Claims
- 1. An elastomeric membrane for use in a vehicle seat assembly comprising an extruded sheet made from a block copolymer consisting of polytetramethylene terephthalate polyester and polytetramethylene ether, said extruded sheet having the molecules oriented therein and annealed to define a greater modulus in the direction in which the membrane is to be tensioned when suspended in a seat assembly.
- 2. An elastomeric membrane for use in a vehicle seat assembly comprising an extruded sheet made from a block copolymer consisting of polytetramethylene terephthalate polyester and polytetramethylene ether, said extruded sheet having the molecules oriented therein and annealed to define a first modulus of elasticity in a first range of elongation of the copolymer material and a second modulus of elasticity greater than the first modulus in a second range of elongation which is greater than the first range of elongation.
Parent Case Info
This is a division of application Ser. No. 07/271,461 filed on Nov. 14, 1988 which is a division of Ser. No. 119,965, filed Nov. 13, 1987, now U.S. Pat. No. 4,842,257.
US Referenced Citations (9)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0653100 |
Nov 1962 |
CAX |
1495585 |
Dec 1977 |
GBX |
Divisions (2)
|
Number |
Date |
Country |
Parent |
271461 |
Nov 1988 |
|
Parent |
119965 |
Nov 1987 |
|