Multi-layer pipe

Details Multi-layer pipe Multi-layer pipe

1996-09-06

1998-12-01

Brinson, Patrick F.

Pipes and tubular conduits

Distinct layers

138137, 428 357, F16L 714

Patent

active

058425055

ABSTRACT:
A multi-layer pipe has an innermost layer formed of a butene polymer composition. At least one other layer is formed of a polyolefin resin composition comprising (A) 95-5 parts by weight of a polyolefin resin, (B) 5-95 parts by weight of a filler, and (C) 0.1-10 parts by weight per 100 parts by weight of components (A) and (B) combined of a modified polyolefin resin. This multi-layer pipe undergoes minimal elongation by heat so that it is free from troubles by thermal deformation even when high temperature fluid is passed therethrough, has high rigidity, and is thus suitable as plumbing for cold and hot water.

REFERENCES:
patent: 4579900 (1986-04-01), Chatterjee et al.
patent: 4791143 (1988-12-01), Tanaka et al.
patent: 4918111 (1990-04-01), Tanaka et al.

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