POLYURETHANE UREAS PREPARED USING DIAMINOANTHRAQUINONES AS CHAIN LENGTHENING AGENTS AND A PROCESS FOR THE PREPARATION OF THE POLYURETHANE UREAS

摘要

POLYURETHANE UREAS PREPARED USING DIAMINOANTHRAQUINONES AS CHAIN LENGTHENING AGENTS AND A PROCESS FOR THE PREPARATION OF THE POLYURETHANE UREAS The present invention relates to polyurethane ureas obtained by a process in which (a) diisocyanates are allowed to react with (b) polyols and (c) diaminoanthraquinones or mixtures of such diaminoanthraquinones with conventional chain lengthening agents.