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1. (WO2018123886) COMPOSITE PIPE AND METHOD FOR MANUFACTURING COMPOSITE PIPE

Pub. No.:    WO/2018/123886    International Application No.:    PCT/JP2017/046176
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 23 00:59:59 CET 2017
IPC: F16L 11/11
B32B 1/08
B32B 3/30
B32B 5/18
Applicants: BRIDGESTONE CORPORATION
株式会社ブリヂストン
Inventors: SASAKI, Haruto
佐々木 春人
MITSUHASHI, Kohei
三觜 浩平
Title: COMPOSITE PIPE AND METHOD FOR MANUFACTURING COMPOSITE PIPE
Abstract:
A composite pipe having: a tubular pipe body configured from a resin material; a cover layer that is configured from a resin material, is provided with a tubular shape and covers the outer circumference of the pipe body, has an undulating shape wherein annular ridge sections protruding toward the outside in the radial direction and annular valley sections the outside of which in the radial direction is recessed are alternately formed in the axial direction of the pipe body, and can contract in the axial direction while being guided on the outer circumference of the pipe body: a porous resin layer that is arranged between the pipe body and the cover layer, and is sandwiched between the valley sections and the pipe body; and a low-friction resin layer that is arranged between the pipe body and the porous resin layer, and the sliding resistance value of the inner circumferential surface of which is less than the sliding resistance value of the inner circumferential surface of the porous resin layer.