1 - 20 weight blendinging the hindadohuenoru oxidation

摘要

PROBLEM TO BE SOLVED: To provide a hose for feeding hot/cold water having long life and excellent piping workability.;SOLUTION: The modified polyolefin thermoplastic elastomer is produced by compounding a polyolefin thermoplastic elastomer with 1-20 wt.% hindered-phenol oxidative degradation inhibitor. The hose for feeding hot/cold water is provided with an inner layer composed of an innermost layer made of a polybutene resin and an outer layer formed on the innermost layer and made of a polyolefin thermoplastic elastomer, wherein the outer layer is composed of the modified polyolefin thermoplastic elastomer. The hindered phenol oxidative degradation inhibitor in the polyolefin thermoplastic elastomer layer is migrated to the polybutene resin layer by concentration gradient to improve the chlorine water resistance of the polybutene resin layer.;COPYRIGHT: (C)2008,JPO&INPIT