Claims
- 1. A thermoplastic elastomer laminate which comprises
- a layer comprising a graft-modified thermoplastic elastomer (GA) and
- a layer comprising an ultra-high molecular weight polyolefin (B),
- said graft-modified thermoplastic elastomer (GA) being obtained by dynamic heat treatment and partial cross-linking of a blend in the presence of an organic peroxide,
- said blend containing
- (i) 95--10 parts by weight of a peroxide cross-linking olefin copolymer rubber,
- (ii) 5-90 parts by weight of a polyolefin (the sum total of the (i) and (ii) components is 100 parts by weight) and
- (iii) 0.01-10 parts by weight of an .alpha.,.beta.-unsaturated carboxylic acid or its derivatives, or an unsaturated epoxy monomer.
- 2. The thermoplastic elastomer laminate according to claim 1wherein the graft-modified thermoplastic elastomer (GA) further contains
- (iv) 5-100 parts by weight of a peroxide non-cross linking rubbery substance and/or
- (v) 3-100 parts by weight of a mineral oil softener based on 100 parts by weight of the sum total of the components (i) and (ii).
- 3. The thermoplastic elastomer laminate according to claim 2 wherein the content of said peroxide cross-linking olefin copolymer rubber (i) is 95--60 parts by weight and that of said polyolefin (ii) is 5-40 parts by weight (the sum total of the components (i) and (ii) is 100 parts by weight).
- 4. The thermoplastic elastomer laminate according to claim 1 wherein said ultra-high molecular weight polyolefin (B) has an intrinsic viscosity [.eta.], as measured in decalin at 135.degree. C., of 10-40 dl/g.
- 5. A thermoplastic elastomer laminates which comprises
- a layer comprising a graft-modified thermoplastic elastomer (GA) and
- a layer comprising an ultra-high molecular weight polyolefin composition (C),
- said graft-modified thermoplastic elastomer (GA) being obtained by dynamic heat treatment and partial cross-linking of a blend in the presence of an organic peroxide,
- said blend containing
- (i) 95--10 parts by weight of a peroxide cross-linking olefin copolymer rubber,
- (ii) 5-90 parts by weight of a polyolefin (the sum total of the (i) and (ii) components is 100 parts by weight) and
- (iii) 0.01-10 parts by weight of an .alpha.,.beta.-unsaturated carboxylic acid or its derivatives, or an unsaturated epoxy monomer,
- said ultra-high molecular weight polyolefin composition (C) consisting essentially of an ultra-high molecular weight polyolefin having an intrinsic viscosity [.eta.], as measured in decalin at 135.degree. C., of 10-40 dl/g, and a polyolefin having an intrinsic viscosity [.eta.], as measured in decalin at 135.degree. C., of 1-5 dl/g,
- said ultra-high molecular weight polyolefin existing in a proportion of 15-40% by weight based on 100% by weight of the sum total of the ultra-high molecular weight polyolefin and polyolefin, and
- said ultra-high molecular weight polyolefin composition (C) having an intrinsic viscosity [.eta.], as measured in decalin at 135.degree. C., of 3.5-8.3 dl/g.
- 6. The thermoplastic elastomer laminate according to claim 5 wherein the graft-modified thermoplastic elastomer (GA) further contains
- (iv) 5-100 parts by weight of a peroxide non-cross linking rubbery substance and/or
- (v) 3-100 parts by weight of a mineral oil softener based on 100 parts by weight of the sum total of the components (i) and (ii).
- 7. The thermoplastic elastomer laminate according to claim 5 wherein the content of said peroxide cross-linking olefin copolymer rubber (i) is 95--60 parts by weight and that of said polyolefin (ii) is 5-40 parts by weight (the sum total of the components (i) and (ii) is 100 parts by weight).
- 8. The thermoplastic elastomer laminate according to claim 5 wherein said ultra-high molecular weight polyolefin composition (C) contains 1-20% by weight, based on the composition (C), of a liquid or solid lubricant.
Priority Claims (7)
Number |
Date |
Country |
Kind |
3-90666 |
Apr 1991 |
JPX |
|
3-90667 |
Apr 1991 |
JPX |
|
3-90668 |
Apr 1991 |
JPX |
|
3-97636 |
Apr 1991 |
JPX |
|
3-105918 |
May 1991 |
JPX |
|
3-105919 |
May 1991 |
JPX |
|
3-105920 |
May 1991 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/872,158 filed Apr. 22, 1992 now U.S. Pat. No. 5,302,463.
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4247652 |
Matsuda et al. |
Jan 1981 |
|
4894289 |
Otawa et al. |
Jan 1990 |
|
5191005 |
Murata et al. |
Mar 1993 |
|
5302463 |
Murat et al. |
Apr 1994 |
|
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Number |
Date |
Country |
0266982 |
Nov 1988 |
EPX |
0336780 |
Nov 1989 |
EPX |
220849 |
Sep 1990 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Database WPIL Week 4190, Derwent Publ. Ltd., London, GB; AN 90-310067 and JP-A-2220844 (Bridgestone Tire KK) Sep. 1990. |
Database WPIL Week 1990, Derwent Publ. Ltd., London, GB; AN 90-143663 and JP-A-2089639 (Toyoda Gosei KK) Mar. 29, 1990. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
872158 |
Apr 1992 |
|