ELASTOMERIC POLYETHERESTERIMIDES

摘要

Thermoplastic elastomeric polyetheresterimides comprising a multiplicity of long chain esterimide units being represented by the formula < IMG > and short chain esterimide units being represented by the formula < IMG > where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide) glycol having a number average molecular weight of about 400-4000; D is a divalent radical remaining after the removal of hydroxyl groups from a diol having a molecular weight less than about 300 and Q is a divalent radical remaining after removal of amino groups from an aliphatic primary diamine having a molecular weight less than 350; with the provisos that from about 0.5 to 5 of said short chain esterimide units are present for each of said long chain esterimide units and that said polyetheresterimide has a softening point of at lease l60.degree.C.