Thermoplastic elastomer composition and rubber parts of refrigerator having a layer composed of thermoplastic elastomer composition.

摘要

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.