MULTILAYERED RESIN PIPE FOR FEEDING HYDROGEN

摘要

PROBLEM TO BE SOLVED: To provide a pipe for feeding hydrogen which has a hydrogen-barrier functionality high enough for feeding a gas or liquid mainly composed of hydrogen, a mechanical strength sufficient for the pipe and is used for various purposes. SOLUTION: The pipe for feeding hydrogen is a multilayered resin pipe comprising at least five layers composed of a polyolefin layer (a1: outer layer)/an adhesive layer (b)/a gas barrier layer (c)/an adhesive layer (b)/and a polyolefin layer (a2: inner layer) and has a hydrogen permeability of≤4 cc/m day atm. COPYRIGHT: (C)2008,JPO&INPIT