STEEL PIPE COATED WITH POLYOLEFIN RESIN

Title:

STEEL PIPE COATED WITH POLYOLEFIN RESIN

Document Type and Number:

Japanese Patent JPS54133580

Kind Code:

A

Abstract:

PURPOSE: To manufacture the title steel pipe having excellent adhesivity, water resistance, and impact resistance, by the melt coating of a polyolefin resin using an adhesive layer comprising an oil-soluble phenolic resin, an ethylene copolymer resin, and a petroleum-based hydrocarbon compound.

CONSTITUTION: A polyolefin resin is applied to the surface of a steel pipe by melt- coating using an adhesive composition composed mainly of (A) 5W50 parts by weight of an oil-soluble phenolic resin, e.g. 100% phenolic resin, drying oil-modified phenolic resin, phenolic resin modified with natural resin, etc., and (B) 5W50 parts by weight of a petroleum-based hydrocarbon compound having an average molecular weight of 50,000W1,000,000, and (C) 5W60 parts by weight of an ethylene copolymer, e.g. ethylene-vinyl acetate copolymer resin, ethylene-acrylic acid- acrylate copolymer resin, etc.

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Inventors:

SATAKE JIROU
ARAI TETSUZOU
TANAKA SEIICHI
MIKAMI EIJI
MORIYASU TSUNEO
NAKAGAWA RITSU

Application Number:

JP4159478A

Publication Date:

October 17, 1979

Filing Date:

April 07, 1978

Export Citation:

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Assignee:

NIPPON PAINT CO LTD
SUMITOMO METAL IND

International Classes:

F16L9/16; B32B1/08; B32B7/04; B32B15/04; B32B15/085; C09D123/02; C09D157/00; C09D161/04; C09J123/02; C09J131/04; F16L58/10; (IPC1-7): B32B7/12; B32B15/08; C09D5/00; F16L9/16

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