Claims
- 1. A multi-ply, weatherable, plasticizer-free and deep-drawable sheet for the internal and external outfitting of automotive vehicles, comprising:
- a first layer comprised of an ethylene-propylene-diene terpolymer and a homopolymer and/or copolymer of propylene, produced by extrusion or calendering with a sheet thickness of 0.2 to 3 mm bonded to a second layer comprised of a crosslinked polyolefin resin-containing foam; said first layer containing
- 65-25% by weight of a partially crystalline ethylene-propylene-diene terpolymer comprising
- 65-82% by weight of ethylene;
- 18-35% by weight of propylene, and
- 3-8% by weight of a diene tercomponent,
- with a melt index MFI (230/5) of 0.5-2.0 g/10 min., a tensile strength of at least 10 N/mm.sup.2, and DSC maximum temperature of at least 40.degree. C.;
- 3- 75% by weight of at least one propylene polymer selected from the group consisting of homopolymer and a copolymer of propylene, with a melt index MFI (230/2.16) of 0.2-2 g/10 min.;
- 0-10% by weight of fillers, comprising at least one of chalk, kaolin, talc, carbon black, silica and silicic anhydride; as well as, per 100 parts of said polymers:
- 0.1-1.0 parts by weight of stabilizers comprising at least one of sterically hindered phenolic antioxidants, phenolic phosphites and thioesters of aliphatic carboxylic acids;
- 0.1-2 parts by weight of a lubricant comprising at least one of metallic salts of carboxylic acids, montanic acid esters and hydrogenated hydrocarbon resins;
- 0-5 parts by weight of colorants; and
- 0-4 parts by weight of an extender oil;
- said second layer containing, in 100 parts by weight of the polyolefin-containing resin, at least 15% by weight of a polar, copolymerized monomer;
- said first layer and said second layer being adhesively bonded directly to each other by thermal pressure bonding or flame laminating.
- 2. A sheet according to claim 1, wherein said first layer contains an ethylene-propylene-diene terpolymer having a tensile strength of at least 15 N/mm.sup.2.
- 3. A sheet according to claim 1, wherein said first layer comprises an ethylene-propylene-diene terpolymer having a DSC maximum temperature of at least 43.degree. C.
- 4. A sheet according to claim 1, wherein said first layer contains an ethylene-propylene-diene terpolymer with an ethylene content of at least 70% by weight.
- 5. A sheet according to claim 1, wherein said first layer contains a propylene homopolymer and/or propylene copolymer having a melt index MFI (230/2.16) of smaller than 1 g/10 min.
- 6. A sheet according to claim 1, wherein said first layer contains a propylene copolymer with an ethylene content of 5-20% by weight.
- 7. A sheet according to claim 1, wherein said fillers have a maximum particle size determined by passage through a 30 .mu.m sieve.
- 8. A sheet according to claim 1, wherein a separating force between the first layer and the second layer amounts to at least 8 N/5cm and is higher than the intrinsic strength of the foam.
- 9. A sheet according to claim 1, wherein said polar copolymerized monomer is butyl acrylate in an amount of at least 15% by weight based on the polyolefin-containing resin.
- 10. A sheet according to claim 1, wherein the polar copolymerized monomer is vinyl acetate in an amount of at least 20% by weight based on the polyolefin-containing resin.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3519064 |
May 1985 |
DEX |
|
86105883.2 |
Apr 1986 |
EPX |
|
Cross-Reference to Related Application
This is a division of application Ser. No. 867,543, filed May 28, 1986, now abandoned.
US Referenced Citations (4)
Non-Patent Literature Citations (1)
Entry |
EPO, 0052469, May 26, 1982. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
867543 |
May 1986 |
|