Pipes and tubular conduits – Flexible – Distinct layers
Patent
1992-04-14
1999-02-02
Scherbel, David
Pipes and tubular conduits
Flexible
Distinct layers
138141, F16L 1104
Patent
active
058652183
ABSTRACT:
A layered tubing for use in a motor vehicle composed of a thick outer tubing having an inner and an outer face, the outer tubing made of an extrudable thermoplastic such as a polyamide like Nylon 12; a thin intermediate bonding layer bonded to the inner face of the thick outer layer, the bonding layer composed of an extrudable melt-processible thermoplastic capable of sufficiently permanent laminar adhesion to the polyamide outer tubing; and an inner hydrocarbon barrier layer bonded to the intermediate bonding layer, the inner layer composed of an extrudable, melt processible thermoplastic capable of sufficiently permanent laminar adhesion to the intermediate bonding layer, the thermoplastic containing as a major constituent a fluoroplastic such as polyvinylidine fluoride, polyvinyl fluoride, and the like.
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Mitchell Frank
Noone David L.
Wenig Peter
Hook James F.
ITT Corporation
Lewis J. Gordon
Scherbel David
Twomey Thomas N.
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