DE8711074U1 - Plastic film web for the manufacture of instrument panels or control panels for motor vehicles - Google Patents

Description

^."Plastic film web for the manufacture of instrument panels or control panels for motor vehicles"&rgr;

The present invention relates to a plastic film web for the production of instrument panels or switch panels for motor vehicles, optionally containing depressions, elevations, recesses and/or (material-thinned or material-thickened) areas, in particular for recesses to be made subsequently, in particular for motor vehicle instruments, speedometers and tachometers and/or other car accessories, wherein the plastic film web, preferably for the production of instrument panels or switch panels, contains at least one plastic film with a thickness of 200 - 2,000 μm, preferably 500 1.30C μm, and at least one surface layer arranged directly thereon or with the interposition of a plastic layer, printing layer or adhesive layer.

The aim and object of the present invention was to improve the properties of the plastic film web and the instrument panels or control panels produced therefrom by thermoforming, in particular the surface properties, in particular haptics (ease of grip) and the like, should be improved, since in general these treated plastic film webs, instrument panels or control panels need improvement in their surface properties or are not easy to grip.

According to the invention, it was found that these aims and objects are achieved by a plastic film web for the production

of instrument panels or control panels for motor vehicles, possibly containing depressions, elevations, recesses and/or material-thinned or material-thickened areas, in particular for recesses to be made subsequently, in particular for motor vehicle instruments, speedometers and tachometers and/or other car accessories, wherein the plastic film web contains at least one plastic film with a thickness of 200 - 2,000 μm, preferably 500 - 1,300 μm, and at least one surface layer arranged thereon directly or with the interposition of a plastic layer, printing layer or adhesive layer, where the surface layer consists of a 10 - 200 μm thick, preferably 30 - 120 μm thick, lacquer layer.

The lacquer layer preferably consists of a polyurethane resin lacquer, preferably a two- or multi-component polyurethane resin lacquer, or contains the same.

The lacquer layer preferably has a Shore A hardness of 20 - 100, preferably 40 - 70, whereby the polyurethane resin lacquer is preferably produced using aliphatic isocyanates.

The polyurethane resin coating contains additives and/or processing aids, preferably matting agents, UV stabilizers, antioxidants, dyes, pigments and/or whitening agents.

According to a preferred embodiment, the plastic-oil web consists of 90 - 25 wt.%, preferably 85 - 28 wt.%, of a vinyl chloride homo-, -co-,

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-Graft polymer and/or an alloy or*
Mixture based on polyvinyl chloride, 10 - 75
% by weight preferably 15 - 72 wt.-^. (based on 100
Weight-i of the plastic mixture or alloy without
additives, fillers, stabilizers, processing aids), at least one modifier with a glass transition temperature of greater
than 70 ⁰ C, preferably greater than 80 ⁰ C, and/or
at least one modifier and a glass transition temperature of less than 60 ⁰ C, preferably less than 50 ⁰ C, and additionally at least
a stabilizing agent or stabilizing agent*
mixture and, if necessary, fillers, antioxidants, plasticizers, lubricants, processing aids , dyes or color pigments, flame retardants _:

or other additives or mixtures of one or |

several of these substances and also has a |

Surface layer according to the invention. |

According to a further preferred embodiment,

the stabilizing agent contained in the film is based on 100 parts by weight of the plastic mixture

or plastic alloy (the foil or foil I

I layer) 1-10 parts by weight, preferably 2-8 parts by weight:

Parts, at least one stabilizer or stabilizer %

tor mixture based on an inorganic-chsmi- |

see and/or organic-chemical lead and/or 1

I Tin compound, preferably based on a three- '

basic lead sulfate, 4-basic lead sulfate, ₄

2-basic lead phosphite, polybasic lead phosphite sulfide, 2-basic lead phthalate, one containing at least one alkyl group, one oxygen atom and/or
Sulfur-containing organotin compound, a '

Alkyl or dialkyltin compound, preferably
an alkyl radical of Cij - Qq, or an organic tin compound or an organic chemical group and/or tin bound via sulphur or oxygen and/or an alkyl tin carboxylate compound and contains 0.1 - 10 parts by weight, preferably 1 - 9 parts by weight, of a co-stabilising agent or co-stabilising agent mixture based on a magnesium or magnesium-aluminium compound, preferably on
based on an oxygen, CO2 or carboxylic acid
and/or hydroxyl group-containing magnesium and/or magnesium-aluminium compound.

According to a further embodiment, the plastic film web contains, per 100 parts by weight of the plastic mixture, an additional 0.1 - 50 parts by weight, preferably 5
- 30 parts by weight of an external plasticizer or
Plasticizer mixture, preferably based on an aliphatic and/or aromatic polycarboxylic acid ester, polymeric carboxylic acid ester and/or epoxidized natural oil, and at least one stabilizing and co-stabilizing agent.

The weight ratio of the modifying agent or modifying agent mixture contained in the film web or carrier layer with a glass transition temperature of greater than 70 ⁰ C, preferably greater
than 80 ⁰ C, to the other modifier or modifier mixture contained in the film with a glass transition temperature of
less than 60 ⁰ C, preferably less than 50 ⁰ C, 4 : 1 to 1 : 4, preferably 3 : 1 to 1 : 3.

According to a preferred embodiment of the plastic film, instrument panel or control panel, the polymer or polymer mixture (modifier) which has a glass transition temperature of greater than 70 ^° C, preferably greater than 80 ^° C, is an ityrene-acrylonitrile copolymer (SAN), a methylstyrene-acrylonitrile copolymer, a styrene-maleic anhydride copolymer, a polymethyl methacrylate (PMMA) and/or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these polymers or copolymers. The other polymer or polymer mixture (modifier) consists of a homopolymer or a plastic alloy or mixture with polar groups with a glass transition temperature of less than 60 ^° C, preferably less than 50 ^° C.

In a further preferred embodiment, the polymer mixture or modifier mixture contained in the plastic film web, which has an oil winding temperature of greater than 70 ^° C, preferably greater than 80 ^° C, consists of at least one styrene-acrylonitrile copolymer (SAN), a ethylstyrene-acrylonitrile copolymer, a styrene-halic anhydride copolymer, a polymethyl methacrylate (PMMA) and/or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these copolymers and at least one olefin copolymer or terpolymer with polar groups, preferably an ethylene copolymer or terpolymer with polar groups, with a glass transition temperature of less than 60 ^° C, preferably less than 50 °C.

The plastic film web is preferably a single or multi-layer film and has a total thickness of 300 to 2500 μm, preferably 600 to 1500 μm.

According to another preferred embodiment, the plastic film web consists of at least one polyolefin or a polyolefin alloy or a polyester or elastomer-modified polyester or a thermoplastic polyurethane or contains one or more of these plastics as an alloy or mixture component with one or more other plastics and optionally processing aids and/or additives.

According to a preferred embodiment, the plastic film web has a total thickness of 300 to 2500 μm, preferably 600 to 1500 μm, and consists of at least one lower layer or lower film and at least one upper layer or upper film, the upper layer or upper film having a thickness of 40 to 500 μm, preferably 80 to 100 μm, the composition and/or the weight proportions of the individual components preferably differing from one another between the lower layer or lower film and the upper layer or upper film.

A barrier and/or adhesive layer with a thickness of 3 to 200 μm, preferably 10 to 150 μm, is expediently arranged under the base layer.

The polymer with a glass transition temperature below 60 ⁰ C, preferably below 50 ⁰ C, is, according to a preferred embodiment, up to 60 parts by weight (based on 100 parts by weight of the polymer with the glass transition temperature below

60 ⁰ C, preferably below 50 ⁰ C), preferably up to 45 wt.-?, by nitrile butadiene rubber, ethylene-propylene copolymer and/or ethylene-propylene-diene polymer (EPDM).

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Drawing description

The attached figures 1-5 show schematically the plastic film web according to the invention, in particular for the production of instrument panels or control panels for motor vehicles.

In Fig. 1, a film (10) with a 10 - 200 μm thick, preferably 30 - 120 μm thick, lacquer layer (11) on the visible side is shown schematically.

In Fig. 2, the bottom film web (10) can be seen with the top film web (12), on the visible side of which a layer of varnish (11) is applied.

A multilayer film web is shown schematically in Fig. 3. The bottom films (10) and (13) can be made of the same or different materials. The top film (12) is provided with a coating or varnish.

In Fig. 4, the multilayer film shown in Fig. 3 is shown thermoplastically deformed as a cross-section of an instrument or control panel.

Fig. 5 shows an instrument panel or control panel consisting of the thermoplastically formed multilayer film, which is back-foamed with polyurethane resin foam (14), for example.

Fig. 6 shows a cross-section through an instrument panel covering. The painted, surface-structured, deep-drawn film strip (1), preferably PVC/ABS film, is covered with a polymer foam (2),

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preferably polyurethane foam backed, which is arranged on the carrier material (3) or the carrier (containing wood fiber, aluminum, sheet steel or polymers such as ABS, PP and the like).

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Claims (1)

Protection claims : I 1, Plastic film web for the manufacture of instrument I ten panels or switch panels for motor vehicles, \ possibly containing depressions, elevations, I Recesses and/or material-thinned or material- ) material thickened areas, especially for suture- \ lent to be carried out recesses, especially for I Motor vehicle instruments, speed and I Tachometer and/or other car accessories \ I stands, whereby the plastic film web is used to produce \ Instrument panels or switchboards shall be coated with at least one plastic film or carrier layer with a thickness of % 200 - 2,000 μηι, preferably j 500 - 1,300 μηι, I and at least one subsequent direct or s with an interposition of a plastic layer, ä Printing layer or adhesive layer arranged surface L layer, characterized in that the surface surface layer of a I 10 - 200 μm thick, preferably 30 - 120 μm thick, varnish layer.
{ [ 2. Plastic film web according to claim 1, characterized i indicates that the lacquer layer consists of a poly- urethane resin varnish, preferably a two- or multi-component polyurethane resin paint or contains this. 3. Plastic film web according to claims 1 and 2, characterized in that the lacquer layer has a Shore A hardness of 20 - 100, preferably 40 - 70, and the polyurethane resin varnish is preferably produced using aliphatic isocyanates. 4. Plastic film web according to one or more of claims 1-3, characterized in that the polyurethane resin lacquer layer contains additives and/or processing aids, preferably matting agents, UV stabilizers, antioxidants, dyes, pigments and/or waxes. 5. Plastic film web according to one or more of claims 1-4, characterized in that the plastic film web or carrier layer consists of 90 - 25 Gew.-56, preferably 85 - 28 Oew.-Jt, a vinyl chloride homo-, co-, graft polymer and/or an alloy or mixture based on polyvinyl chloride, 10 - 75 wt. %, preferably 15 - 72 wt. %. (based on 100 wt.&iacgr; of the plastic mixture or alloy without additives, fillers, stabilizers sistors, processing aids), at least one modifier with a glass transition temperature of greater than 70 ^° C, preferably greater than 80 ^° C and/or at least one modifier and a glass transition temperature of less than 60 ^° C, preferably less than 50 ^° C, and additionally at least one stabilizer or stabilizer-fluid element and optionally fillers, antioxidants, plasticizers, lubricants, processing aids, dyes or color pigments, flame retardants or other additives or mixtures of one or more of these substances and has a surface layer. 6. Plastic film web according to one or more of claims 1-5, characterized in that the stabilizing agent based on 100 parts by weight of the plastic mixture or plastic alloy 1-10 parts by weight, preferably 2-8 parts by weight, at least one stabilizer or stabilizer mixture based on an inorganic-chemical and/or organic-chemical lead and/or tin compound, preferably based on a tribasic lead sulfate, n-basic lead sulfide, 2-basic lead phosphite, polybasic biphosphonate sulfide, 2-basic lead phthalate, an organotin compound containing at least one alkyl group, an oxygen atom and/or sulfur, an alkyl or dialkyltin compound, which preferably contains an alkyl radical of C4 - C8 or an organotin compound or an organic chemical group and/or tin bound via sulphur or oxygen and/or an alkyl gin carboxylate compound and 0.1 - 10 parts by weight, preferably 1 - 9 parts by weight, a co-stabilizing agent or co-stabilizing agent mixture based on a magnesium ^or magnesium-aluminium compound, preferably based on a magnesium and/or magnesium-aluminium compound containing oxygen, CO2 or carboxylic acid and/or hydroxy groups. 7. Plastic film web according to one or more of claims 1-6, characterized in that the plastic film web contains per 100 parts by weight of the plastic mixture additionally 0.1 - 50 parts by weight, preferably 5-30 parts by weight, an external plasticizer or plasticizer mixture, preferably based on an aliphatic and/or aromatic polycarboxylic acid ester, polymeric carboxylic acid ester and/or epoxidized natural oil, and at least one stabilizing and co-stabilizing agent. 8. Plastic film web according to one or more of claims 1-7» characterized in that the weight ratio of the modifying agent or &diams; * · · ar·· ·■ * a - ■* .-.c 4 « t SC CC C modifier mixture with a glass transition temperature of greater than 70 ⁰ C, preferably greater than 80 ⁰ C, to the further modifier* or modifier mixture with a glass transition temperature of less than 60 °C, preferably less than 50 ⁰ C, is 4 : 1 to 1 : 4, preferably 3 : 1 to 1 : 3», Si plastic film web according to one or more of claims 1-8, characterized in that the polymer or polymer mixture (modifier) which has a glass transition temperature of greater than 70 ^° C, preferably greater than 80 ^° C, is a styrene-acrylonitrile copolymer (SAN), a methylstyrene-acrylonitrile copolymer, a styrene-maleic anhydride copolymer, a polymethyl methacrylate (PMMA) and/or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these polymers or copolymers and that the other polymer or polymer mixture (modifier) is a homo-, graft-copolymer or a plastic alloy or mixture with polar groups with a glass transition temperature of less than 60 ^° C, preferably less than 50 °C. ID. Plastic film web according to one or more of claims 1-9» characterized in that the polymer mixture or modifying agent mixture contained in the plastic web, which has a glass transition temperature of greater than 70 ⁰ C, preferably greater than 80 ⁰ C, consists of at least one styrene-acrylonitrile copolymer (SAN), a Methylstyrene-acrylonitrile copolymer, a styrene-maleic anhydride copolymer, a filmmethyl methacrylate (PMMA) and/or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these copolymers and at least one olefin copolymer or terpolymer with polar groups, preferably an ethylene-olefin polymer or terpolymer with polar groups, with a glass transition temperature of less than 60 ^° C, preferably less than 50 ^° C. 11. Plastic film web according to one or more of claims 1 to 10, characterized in that the plastic film web consists of at least one polyolefin, a polyolefin alloy, at least one polyester or elastomer-modified polyester and/or a thermoplastic polyurethane or contains one or more of these plastics as an alloy component or mixture component and optionally processing aids and additives. 12. Plastic film web according to one or more of claims 1 to 11, characterized in that the plastic film web is a single- or multi-layer film and has a total thickness of 300 to 2500 μιη, preferably 600 to 1500 μιη, having. 13- Plastic film web according to one or more of the \ Claims 1 to 12, characterized in that the i, Plastic film web with a total thickness of &iacgr; 300 to 2500 μια, preferably § 600 to 1500 μια, | and is designed as a monofilm on which the lacquer layer is arranged directly or consists of at least one lower layer or lower film and at least one upper layer or upper film, the upper layer or upper film having a thickness of 40 to 500 μια, preferably 80 to 400 μια, is, whereby preferably the composition and/or the weight proportions of the individual components between the lower layer or lower film and the upper layer or upper film differ from one another. 14. Plastic film web according to one or more of claims 1 to 13», characterized in that under the bottom film there is a barrier and/or adhesive layer with a thickness of 3 to 200 μια, preferably 10 to 150 μια, is arranged. 15. Plastic film web according to one or more of the AndpPÜche 1 to 14, characterized in that the I polymer with a glass fiber below 60 ⁰ C, preferably below 50 ⁰ C, up to 60% by weight (based on 100 parts by weight of the polymer with a glass transition temperature below 60 ^° C, preferably below 50 ^° C), preferably up to 45 % by weight, is replaced by nitrile-butadiene rubber, ethylene-propylene copolymer and/or ethylene-propylene-diene polymer (EPDM).