EP2054223A1 - Pièce composite constituée d'une feuille multicouche et d'un substrat à base d'un polyalkyl(méth)acrylate - Google Patents

Pièce composite constituée d'une feuille multicouche et d'un substrat à base d'un polyalkyl(méth)acrylate

Info

Publication number
EP2054223A1
EP2054223A1 EP07802788A EP07802788A EP2054223A1 EP 2054223 A1 EP2054223 A1 EP 2054223A1 EP 07802788 A EP07802788 A EP 07802788A EP 07802788 A EP07802788 A EP 07802788A EP 2054223 A1 EP2054223 A1 EP 2054223A1
Authority
EP
European Patent Office
Prior art keywords
layer
polyalkyl
meth
acrylate
composite part
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.)
Withdrawn
Application number
EP07802788A
Other languages
German (de)
English (en)
Inventor
Kirsten LÜTZELER
Klaus Hülsmann
Martin Wielpütz
Frank Lorenz
Roland Wursche
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.)
Evonik Operations GmbH
Original Assignee
Evonik Degussa GmbH
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
Application filed by Evonik Degussa GmbH filed Critical Evonik Degussa GmbH
Publication of EP2054223A1 publication Critical patent/EP2054223A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • 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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • 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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/24—Homopolymers or copolymers of amides or imides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L13/00—Compositions of rubbers containing carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Definitions

  • the invention relates to composite parts of a multilayer film and a substrate based on polyalkyl (meth) acrylate.
  • Injection molded or extruded molded parts of polyalkyl acrylate or polyalkyl methacrylate are widely used because of the transparency and other good optical and mechanical properties of the polyalkyl (meth) acrylates. Due to the lack of chemical resistance and pronounced stress cracking sensitivity of the polyalkyl (meth) acrylates, however, molded parts can not be used anywhere where the action of solvents or chemicals can not be reliably ruled out.
  • EP 0 696 501 A2 describes that this deficiency can be remedied by a well-adhering coating of the polyalkyl (meth) acrylate molded parts with polyamide, in which case an adhesion promoter must be used.
  • the invention has for its object to avoid these disadvantages and to achieve greater freedom of design.
  • a composite part which is composed of I. a multilayer film which contains the following layers: a) a layer of a polyamide molding compound and b) an inwardly following layer of an adhesion promoter containing from 5 to 100% by weight of a copolymer containing the following monomer units:
  • the invention also provides the use of the film according to I. for producing a composite part which contains a substrate according to IL.
  • the polyamide of the layer according to I. a) is not subject to any restriction.
  • Aliphatic homopolymers and copolycondensates are suitable in the first place, for example PA46, PA66, PA88, PA610, PA612, PA810, PA101, PA1012, PA1212, PA6, PA7, PA8, PA9, PA10, PA11 and PA12 Labeling of the polyamides is in accordance with international standards, where the first digit (s) indicate the C atomic number of the starting diamine and the last digit (s) the C atomic number of the dicarboxylic acid in that an ⁇ , 0> amino carboxylic acid or the lactam derived therefrom has been used, for the rest reference is made to H. Domininghaus, Die Kunststoffe und Struktur, pages 272 ff., VDI-Verlag, 1976.)
  • copolyamides are used, these z.
  • adipic acid sebacic acid, suberic acid, isophthalic acid, terephthalic acid, naphthalene-2,6-dicarboxylic acid, etc. as co-acid or bis (4-aminocyclohexyl) methane, bis (3-methyl-4-aminocyclohexyl) methane, trimethyl hexamethylenediamine, hexamethylenediamine or the like contained as codiamine.
  • Lactams such as caprolactam or laurolactam
  • aminocarboxylic acids such as co-aminoundecanoic acid can also be incorporated as cocomponent.
  • polyamides and mixed aliphatic / aromatic polycondensates are suitable, as z.
  • polycondensates usually polycondensates, the monomers of aromatic dicarboxylic acids such.
  • aromatic dicarboxylic acids such as terephthalic acid and isophthalic acid
  • aliphatic dicarboxylic acids such as.
  • adipic acid aliphatic diamines such.
  • polystyrene resin As hexamethylenediamine, nonamethylenediamine, dodecamethylenediamine and 2-methyl-l, 5-pentanediamine and lactams or CO-amino carboxylic acids such. As caprolactam, laurolactam and co-aminoundecanoic acid are selected.
  • the content of aromatic monomer units in the polycondensate is generally at least 0.1%, at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, at least 45% or about 50%, based on the sum of all monomer units.
  • polycondensates are often referred to as "polyphthalamide” or "PPA”.
  • Further suitable polyamides are poly (etheresteramides) or poly (etheramides); Such products are z. B. in DE-OSS 25 23 991, 27 12 987 and 30 06 961 described.
  • the polyamide molding composition may contain either one of these polyamides or more as a mixture. Furthermore, up to 40% by weight of other thermoplastics may be present, provided that they do not interfere with the bondability, in particular impact-modifying rubbers such as ethylene / propylene or ethylene / propylene / diene copolymers, polypentenylene, polyoctenylene, random or block copolymers of alkenylaromatic Compounds with aliphatic olefins or dienes (EP-AO 261 748) or core / shell rubbers with a viscoelastic core of (meth) acrylate, butadiene or styrene / butadiene rubber with glass transition temperatures T g ⁇ -10 0 C, wherein the Core can be crosslinked and the shell of styrene and / or methyl methacrylate and / or other unsaturated monomers can be constructed (DE-OSS 21 44 528, 37 28 685).
  • impact-modifying rubbers
  • the polyamide molding compound the usual additives for polyamides and additives such.
  • additives such as flame retardants, stabilizers, UV absorbers, plasticizers, processing aids, Fillers, in particular for improving the electrical conductivity, nanofillers, pigments, dyes, nucleating agents or the like may be added.
  • the amount of the said agents should be metered so that the desired properties are not seriously affected.
  • it is desirable that the polyamide molding compound is sufficiently transparent at the layer thickness used.
  • the monomer units of the polyamide derived from diamine, dicarboxylic acid or lactam (or aminocarboxylic acid) have on average at least 8 C atoms and more preferably at least 9 C atoms.
  • Polyamides which are particularly suitable for the purposes of the invention are:
  • PA PACM12 The polyamide of 1,12-dodecanedioic acid and 4,4'-diaminodicyclohexylmethane (PA PACM12), in particular starting from a 4,4'-diaminodicyclohexylmethane with a trans, trans isomer content of 35 to 65%; the polyamide of sebacic acid or 1,12-dodecanedioic acid and 3,3'-dimethyl-4,4'-diaminodicyclohexylmethane;
  • PA PACM12 4,4'-diaminodicyclohexylmethane
  • PA612 PA101, PA1012, PA11, PA12, PA1212 and mixtures thereof;
  • Copolyamides which can be prepared from the following monomer combination: a) 65 to 99 mol%, preferably 75 to 98 mol%, particularly preferably 80 to 97 mol% and particularly preferably 85 to 96 mol% of a substantially equimolar mixture of an aliphatic unbranched diamine and an aliphatic unbranched dicarboxylic acid, wherein the mixture is optionally in the form of a salt and in addition diamine and dicarboxylic acid are counted individually in the calculation of the composition, with the proviso that the mixture of diamine and dicarboxylic acid on average 8 to 12 C Atoms and preferably contains 9 to 11 C atoms per monomer; b) 1 to 35 mol%, preferably 2 to 25 mol%, particularly preferably 3 to 20 mol% and particularly preferably 4 to 15 Mo 1-% of a substantially equimolar mixture of a cyclo aliphatic diamine and a dicarboxylic acid.
  • the adhesion promoter contains as effective agent 5 to 100 wt .-%, preferably 10 to 80 wt .-%, particularly preferably 15 to 60 wt .-% and particularly preferably 20 to 40 wt -.% Of a copolymer which preferably contains the following monomer units : 1. about 70 to about 99.9 wt .-%, preferably 80 to 99.4 wt .-% and particularly preferably 85 to 99 wt .-% of monomer units which are selected from units of the following formulas:
  • R as above and R and R independently of one another, equal to H, methyl or ethyl
  • R 1 as above.
  • the limitation of the chain length in the substituents R 1 to R 5 and R 7 is due to the fact that longer alkyl radicals lead to a lowered glass transition temperature and thus to a reduced heat resistance. This may be accepted in individual cases.
  • the units of the formula (I) are derived, for example, from acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, n-butyl acrylate, methyl methacrylate, n-propyl methacrylate or isobutyl methacrylate.
  • the units of the formula (II) are derived, for example, from acrylamide, methacrylamide, N-methylacrylamide, N-methylmethacrylamide or N, N-dimethylacrylamide.
  • the units of the formula (III) are derived from acrylonitrile or methacrylonitrile.
  • the units of the formula (IV) are derived from ethene, propene, styrene or ⁇ -methylstyrene; the latter can be replaced in whole or in part by other polymerizable aromatics such as p-methylstyrene or indene, which have the same effect.
  • maleimides such as maleimide, N-methylmaleimide, N-ethylmaleimide, N-phenylmaleimide or N-methylaconitic imide.
  • the units of the formula (VI) are derived from optionally substituted maleic anhydrides, such as maleic anhydride or aconitic anhydride. The latter may be wholly or partly by other unsaturated acid anhydrides such. B. itaconic anhydride are replaced, which have the same effect.
  • the units of formula (VII) are derived from glycidyl acrylate or glycidyl methacrylate and the units of formula (VIII) of vinyloxazoline or isopropenyloxazoline.
  • copolymer various embodiments are preferred which contain the following units:
  • Such copolymers are prepared in a known manner by free-radically initiated copolymerization of z.
  • Carboxylic anhydrides and acrylic or methacrylonitrile accessible are examples.
  • Such copolymers are accessible in a known manner by free-radically initiated copolymerization of acrylic acid, methacrylic acid and / or their esters, optionally aliphatically unsaturated aromatics or olefins and unsaturated carboxylic anhydrides.
  • Units of the formula (III); 0.1 to 30 wt .-%, preferably 0.6 to 20 wt .-% and particularly preferably 1 to 15% by weight of units of the formula (VI) with m 0.
  • Copolymers of this kind are obtainable in a known manner by free-radically initiated copolymerization of acrylic acid, methacrylic acid and / or their esters, acrylonitrile or methacrylonitrile and unsaturated carboxylic acid anhydrides.
  • G 0 to 99.9 wt .-%, preferably 0.1 to 99.4 wt .-% and particularly preferably 2 to 99 wt .-% of units selected from the formulas (I), wherein R 2 is not H, and (III),
  • the copolymer may in each case additionally contain further monomer units, for example those derived from maleic diesters, fumaric diesters, itaconic esters or vinyl acetate, as long as the desired adhesion-promoting effect is not significantly impaired.
  • the adhesion promoter may consist entirely of the copolymer; in a variant thereof, the copolymer contains a Schlagzähmodif ⁇ er, z. B. an acrylate rubber.
  • the adhesion promoter contains from 5 to 99.9% by weight, preferably from 10 to 80% by weight, particularly preferably from 15 to 60% by weight and particularly preferably from 20 to 40% by weight of the copolymer, and From 1 to 95% by weight, preferably from 20 to 90% by weight, particularly preferably from 40 to 85% by weight and particularly preferably from 60 to 80% by weight, of polyalkyl (meth) acrylate, polycarbonate, MBS (methyl methacrylate-butadiene) styrene copolymer, z. B. CYROLITE ® from Röhm GmbH), SAN (styrene-acrylonitrile copolymer) and / or ABS.
  • the adhesion promoter contains from 5 to 99.9% by weight, preferably from 10 to 80% by weight, particularly preferably from 15 to 60% by weight and especially preferably from 20 to 40% by weight, of the copolymer and From 1 to 95% by weight, preferably from 20 to 90% by weight, particularly preferably from 40 to 85% by weight and particularly preferably from 60 to 80% by weight, of a mixture of polyamide and a polymer selected from polycarbonate, SAN, ABS and polyalkyl (meth) acrylate in a weight ratio of 99.9: 0.1 to 0.1: 99.9 and preferably 70: 30 to 10: 90.
  • the adhesion promoter can contain, in addition to the copolymer, other suitable polymers which at least do not impair the adhesion to the polyamide layer and to the substrate.
  • the primer can the usual auxiliaries and additives such. As flame retardants, stabilizers, plasticizers, processing aids, dyes, pigments or the like. The amount of the said agents should be metered so that the desired properties are not seriously affected.
  • the film can, depending on the application, further layers contain, for example, a substrate-side support layer of a polyalkyl (meth) acrylate molding composition, which preferably largely matches the substrate of the polymer composition ago, or a MBS, ABS or polycarbonate molding composition, a color layer, another polyamide layer, such as a support layer , and / or a protective layer or a clearcoat.
  • a substrate-side support layer of a polyalkyl (meth) acrylate molding composition which preferably largely matches the substrate of the polymer composition ago, or a MBS, ABS or polycarbonate molding composition
  • a color layer such as a support layer
  • another polyamide layer such as a support layer
  • / or a protective layer or a clearcoat such as a support layer, and / or a protective layer or a clearcoat.
  • the color layer may be a lacquer layer; However, it is, according to the prior art, preferably from a colored thermoplastic layer.
  • the thermoplastic layer may be identical to the layer according to I. a).
  • the color layer may adjoin the layer according to I. a) to the outside or to the inside.
  • the film is optionally covered to the outside by a clearcoat, if this is technically necessary to z. B. to ensure a desired depth effect of the coloring ..
  • organic dyes inorganic or organic pigments or metal flakes are used.
  • the clearcoat may, for example, consist of polyamide, an acrylate polymer, a fluoropolymer or mixtures thereof, according to the prior art. It should ensure the required visual surface properties and protect the underlying layers. For example, it may also be a polyurethane-based clearcoat.
  • a protective layer in the form of a lacquer may also be modified to increase the scratch resistance according to the prior art. In addition, it is also possible to generate a protective layer on the component via vacuum deposition methods.
  • the clearcoat is a polyamide, in particular the polyamides cited above as being particularly suitable for the layer according to I. a) are suitable.
  • the clearcoat may optionally be colored transparent, but it is preferably not colored.
  • a backing layer is a layer which provides greater strength to the film by its thickness.
  • a peelable protective film can be laminated onto the finished multilayer film which acts as a transport or mounting protection and is deducted after the production of the composite part.
  • the layer according to I. a), the color layer and / or the carrier layer comprises a molding composition containing a polyetheramide or a polyetheresteramide and preferably a polyetheramide or polyetheresteramide based on a linear aliphatic diamine having 6 to 18 and preferably 6 to 12 C atoms, a linear aliphatic or aromatic dicarboxylic acid having 6 to 18 and preferably 6 to 12 carbon atoms and a polyether having more than an average of 2.3 carbon atoms per oxygen atom and a number average molecular weight of 200 to 2,000 Molding this layer may contain other blend components such.
  • polyacrylates or polyglutarimides with carboxyl or carboxylic anhydride groups or epoxide groups, a functional group-containing rubber and / or a polyamide are state of the art; They are described, for example, in EP 1 329 481 A2 and DE-OS 103 33 005, to which reference is expressly made here.
  • the polyamide portion of the polyamide elastomer is composed of the same monomers as are used in one of the components of the polyamide layer. However, this is not absolutely necessary in order to achieve good adhesion.
  • the layer I is an alternative to the polyamide elastomer, the layer I.
  • the color layer and / or the carrier layer may also contain, in addition to a polyamide, a conventional impact-modifying rubber.
  • Examples of useful layer arrangements of the film used according to the invention are, in each case from outside to inside (towards the substrate):
  • the multilayer film has a thickness of 0.02 to 1.2 mm, particularly preferably 0.05 to 1 mm, very particularly preferably 0.1 to 0.8 mm and particularly preferably 0.2 to 0 , 6 mm.
  • the adhesion promoter layer has a thickness of from 0.01 to 0.5 mm, particularly preferably from 0.02 to 0.4 mm, very particularly preferably from 0.04 to 0.3 mm and in particular from 0, 05 to 0.2 mm.
  • the film is produced by known methods, for example by extrusion, or in the case of multilayer systems by coextrusion or lamination. It can then optionally be reshaped.
  • the cohesive connection of the film to the substrate can be produced, for example, by gluing, pressing, laminating, back-molding, back-foaming or rear-pressing.
  • the film Before the formation of the bond between film and substrate, the film can still be processed or reshaped, for example by thermoforming, deep drawing or other methods.
  • the surface can be structured, for example, by embossing. A structuring of the surface is also possible upstream in the context of film extrusion, for example by specially designed rollers.
  • the resulting composite part can then be further formed.
  • the substrate consists in particular of polyalkyl (meth) acrylates having 1 to 6 carbon atoms in the carbon chain of the alkyl radical, the methyl group being preferred as the alkyl group.
  • Polyalkyl (meth) acrylates usually have a MeIt flow rate of 0.5 to 30 g / 10 min, preferably 0.8 to 15 g / 10 min, measured according to ISO 1133 at 230 0 C with a
  • the molding composition can be set impact-resistant, for example, by adding a customary for such molding compounds core / shell rubber.
  • a customary for such molding compounds core / shell rubber at less than 50 wt .-%, preferably at most 40 wt .-%, more preferably at most 30 wt .-% and particularly preferably at most 20% by weight of other thermoplastics such as SAN (styrene / acrylonitrile Copolymer), ABS and / or polycarbonate.
  • the polyalkyl (meth) acrylate may also contain stabilizers, processing aids, fillers and reinforcing agents, dyes, pigments and other conventional additives or additives in the usual amounts.
  • Suitable molding compositions are state of the art, for example reference is made to EP 0 716 122 A2, EP 0 776 931 A1, WO 99/42271 and US Pat. No. 5,232,986.
  • the claimed film is used as a cover layer of an optical component.
  • optical component examples include lenses, headlamp lenses, rear lights, lenses, prisms, lenses, displays, decoration components for displays, all kinds of glazing and cell phone cases.
  • the claimed film is used as a cover layer of a film composite for the design or decoration of surfaces on and in automobiles and commercial vehicles, wherein the film is adhesively bonded to the substrate.
  • the correspondingly shaped component may be formed flat, such as a body part, such as roof module, fenders, hood or door.
  • embodiments in question in which elongated, more or less curved components are produced, such as panels, such as the lining of so-called A-pillars on the car or trim and trim strips of all kinds, such as radio panels. Another example is door guards.
  • trim elements such as strips and panels, as in the interior impact resistance and resistance to chemicals, such as cleaning agents is required.
  • the film can also be used, for example, as a protective film against pollution, UV radiation, weathering, chemicals or abrasion, as a barrier film on vehicles, in the home, on floors, tunnels, tents and buildings or as decor carrier about for top coverings of sports equipment, boats, planes, in the household or on buildings.
  • a protective film against pollution UV radiation, weathering, chemicals or abrasion
  • a barrier film on vehicles in the home, on floors, tunnels, tents and buildings or as decor carrier about for top coverings of sports equipment, boats, planes, in the household or on buildings.
  • Examples include medical, sanitary or hygiene articles such. As razors, electric toothbrushes and medical devices or components.
  • PACM12 TROGAMID CX7323 ® (Degussa GmbH)
  • PAI 2 A type having a relative solution viscosity ⁇ rel, determined according to ISO
  • PA1012 A type with a relative solution viscosity ⁇ re i of 2.1
  • PAlOlO A type with a relative solution viscosity ⁇ re i of 2.0
  • the copolymer a polymethacrylimide
  • a polymethacrylimide can be prepared by reacting a melt of polymethyl methacrylate (PMMA) with an aqueous methylamine solution, for example in an extruder.
  • PMMA polymethyl methacrylate
  • PMMA PLEXIGLAS ® 7N (Röhm GmbH)
  • the multilayer films were produced on a Collin plant at a take-off speed of 2.0 m / min.
  • the extruded monolayers were combined and passed over a calender.
  • the films had a width of 24 cm; the polyamide layer had a thickness of about 180 microns and the adhesive layer has a thickness of about 240 microns.
  • the back injection molding was done on a machine of the type Engel 650/200 with a mold temperature of 80 0 C and a melt temperature of 260 0 C.
  • the film was also tailored x 150 mm to a size of 100 mm and (in a die plate 105 mm x 150 mm x 0.8 - 10 mm).
  • the thickness of the back-injected plate was 3 mm including the foil.
  • the transparency of the composite parts was not noticeably impaired by the thin film, even when using the semicrystalline polyamides PA12, PA1012 and PA101.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une pièce composite comprenant : I. une feuille multicouche comprenant les couches suivantes : a) une couche de matière moulable constituée de polyamide, puis, vers l'intérieur b) une couche d'un agent adhésif contenant entre 5 et 100 % en poids d'un copolymère comportant entre 70 et 99,9 % de motifs monomères issus de composés vinyliques sélectionnés parmi des dérivés de l'acide acrylique, des dérivés de l'acide méthacrylique, des a-oléfines et des composés aromatiques vinyliques, et entre 0,1 et 30 % en poids de motifs monomères comportant un groupe fonctionnel sélectionné entre un groupe anhydride de l'acide carboxylique, un groupe époxy, et un groupe oxazoline; et II. un substrat formé à partir d'une masse moulable constituée de polyalkyl(méth)acrylate.
EP07802788A 2006-08-26 2007-08-22 Pièce composite constituée d'une feuille multicouche et d'un substrat à base d'un polyalkyl(méth)acrylate Withdrawn EP2054223A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610040113 DE102006040113A1 (de) 2006-08-26 2006-08-26 Verbundteil aus einer Mehrschichtfolie und einem Substrat auf Basis eines Polyalkyl(meth)acrylats
PCT/EP2007/058716 WO2008025706A1 (fr) 2006-08-26 2007-08-22 Pièce composite constituée d'une feuille multicouche et d'un substrat à base d'un polyalkyl(méth)acrylate

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EP2054223A1 true EP2054223A1 (fr) 2009-05-06

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US (1) US20100003534A1 (fr)
EP (1) EP2054223A1 (fr)
JP (1) JP2010501380A (fr)
CN (1) CN101511581A (fr)
DE (1) DE102006040113A1 (fr)
WO (1) WO2008025706A1 (fr)

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DE102005007665A1 (de) 2005-02-19 2006-08-31 Degussa Ag Folie auf Basis eines Polyamidblends
DE102006055727A1 (de) * 2006-11-25 2008-05-29 Evonik Degussa Gmbh Verwendung eines synthetischen Wachsoxidats als Verarbeitungshilfsmittel für transparente polare Polymere
DE102008002599A1 (de) * 2008-06-24 2009-12-31 Evonik Degussa Gmbh Bauteil mit Deckschicht aus einer PA613-Formmasse
DE102011084520A1 (de) 2011-10-14 2013-04-18 Evonik Industries Ag Rückfolie für Photovoltaikmodule mit verbesserter Pigmentdispergierung
JP5827180B2 (ja) * 2012-06-18 2015-12-02 富士フイルム株式会社 インプリント用硬化性組成物と基板の密着用組成物およびこれを用いた半導体デバイス
DE102013220135A1 (de) 2013-10-04 2015-04-09 Evonik Industries Ag Polyamidmischung
ES2703179T3 (es) * 2015-10-16 2019-03-07 Henkel Ag & Co Kgaa Procedimiento para soldar los plásticos poliamida y poli(met)acrilato
US12472667B2 (en) 2020-08-07 2025-11-18 Polyplastics-Evonik Corporation Laminate, method for producing same, and use of same
US12145731B2 (en) 2021-12-07 2024-11-19 B/E Aerospace, Inc. Aircraft seat base assembly

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DE4428414A1 (de) * 1994-08-11 1996-02-15 Huels Chemische Werke Ag Thermoplastischer Mehrschichtverbund mit guter Schichtenhaftung
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Also Published As

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CN101511581A (zh) 2009-08-19
DE102006040113A1 (de) 2008-03-06
WO2008025706A1 (fr) 2008-03-06
US20100003534A1 (en) 2010-01-07
JP2010501380A (ja) 2010-01-21

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