COMPOSITE THERMOPLASTIC-ELASTOMER PRODUCT

摘要

The invention concerns a composite thermoplastic-elastomer product, in particular a pipe for transporting refrigerating fluid for a motor vehicle air-conditioning circuit, comprising an inner layer (10) formed by a plastic alloy comprising a polyamide (6) and at least 51 % of a modifying agent selected among ethylene-acrylate-acrylic acid terpolymers and a layer (12) formed by a mixture of an elastomer such as a brominated butyl rubber modified by a grafted polybutadiene-vinyl-1,2, a silane, an ethylene-acrylic acid copolymer or a maleic anhydride grafted ethylene-propylene copolymer, with total adherence between the thermoplastic and the elastomer.