Elastomeric copolyether-ester/polyoxymethylene

摘要

An elastomeric copolyether-ester of improved combination of modulus and low temperature impact strength and flexibility is provided by the addition of about 5-45 percent by weight of an oxymethylene polymer. The copolyether-ester, having an inherent viscosity of at least 1, consists essentially of long-chain ester units derived from long-chain glycols and dicarboxylic acids and short-chain ester units derived from low molecular weight diols and dicarboxylic acids.