HIGH PRESSURE GAS TRANSFER HOSE

摘要

PROBLEM TO BE SOLVED: To provide a high pressure gas transfer hose with a gas barrier layer having high gas barrier properties and low hydrogen solubility and further having excellent durability to change due to supply and supply stop of high pressure gas.

SOLUTION: The high pressure gas transfer hose has at least one layer comprising a resin composition containing (A) a side chain 1,2-diol containing polyvinyl alcohol resin and (B) a polyamide resin having a solubility parameter of 22-28 MPa1/2. The gas barrier layer is excellent in gas barrier properties and flexibility, furthermore the occurrence of cracks and blisters in the gas barrier layer and deterioration in the mechanical properties thereof which are caused by supply and supply stop of high pressure gas can be suppressed.

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