EP2291286A1 - Bauteil mit deckschicht aus einer pa613-formmasse - Google Patents

Bauteil mit deckschicht aus einer pa613-formmasse

Info

Publication number
EP2291286A1
EP2291286A1 EP09769217A EP09769217A EP2291286A1 EP 2291286 A1 EP2291286 A1 EP 2291286A1 EP 09769217 A EP09769217 A EP 09769217A EP 09769217 A EP09769217 A EP 09769217A EP 2291286 A1 EP2291286 A1 EP 2291286A1
Authority
EP
European Patent Office
Prior art keywords
layer
substrate
component
film
component according
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Withdrawn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
EP09769217A
Other languages
German (de)
English (en)
French (fr)
Inventor
Roland Wursche
Sonja Bollmann
Franz-Erich Baumann
Beatrice Küting
Kirsten LÜTZELER
Andreas Pawlik
Martin Wielpütz
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 EP2291286A1 publication Critical patent/EP2291286A1/de
Withdrawn legal-status Critical Current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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • 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
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/281—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 comprising polyimides
    • 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
    • B32B27/286—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 comprising polysulphones; polysulfides
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    • 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
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
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    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/584—Scratch resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2451/00—Decorative or ornamental articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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]
    • Y10T428/31507—Of polycarbonate
    • 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
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    • 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
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    • Y10T428/31533—Of polythioether
    • 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
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    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31562—Next to polyamide [nylon, etc.]
    • 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
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    • 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
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    • 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
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    • 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
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Definitions

  • the present invention relates to a component which contains an outer layer or covering layer of a PA613 molding compound.
  • the invention furthermore relates to a decorative film which can be used to produce such a component and which contains a layer based on PA613.
  • Thermoplastic components with a cover layer of a different material are used by default when the surface of the component is to be protected from external influences and possibly decorated.
  • a suggestion to remedy this is the use of multilayer plastic films, which are used to cover the components and no longer need to be painted.
  • the bond between substrate and decorating film can be realized by a number of manufacturing processes.
  • the film can be pressed, for example, with the substrate or you can choose a Schuspritzmaschine, in which the film is inserted in the component manufacturing in the injection mold.
  • the concept of a foil as a decor carrier also meets a trend towards the individualization of design elements on the automobile. This tendency leads namely in the production of a larger range of models, but are reduced in the number of each manufactured components per series. Since the use of foils allows fast, easy design changes, this challenge can be met.
  • the film meets the standards required in the automotive industry with respect to surface properties (Class A surface), resistance to media and visual impression. Films having such properties are also useful in the design of automotive interior surfaces.
  • Such decorative films are known in principle.
  • EP 0 949 120 A1 describes decorative films with polyalkyl methacrylate as the base layer, which may additionally comprise a substrate-side support layer made of polyamide, while WO 94/03337 discloses decorative films whose base layer may consist of a large number of alternative polymers, including polyamide .
  • Another example of a multilayer system is EP 0 285 071 A2.
  • the advantage of a multi-layered structure is that an optimal system solution results from the interaction of the different individual layers.
  • Each layer of the multilayer film fulfills one or more specific functions in the context of the overall system.
  • polyamides in particular polyamides based on PA 12 or PAl 1 are generally well suited for the production of such decorative films. Accordingly, find in the patent literature descriptions of decorative films or protective films containing a cover layer of a polyamide. Examples which may be mentioned here are the publications JP60155239A, JP2003118055A, EP 1 302 309 A, EP 0 522 240 A, EP 0 694 377 A, EP 0 734 833 A, WO 9212008 A, WO 2006008357 A, WO 2006008358 A and EP 0 568 988 A.
  • Transparent components such as lenses, displays, glazings, sight glasses, etc. are often made of amorphous materials such as polycarbonate, PMMA or transparent polyamides. These have a good transparency, but show a poor chemical resistance and low scratch resistance. For applications in which contact of such materials with chemicals or solvents may occur, the low chemical resistance is disadvantageous, since it can cause phenomena such as turbidity or cracking. Poor scratch resistance shortens the life of the transparent objects as scratching also leads to undesirable clouding.
  • a cover layer of a partially crystalline polyamide can be used to achieve improved resistance of transparent objects to chemicals.
  • EP 0 696 501 A2 describes that this deficiency can be remedied by a well-adhering coating of polyalkyl (meth) acrylate molded parts with polyamide, in which case an adhesion promoter must be used.
  • the application of this concept to polyarylate molded parts is described in DE 197 02 088 A1. Further state of the art can be found in WO 2005/123384, WO 2006/072496, WO 2006/087250, WO 2006/008357 and WO 2006/008358;
  • the object of the invention is to provide a component whose surface is characterized by improved scratch resistance and high chemical resistance.
  • the material of the cover layer should be so transparent that even with larger layer thicknesses transparent components can be produced when the substrate of the component is transparent.
  • decorative films should be provided with an aliphatic polyamide cover layer which are suitable for producing such components, on the one hand, the transparency of the cover layer should be improved over the prior art;
  • the molding composition of the cover should be sufficiently crystalline to ensure sufficient stress cracking resistance and solvent and chemical resistance.
  • the formation of deposits should be suppressed as completely as possible.
  • a cover layer of a molding composition which is at least 50 wt .-%, preferably at least 60 wt .-%, particularly preferably at least 70 wt .-%, particularly preferably at least 80 wt .-% and very particularly preferably at least 90 wt. contains% of PA613, as well
  • IL is a substrate made of a thermoplastic molding material.
  • PA613 can be prepared in a known manner by polycondensation of hexamethylenediamine and 1,13-tridecanoic acid.
  • the PA613 is preferably a homopolymer; but it can also be a copolymer having a maximum of 30 mol%, preferably not more than 20 mol% and particularly preferably not more than 10 mol% of one or more comonomer units.
  • the comonomer units can be derived from any monomer conventionally used to prepare polyamides, for example caprolactam, laurolactam, sebacic acid, dodecanedioic acid, 1,10-decanediamine, 1,12-dodecanediamine, 4,4'-diaminodicyclohexylmethane or isophoronediamine.
  • monomer conventionally used to prepare polyamides for example caprolactam, laurolactam, sebacic acid, dodecanedioic acid, 1,10-decanediamine, 1,12-dodecanediamine, 4,4'-diaminodicyclohexylmethane or isophoronediamine.
  • the PA613 has up to 45%, maximum 40%, maximum 35%, maximum 30% or maximum 25% of all end groups of amino groups. In this way, a yellowing of the film by thermo-oxidative damage can be avoided.
  • the preparation of such end notegeregelten polyamide by the addition of a dicarboxylic acid or monocarboxylic acid as a regulator is state of the art.
  • the molding composition based on PA613 may additionally contain, for example, the following further components:
  • nucleating agents selected from nanoscale fillers and basic metal salts, metal oxides or metal hydroxides; the latter are added to ensure the desired transparency, at most in such an amount as they can be dissolved in the melt in reaction with the carboxyl end groups of the polyamide; b) customary auxiliaries or additives in the amounts customary for polyamide molding compositions, for example stabilizers, UV absorbers or lubricants, c) colorants which do not significantly affect the transparency, d) fillers whose refractive index is only slightly different from that of the matrix differs or exactly matches (isorefractive fillers), e) other polymer components whose refractive index differs only slightly from or corresponds exactly to that of the matrix, and nucleating agents based on organic compounds, which do not substantially affect the transparency.
  • nucleating agents selected from nanoscale fillers and basic metal salts, metal oxides or metal hydroxides; the latter are added to ensure the desired transparency, at most in such an amount as they can be dissolved in the melt in reaction with the carboxy
  • Any existing nanoscale fillers have a number average effective particle diameter dso in the molding composition of less than 150 nm, preferably less than 120 nm, more preferably less than 90 nm, more preferably less than 70 nm and most preferably less than 50 nm or less than 40 nm.
  • the effective particle diameter should not be confused with the diameter of the primary particles. For the transparency, not the latter is crucial, but what matters is the size of the aggregates or agglomerates that are actually present in the molding composition. In the case of very good dispersion, however, the effective particle diameter may, in the limiting case, fall to the diameter of the primary particles.
  • the determination of effective particle diameters of nanoscale particles or their aggregates or agglomerates in molding compositions and the associated distribution function is carried out by preparing a thin section of the molding composition.
  • a thin section of the molding composition For polyamides a low-temperature thin-section at -100 0 C is made advantageously.
  • a Number of TEM images made to allow a statistical evaluation of a sufficiently large number of particles. Depending on the case, this number of particles is at least two hundred, but better still a thousand particles. With the aid of an evaluation program, the particles are measured in terms of their diameter. The obtained data is converted into a distribution function.
  • the transparency of the molding composition when measured according to ASTM D 1003 on a film with a thickness of 200 microns and at a light wavelength of 589 nm may be deteriorated by at most 2%.
  • the cover layer, a possibly present adhesion promoter layer and any further layers present contain at most 1% by weight of nanoparticles. This amount is perfectly adequate for the purpose of nucleation or laser marking.
  • the polyamide molding compound according to I. may contain not more than 20% by weight, not more than 16% by weight, not more than 12% by weight, not more than 8% by weight or not more than 4% by weight of auxiliaries or additives % By weight, based on the total polyamide composition.
  • the molding composition may also contain at least one further polyamide, preferably one whose monomer units contain on average at least 8 carbon atoms such as PA610, PA612, PA614, PA88, PA810, PA812, PA101, PA1012, PA1014, PA1212, PAI1 or PA12.
  • at least one further polyamide preferably one whose monomer units contain on average at least 8 carbon atoms such as PA610, PA612, PA614, PA88, PA810, PA812, PA101, PA1012, PA1014, PA1212, PAI1 or PA12.
  • Suitable substrates are, for example, molding compositions based on Polyolef ⁇ nen, polyamides, polyesters, polyacrylates, polycarbonates, ABS, polystyrene or styrene copolymers and curable systems z. B. based on epoxy resin or polyurethane.
  • the substrate has a maximum of at least 30% and preferably of at least 35%, 40%, 45%, 50%, 55% in the visible spectrum of 380 to 800 mm in the transmission curve at a layer thickness of 1 mm.
  • Such substrates are largely transparent.
  • the substantially transparent polymer which forms the basis for the molding material of the substrate is not limited in type. In principle, any known largely transparent polymers can be used.
  • polyamides examples include polyamides, polyalkyl (meth) acrylates, polycarbonate, polyester carbonate, polyesters, polyimides, polyetherimides, polymethacrylimides, polysulfone, styrene polymers, polyolefins with cyclic building blocks, olefin-maleimide copolymers or polymers based on vinylcyclohexane.
  • the substantially transparent polymer preferably has a melting enthalpy of less than 12 J / g, preferably less than 8 J / g, more preferably less than 6 J / g, more preferably less than 4 J / g and most preferably less as 3 J / g, measured by the DSC method according to ISO 11357 at the 2nd heating and integration of the possibly existing melting peak.
  • substantially transparent polyamides which can be used according to the invention are: the polyamide of terephthalic acid and / or isophthalic acid and the mixture of isomers
  • Caprolactam the polyamide of 1.12-dodecanedioic acid and 4.4'-diaminodicyclohexylmethane (at low trans, trans isomeric content), the copolyamide of terephthalic acid and / or isophthalic acid and an alkyl-substituted
  • Dicarboxylic acid such as terephthalic acid and / or 2,6-naphthalenedicarboxylic acid, the copolyamide from a mixture of bis (4-amino-cyclohexyl) methane and bis (4-amino
  • polyalkyl (meth) acrylates having 1 to 6 C atoms in the carbon chain of the alkyl radical, the methyl group being preferred as the alkyl group.
  • the 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 load of 3 , 8 kg.
  • Examples include polymethylmethacrylate and polybutylmethacrylate mentioned.
  • copolymers of the polyalkyl (meth) acrylates it is also possible to use copolymers of the polyalkyl (meth) acrylates.
  • So can to 50 wt .-%, preferably up to 30 wt .-% and particularly preferably up to 20 wt .-% of the alkyl (meth) acrylate by other monomers such as (meth) acrylic acid, styrene, acrylonitrile, acrylamide or the like. Also suitable are copolymers of methyl methacrylate and dicyclopentyl methacrylate.
  • the molding composition can be adjusted to high impact strength, for example by adding a core / shell rubber customary for such molding compositions.
  • thermoplastics such as SAN (styrene / acrylonitrile Copolymer) and / or polycarbonate.
  • the substrate may be composed of a molding compound containing a polycarbonate as a main component.
  • Polycarbonates suitable according to the invention contain units which are carbonic acid diesters of diphenols.
  • diphenols may be, for example, the following: hydroquinone, resorcinol, dihydroxybiphenyls, bis (hydroxyphenyl) alkanes, bis (hydroxyphenyl) cycloalkanes, bis (hydroxyphenyl) sulfites, bis (hydroxyphenyl) ethers, bis (hydroxyphenyl) ketones, bis (hydroxyphenyl) sulfones, bis (hydroxyphenyl) sulfoxides, ⁇ , ⁇ '-bis (hydroxyphenyl) diisopropylbenzenes and their ring-alkylated or nuclear-halogenated derivatives or else ⁇ , ⁇ -bis (hydroxyphenyl) - polysiloxane.
  • Preferred diphenols are, for example, 4,4'-dihydroxybiphenyl, 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, 1 , 1-bis (4-hydroxyphenyl) cyclohexane, 2,4-bis (4-hydroxyphenyl) -2-methylbutane, 1,1-bis (4-hydroxyphenyl) -1-phenylethane, 1,1-bis - (4-hydroxyphenyl) -p-diisopropylbenzene, 1, 3-bis [2- (4-hydroxyphenyl) -2-propyl] benzene, 2,2-bis (3-methyl-4-hydroxyphenyl) -propane, 2,2-bis (3-chloro-4-hydroxyphenyl) -propane, bis (3,5-dimethyl-4-hydroxyphenyl) -methane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl
  • the diphenols can be used both alone and in admixture with each other.
  • the diphenols are known from the literature or can be prepared by methods known from the literature (see, for example, BHJ Buysch et al., Ullmann's Encyclopedia of Industrial Chemistry, VCH, New York 1991, 5th ed. Vol. 19, p. 348).
  • the polycarbonates used according to the invention are prepared by known processes, for example by the phase boundary process or by the melt transesterification process. They have weight average molecular weights M w (determined by gel permeation chromatography and polystyrene standard calibration) of between 5,000 and 200,000, preferably between 10,000 and 80,000 and more preferably between 15,000 and 40,000.
  • the polycarbonate molding composition can, for example, to less than 50 wt .-%, preferably less than 40 wt .-%, more preferably less than 30 wt .-% and particularly preferably less than 20 wt .-%, based on the total Polymer base, other polymers such as polyethylene terephthalate, polybutylene terephthalate, polyesters of cyclohexanedimethanol, ethylene glycol and terephthalic acid, polyesters of cyclohexanedimethanol and cyclohexanedicarboxylic acid, polyalkyl (meth) acrylates, SAN, styrene (meth) acrylate copolymers, polystyrene (amorphous or syndiotactic), polyetherimides , Polyimides, polysulfones and / or polyarylates (eg based on bisphenol A and isophthalic acid / terephthalic acid).
  • Polyestercarbonates are composed of at least one diphenol, of at least one aromatic dicarboxylic acid and of carbonic acid. As diphenols the same as for polycarbonate are suitable.
  • the amount derived from aromatic dicarboxylic acids, based on the sum of the parts derived from aromatic dicarboxylic acids and from carbonic acid, is at most 99.9 mol%, at most 95 mol%, at most 90 mol%, at most 85 mol%, at most 80 Mo is 1% or at most 75 Mo 1%, while its minimum content is 0.1 mol%, 5 mol%, 10 mol%, 15 mol%, 20 mol% or 25 Mo 1%.
  • Suitable aromatic dicarboxylic acids are, for example, orthophthalic acid, terephthalic acid, isophthalic acid, tert-butyl isophthalic acid, 3,3'-diphenyldicarboxylic acid, 4,4'-diphenyl ether dicarboxylic acid, 4,4'-diphenylsulfonedicarboxylic acid, 3,4'-benzophenone dicarboxylic acid, 2,2-bis (4-carboxyphenyl) -propane and trimethyl-3-phenylindane-4,5-dicarboxylic acid.
  • terephthalic acid and / or isophthalic acid are preferably used.
  • Suitable thermoplastic polyesters are preferably either fully aromatic or mixed aliphatic / aromatic.
  • the first case is polyarylates; these are derived of diphenols and aromatic dicarboxylic acids.
  • diphenols the same as for polycarbonate are suitable, while as dicarboxylic acid are the same as suitable for polyester carbonates.
  • the polyesters are derived from one or more aromatic dicarboxylic acids and one or more diols; for example, it is polyethylene terephthalate or copolyesters of terephthalic acid, 1,4-cyclohexanedimethanol and ethylene glycol.
  • Suitable polysulfones are generally prepared by polycondensation of a diphenol / Dihalogendiarylsulfon mixture in an aprotic solvent in the presence of a base such. B. sodium carbonate.
  • diphenol it is possible, for example, to use those which are also suitable for the preparation of polycarbonates, but in particular bisphenol A, 4,4'-dihydroxydiphenylsulfone, 4,4'-dihydroxydiphenyl and hydroquinone, although it is also possible to use mixtures of different diphenols.
  • the dihalogen compound is in most cases 4,4'-dichlorodiphenylsulfone; however, it is also possible to use any other dihalogen compound in which the halogen is activated by a para-positional sulfone group.
  • fluorine is also suitable in addition to chlorine.
  • polysulfone also includes the polymers commonly referred to as “polyethersulfone” or “polyphenylene sulfone.” Suitable types are commercially available.
  • Polyimides are prepared in a known manner from tetracarboxylic acids or their anhydrides and diamines. When the tetracarboxylic acid and / or the diamine contains an ether group, a polyetherimide results.
  • a particularly suitable ether-containing tetracarboxylic acid is the compound I; from it are obtained together with aromatic diamines amorphous polyetherimides, which are commercially available.
  • polyacrylimides are polymethacrylimides, sometimes referred to as polyacrylimides or polyglutarimides. These are products based on Polyalkylacrylates or polyalkyl methacrylates in which two adjacent carboxylate groups have been converted to a cyclic acid imide. The imide formation is preferably with ammonia or primary amines, such as. As methylamine performed.
  • the products and their preparation are known (Hans R. Kricheldorf, Handbook of Polymer Synthesis, Part A, Publisher Marcel Dekker Inc. New York-Basel-Hong Kong, p 223 f., HG Elias, macromolecules, Wegig and Wepf Verlag Basel- Heidelberg-New York; US 2,146,209 A; US 4,246,374).
  • Suitable styrene polymers are, for example, homopolystyrene or copolymers of styrene with up to 50 mol%, based on the monomer mixture, of other monomers such. For example, methyl methacrylate, maleic anhydride, acrylonitrile or maleimides. Styrene-maleimide copolymers are also accessible, for example, by reacting styrene-maleic anhydride copolymers with ammonia or primary amines such as methylamine or aniline.
  • Polyolefins with cyclic building blocks can be prepared by copolymerization of at least one cyclic or polycyclic olefin, for example norbornene or tetracyclododecene, with at least one acyclic olefin, for example ethene (WO 00/20496, US Pat. No. 5,635,573, EP-A-0 729 983, EP -AO 719 803).
  • This substance class is called COC.
  • COP Suitable class of compounds, commonly referred to as COP, are optionally hydrogenated products of the ring-opening metathetic polymerization of polycyclic olefins, for example norbornene, dicyclopentadiene, substituted derivatives or Diels-Alder adducts thereof (EP-A-0 784 066, WO 01/14446, EP-A-0 313 838, US 3 676 390, WO 96/20235).
  • polycyclic olefins for example norbornene, dicyclopentadiene, substituted derivatives or Diels-Alder adducts thereof (EP-A-0 784 066, WO 01/14446, EP-A-0 313 838, US 3 676 390, WO 96/20235).
  • Olefm-maleimide copolymers are known, for example, from US Pat. No. 7,018,697.
  • Vinylcyclohexane-based polymers can be prepared either by polymerization or copolymerization of vinylcyclohexane or by catalytic hydrogenation of styrene polymers (WO 94/21694, WO 00/49057, WO 01/30858, FS Bates et al., PCHE-Based Pentablock Copolymers: Evolution of a New Plastic, AIChE Journal Vol. 47, No. 4, pp. 762 -
  • the molding material of the substrate may also contain other conventional auxiliaries or additives such.
  • auxiliaries or additives such as stabilizers, processing aids, flame retardants, plasticizers, antistatic agents, isorefractive fillers or reinforcing agents, isorefractive impact modifiers, dyes that do not significantly affect the transparency, flow agents, mold release agents or other polymers that do not significantly affect the transparency. If the substrate does not need to be transparent in use, the fillers and reinforcing agents as well as the impact modifiers need not be isorefractive. Also in the case of the dyes, any pigments present and any other polymers present, there are no restrictions in this case.
  • the amount of all auxiliaries and additives is a total of at most 50 wt .-%, preferably at most 40 wt .-%, more preferably at most 30 wt .-% and particularly preferably at most 20 wt .-%.
  • the bonding of the cover layer to the substrate can be done in any known manner, for example by multi-component injection molding, coextrusion, injection molding of a film, foaming of a film, extrusion laminating, laminating, pressing or gluing.
  • the multi-component injection molding is used to produce moldings with layers or areas of different plastics or colorations.
  • Various process variants are possible, which are known to the person skilled in the art.
  • two or more injection molding units are used, which work successively in a tool. After the first unit has filled a tool cavity, the mold cavity for the second unit injection molding operation is increased, for example, by traversing the tool halves, rotating tool halves or core pull motions to release additional cavity areas. It is also possible to work sequentially with several tools on standard one-component machines by inserting molded parts into the next tool and spraying the following component on.
  • a partial filling of the tool is carried out with the first unit and the melt of the second unit displaces the melt of the first from the core area to the surface of the molded part, wherein the finished component has a skin-core structure ( Sandwich structure).
  • Sandwich structure Another variant is the monosandwich process, in which the melts are conveyed via two separate plasticizing units into a common injection space and spatially stacked one behind the other. During injection, one component displaces the other component to the surface.
  • Multilayer structures e.g. Plates, for example, can be produced by coextrusion.
  • coextrusion several melt streams of the same or different types of plastics are combined.
  • the process variants are known to the person skilled in the art.
  • the union of melts before, in or behind a tool can be done.
  • Merging the melts behind (for example, blow molding) or in the mold offers the advantage that the melts can be tempered at different temperatures.
  • the melts are brought together before they enter the forming tool.
  • the multi-layered structures e.g., multi-layered plates
  • the coextrusion process can be supplemented by a subsequent blow molding process.
  • the film In the case of an in-mold film, the film, if appropriate after previous forming (for example thermoforming), is placed in an injection mold and then charged with the melt of the substrate. The result is a composite component.
  • previous forming for example thermoforming
  • the tool After inserting the film, the tool is only partially filled with melt and then the tool space is reduced in a controlled manner by displaceable parts, similar to the injection-compression molding process.
  • Backfoaming of deep-drawn foils offers advantages for large-area and flat components where back injection molding machines and tools would be very cost-intensive.
  • a mixture of long-glass fibers and polyurethane foam can be applied to the back of a deep-drawn part. After curing of the polyurethane-glass mixture to obtain components with high rigidity and heat resistance at low weight.
  • the composite material can also be produced by further processes, for example by extrusion laminating.
  • a prefabricated substrate is continuously combined with a prefabricated cover layer, wherein the compound by a plastic melt is brought in, which is fed to the point of contact of the former components.
  • a variant consists in extruding the substrate material onto the prefabricated cover layer or the cover layer on a prefabricated substrate.
  • Another possibility is provided by continuous lamination processes, the connection being realized by the introduction of adhesives (solvent-based, hotmelt, etc.).
  • composites may also be made by compression molding, the bond between the prefabricated joining partners being affected by the action of pressure and temperature, e.g. in a press, is evoked.
  • adhesives, etc. may be additionally used.
  • a welding process (eg laser welding) is also possible for joining the cover layer and substrate or semifinished product and substrate.
  • 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.
  • connection between cover layer and substrate can be done by positive locking, for example by means of undercuts.
  • a cohesive compound is preferred.
  • the materials must adhere to each other, which is effected for example by chemical attachment or by entanglement of the macromolecules.
  • an adhesion promoter can be used, for example, a multilayer film containing a substrate-side primer layer.
  • the nature of the bonding agent is not critical; however, it should preferably be sufficiently transparent at the selected layer thickness.
  • the adhesion promoter contains a blend of a polymer that is identical or similar to the polymer of the adjacent film layer and a polymer that is identical or similar to the polymer of the substrate.
  • Similar means that the polymers in question can be mixed in the melt into phase-stable blends or that layers of both polymers have sufficient adhesion to one another after coextrusion or back-injection, ie the polymers are compatible with one another
  • the blend is usually prepared by melt blending and suitable weight percent mixing ratios are 20-80: 80-20, preferably 30-70: 70-30, and more preferably 40-60: 60-40 a compatibilizer can also be used, for example a branched polymer such as a polyamine-polyamide graft copolymer (EP-A-065 048), a polymer having reactive groups capable of undergoing a chemical reaction with at least one of the blend partners, or a block copolymer. In many cases s ind also polyurethanes suitable as adhesion promoters.
  • the adhesion promoter contains 2 to 100 wt .-%, preferably 5 to 90 wt .-%, particularly preferably 10 to 80 wt .-%, particularly preferably 15 to 60 wt .-% and most preferably 20 to 40 %
  • the copolymer preferably contains the following monomer units:
  • 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 the formula (VII) are derived from glycidyl acrylate or glycidyl methacrylate and the units of the formula (VIII) are from vinyloxazoline or isopropenyloxazoline.
  • the following units contain:
  • polyacrylimides or polymethacrylimides In the presence of units of formula (V), such copolymers are referred to as polyacrylimides or polymethacrylimides or sometimes also as polyglutarimides.
  • These are products starting from polyalkyl acrylates or polyalkyl methacrylates, in which two adjacent carboxylate groups have been converted to a cyclic acid imide.
  • the imide formation is preferably with ammonia or primary amines, such as.
  • the products and their preparation are known (Hans R.
  • Such copolymers are prepared in a known manner by free-radically initiated copolymerization of z.
  • 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.
  • copolymers are accessible in a known manner by free-radically initiated copolymerization of acrylic acid, methacrylic acid and / or their esters, acrylic or methacrylonitrile and unsaturated carboxylic anhydrides.
  • 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 Schlagzähmodifier, z. B. an acrylate rubber.
  • the adhesion promoter contains 2 to 99.9 wt .-%, preferably 5 bis 90 wt .-%, particularly preferably 10 to 80 wt .-%, particularly preferably 15 to 60 wt .-% and very particularly preferably 20 to 40 wt .-% of the copolymer and 0.1 to 98 wt .-%, preferably 10 to 95 wt .-%, particularly preferably 20 to 90 wt .-%, particularly preferably 40 to 85 wt .-% and very particularly preferably 60 to 80 wt .-% of a polymer which is selected from the group of polyamide adjacent Film layer, polymer of the substrate, polyamide similar to the polyamide of the adjacent film layer, polymer similar to the polymer of the substrate, or mixtures thereof.
  • the primer can the usual auxiliaries and additives such. As flame retardants, stabilizers, plasticizers, processing aids, dyes or the like. The amount of the said agents should be metered so that the desired properties are not seriously affected.
  • the component is produced by bonding a decorative film to the substrate.
  • Decorative films in the context of the invention are films which can be printed and / or contain a color layer and are furthermore intended to be connected to a substrate in order to decorate the surface thereof.
  • the decoration can also be effected by concealing optical defects of the surface, e.g. B. by a resulting from fillers or reinforcing materials surface roughness is covered.
  • the decorative film according to the invention is single-layered or multi-layered.
  • the type and number of the remaining layers depend on the application requirements; It is only decisive that the cover layer consists of the molding composition used according to the invention.
  • the following embodiments are possible: 1.
  • the film is single-layered. It consists in this case by definition only of the cover layer; by printing z. B. by means of Thermosublimationstik can be mounted either on the top or the bottom decors.
  • the film contains, in addition to the top layer, an underlying color layer.
  • the color layer may be a lacquer layer; However, it is, according to the prior art, preferably from a colored thermoplastic layer.
  • the thermoplastic may, for example, have the same or a similar composition as the cover layer, contain a component thereof or another polyamide or another polymer which either adheres directly to the cover layer or by means of a sufficiently transparent adhesion promoter (for example, a carboxyl or Acid anhydride groups or epoxy group-functionalized polyolefin, a thermoplastic polyurethane or a blend of the constituents of the layers to be bonded).
  • a sufficiently transparent adhesion promoter for example, a carboxyl or Acid anhydride groups or epoxy group-functionalized polyolefin, a thermoplastic polyurethane or a blend of the constituents of the layers to be bonded.
  • As a colorant z As organic dyes, inorganic or organic pigments or metal flakes are used. Since the cover layer
  • the film contains, in addition to the cover layer and, where appropriate, the color layer, a further layer which, as a carrier layer, effects a sufficient mechanical strength and, if appropriate, additionally a connection to the substrate.
  • the film contains, in addition to the cover layer and, where appropriate, the color layer, an underlying adhesion promoter layer for connection to the substrate.
  • Suitable adhesion promoters are, for example, a polyolefin functionalized with carboxyl or acid anhydride groups or with epoxide groups, a thermoplastic polyurethane, a blend of the materials of the layer to be bonded and the substrate or one of the adhesion promoters described in more detail above.
  • the film also contains an underlying adhesion promoter layer for attachment to the substrate.
  • adhesion agent the same applies as under point 4.
  • one of items 1 to 5 contains as needed, for. B. with increased demands on the scratch resistance, on the top layer nor a protective layer, such as a clearcoat based on polyurethane. It is possible to use coating compositions which are curable in two stages. For example, a film having such a coating may still be reformed after the first curing step; the second curing step takes place only on the formed film or on a molded part produced, for example, by injection-molding of the film.
  • a protective layer in the form of a lacquer may be used to increase the scratch resistance according to the prior art also z. B. be modified with nanoparticles.
  • the film may optionally also contain a removable protective film laminated, which acts as a transport or mounting protection and is withdrawn, for example, after the production of the composite part.
  • the transparent cover layer can be printed like a monofilm from one side or from both sides, in order then to be connected to the other layers in a second step to form the multilayer film.
  • the transparent cover layer can be printed from above.
  • the cover layer can also be colored transparent or opaque.
  • the color layer and / or the carrier layer and / or the adhesion promoter layer contains a molding composition, in particular a polyetheramide or a polyetheresteramide, and preferably a polyetheramide or polyetheresteramide based on a linear aliphatic diamine having from 6 to 18 and preferably 6 to 12 carbon atoms. Atoms, a linear aliphatic or aromatic dicarboxylic acid having 6 to 18 and preferably 6 to 13 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.
  • the molding composition of this layer may contain other blend components such as.
  • polyacrylates or polyglutarimides with carboxyl or carboxylic anhydride groups or epoxide groups a functional group-containing rubber and / or a polyamide.
  • Such molding compounds are state of the art; you are For example, in EP 1 329 481 A2 and DE-OS 103 33 005, which is incorporated herein by reference.
  • the polyamide content of the polyamide elastomer is composed of the same monomers as used in the cover layer. However, this is not absolutely necessary in order to achieve good adhesion.
  • the color layer and / or the carrier layer may also contain, in addition to a polyamide, a customary impact-modifying rubber.
  • the film has a thickness of 0.02 to 1.2 mm, particularly preferably 0.05 to 1 mm, very particularly preferably 0.08 to 0.8 mm and particularly preferably 0.15 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 cover layer When the component is produced by multi-component injection molding, the cover layer usually has a thickness of 0.1 to 10 mm, preferably 0.2 to 7 mm and particularly preferably 0.5 to 5 mm. Under special process conditions, layer thicknesses below 0.1 mm are possible. Low thicknesses generally lead to better transparency of the component.
  • the cover layer When produced by coextrusion, the cover layer usually has a thickness of 0.02 to 1.2 mm, preferably from 0.05 to 1.0 mm, particularly preferably from 0.08 to 0.8 mm and particularly preferably from 0, 12 to 0.6 mm. These thickness specifications for the cover layer also apply to the cover layer of the decorative film according to the invention.
  • the substrate can be of any thickness. In general, it has a thickness in the range of 0.5 to 100 mm, preferably in the range of 0.8 to 80 mm, more preferably in the range of 1 to 60 mm, particularly preferably in the range of 1, 2 to 40 mm and most preferably in the Range from 1.4 to 30 mm. Other preferred upper limits of thickness are 25 mm, 20 mm, 15 mm, 10 mm, 6 mm, 5 mm and 4 mm. The thickness should be chosen so that the component has the required rigidity.
  • the component according to the invention is not a foil; In contrast, it is dimensionally stable.
  • the component according to the invention is used as a transparent, for example as an optical component.
  • examples include lenses, headlamp lenses, rear lights, lenses, prisms, lenses, displays, decorative display components, lighting system components, backlit switches, any type of glazing, and cell phone cases.
  • the film of the invention 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 a plastic 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 cladding of so-called A-pillars on the car or trim and trim strips of all kinds. Another example are protective panels for door sills.
  • the films of the invention In addition to applications in the exterior of the motor vehicle and components of the interior can be favorably decorated by the films of the invention, in particular trim elements such as strips and panels, as in the interior impact resistance and resistance to chemicals, such as cleaning agents is required.
  • the plastic substrate does not have to be transparent here. In the automotive industry are often used as substrates reinforced molding compounds containing, for example, glass fibers or talc and are therefore not transparent. To demand a transparency of the substrate makes z. B. also makes no sense if a covering color layer is used in a multilayer film composite.
  • the film according to the invention is used as a top covering for sports equipment, for example snowboards of all kinds, such as skis or snowboards.
  • sports equipment for example snowboards of all kinds, such as skis or snowboards.
  • the ski is produced according to the so-called monocoque system, wherein the topping is first constructed from two plastic films, of which the outer is transparent and the inner opaque (white). Before the two films are glued together and the subsequent deep drawing, the outside of the transparent top film and one of the later contact surfaces between the transparent top film and the opaque bottom film are printed with different decorations.
  • Suitable plastics for the top film are acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-styrene copolymer (AS), thermoplastic polyurethane (TPU) and aliphatic polyamides, especially PAl 1 and PA 12.
  • ABS acrylonitrile-butadiene-styrene copolymer
  • AS acrylonitrile-styrene copolymer
  • TPU thermoplastic polyurethane
  • aliphatic polyamides especially PAl 1 and PA 12.
  • copolyamides are mentioned in addition to polyester amides, polyetheramides, modified polyolefins and styrene-carboxylic anhydride copolymers.
  • the connection of the top covering with the ski or snowboard can also be done after all other known shaping and bonding methods.
  • a monofilm is used according to the invention, it is transparent and is preferably printed on the underside, in which case a white or possibly differently colored adhesive is used as the optical background for joining the film to the ski.
  • a coextruded two-layer film preferably consists of a transparent top layer and a white or colored pigmented underlayer as the background, the film being printed on top.
  • the film can be decorated, for example, by screen printing or offset printing, but it can also be printed well by means of thermal diffusion or sublimation printing. These thermal printing processes often require increased heat resistance of the films or moldings.
  • the film can also be used, for example, as a protective film against contamination, UV radiation, weathering, chemicals or abrasion, as a barrier film on vehicles, in the home, on floors, tunnels, tents and buildings or as a decor carrier, for example for top coverings of boats, aircraft, in the household or on buildings.
  • the relative viscosity ⁇ re i of the polyamides was determined according to DIN EN ISO 307. The determination of the end groups was carried out in the usual way by titration.
  • the starting materials were melted in a nitrogen atmosphere and heated with stirring in a closed autoclave to about 190 0 C, with an internal pressure of about 14 bar. This internal pressure was maintained for 3 hours; Thereafter, the melt was heated to about 215 0 C and stirred at the adjusting internal pressure of about 20 bar. With continuous depressurization to normal pressure was then further heated to 250 0 C internal temperature. Nitrogen was passed through the melt for about 1 hour while maintaining the 250 ° C. viscosity requirement until the desired torque was indicated. The discharge of the melt took place by means of a gear pump as a strand, the granulation was fed. The granules were dried for 16 hours under water pump vacuum at 80 0 C.
  • the product resulting from the product of Example 1 was Festphasennachkondensationen ZSK30 M9 / 1 (K3) is present in a kneader of the type Werner + Pfieiderer with a cylinder temperature of 250 0 C at 250 rpm and a throughput of 8 kg / h, with the addition of 0.7 .-% compounded of a conventional stabilizer composition.
  • Admer ® QF551E (functionalized polypropylene): 110 ⁇ m
  • Cover layer made of PAl 2.
  • Monofilms of 190 ⁇ m thickness were used for the wash brush test on an Engel Victory 650/200 # 159202 injection molding machine with a high-gloss tool with a PA12
  • the transmission was measured on monofilms of thickness 1000 ⁇ m according to ISO 13468-2; see Table 1. It can be seen that the films of PA613 have improved transparency compared to the other polyamides.
  • the rapid weathering was carried out on multilayer films in a Weathering Tester, QUV / se model of the company Q-Panel in two steps.
  • Step 1 55 ° C., exposure 0.98 W / m 2 at 340 nm, 4 h step 2: 45 ° C., condensation without exposure, 4 h
  • the gloss profile was determined at defined time intervals on the stored multilayer films; see Table 2.
  • the heat storage (24 h at 120 0 C) was carried out in a convection oven, wherein prior to storage, after 1 h and after 24 h storage gloss measurements were carried out; see table
  • Table 1 Transmission at 400 nm and 1000 ⁇ m film thickness

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP09769217A 2008-06-24 2009-06-23 Bauteil mit deckschicht aus einer pa613-formmasse Withdrawn EP2291286A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810002599 DE102008002599A1 (de) 2008-06-24 2008-06-24 Bauteil mit Deckschicht aus einer PA613-Formmasse
PCT/EP2009/057750 WO2009156368A1 (de) 2008-06-24 2009-06-23 Bauteil mit deckschicht aus einer pa613-formmasse

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EP (1) EP2291286A1 (ja)
JP (1) JP5523453B2 (ja)
KR (1) KR20110048488A (ja)
CN (1) CN102076497A (ja)
BR (1) BRPI0914201A2 (ja)
CA (1) CA2724526A1 (ja)
DE (1) DE102008002599A1 (ja)
WO (1) WO2009156368A1 (ja)

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US20110045269A1 (en) 2011-02-24
DE102008002599A1 (de) 2009-12-31
JP2011525438A (ja) 2011-09-22
KR20110048488A (ko) 2011-05-11
CN102076497A (zh) 2011-05-25
BRPI0914201A2 (pt) 2019-03-12
WO2009156368A1 (de) 2009-12-30
CA2724526A1 (en) 2009-12-30
JP5523453B2 (ja) 2014-06-18

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