Conductive resin coated steel pipe and extrusion molding method for the steel pipe

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United States of America Patent

PATENT NO 7105216
APP PUB NO 20040086672A1
SERIAL NO

10472163

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Abstract

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A conductive resin coated steel pipe and an extrusion molding method for the steel pipe capable of using filler instead of carbon black and not only lowering a production cost but also further increasing an attractiveness; the resin coated steel pipe, wherein a regenerated resin (3) such as polyethylene, ABS, AAS, and the outer peripheral surface of a thin-walled steel pipe (2) is coated with polypropylene, and a conductive resin (4) such as polyethylene, ABS, AAS, and polypropylene mixed with filler on the outer peripheral surface of the coated resin (3) is axially uniformized in cross section by a double coated structure where the portion (4b) thereof having a wall thickness and a width necessary for developing the conductivity thereof are provided at one or more positions in the circumferential direction of a pipe body and the entire outer peripheral surface thereof is coated thinly with the resin.

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Patent Owner(s)

Patent OwnerAddress
YAZAKI INDUSTRIAL CHEMICAL CO LTDSHIZUOKA PREFECTURE JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yoshino, Shuji Shizuoka, JP 13 119

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