Thermoplastic-elastomer composite product, such as a pipe for co

Details Thermoplastic-elastomer composite product, such as a pipe for co Thermoplastic-elastomer composite product, such as a pipe for co

1998-01-22

2000-05-30

Hook, James

Pipes and tubular conduits

Flexible

Braided, interlaced, knitted or woven

138137, 138141, 138146, F16L 1110

Patent

active

060680261

ABSTRACT:
A thermoplastic and elastomer composite product, in particular a pipe for conveying coolant fluid in a motor vehicle air conditioning circuit, the product comprising an inside layer made of a mixture of a polyamide 6 and at least one modifying agent such as a grafted poly(1,2-vinylbutadiene), a polyoctene, a brominated isobutylene-p-methylstyrene, a silane, or an ethylene and acrylic acid copolymer, and a layer of an elastomer such as a brominated butyl rubber modified by a grafted poly(1,2-vinylbutadiene), a silane, an ethylene and acrylic acid copolymer, or a copolymer of ethylene and of propylene grafted with maleic anhydride, there being total adhesion between the thermoplastic and the elastomer.

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Database WPI, Section Ch, Week 9536, Derwent Publications Ltd., London, GB, JP 07 171 906, Jul. 11, 1995.

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