Thermoplastic elastomer composition and rubber parts of refriger

Details Thermoplastic elastomer composition and rubber parts of refriger Thermoplastic elastomer composition and rubber parts of refriger

1989-09-19

1992-10-27

Carrillo, Ana L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525179, C08L 7700

Patent

active

051590140

ABSTRACT:
A thermoplastic elastomer composition comprising (a) 20 to 70 parts by weight of a polyamide and (b) 80 to 30 parts by weight of a butyl rubber modified with a functional-group-containing compound having at least one group selected from a carboxyl group, an acid anhydride group and an epoxy group as the functional group, the total amount of the (a) and (b) components being 100 parts by weight. The thermoplastic elastomer composition is resistant to permeation of FREON gases containing hydrogen atom in their molecules and has excellent flexibility, low-temperature resistance and oil resistance.

REFERENCES:
patent: 2914496 (1959-07-01), Kelly
patent: 4987017 (1991-01-01), Sato et al.

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