B2 (ja) * 2005-06-30 2011-03-09 信越化学工業株式会社 剥離フィルム用シリコーン組成物
KR100965378B1 (ko) * 2005-12-07 2010-06-22 도레이첨단소재 주식회사 박리력을 조절할 수 있는 실리콘 이형 조성물 및 이를 코팅한 실리콘 이형필름
KR100839780B1 (ko) * 2006-01-18 2008-06-19 주식회사 엘지화학 유연성 기판 반송용 점착제
JP5458492B2 (ja) * 2006-02-16 2014-04-02 東レ株式会社 成形用二軸配向ポリエステルフィルム

Also Published As

Publication number Publication date
CN101965377B (zh) 2013-03-06
JP2011509323A (ja) 2011-03-24
JP5735278B2 (ja) 2015-06-17
WO2009104865A3 (fr) 2009-10-22
CN101965377A (zh) 2011-02-02
KR20090070204A (ko) 2009-07-01
KR101348955B1 (ko) 2014-01-08

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