Polyurethane ureas prepared using diaminoanthraquinones as...

C - Chemistry – Metallurgy – 08 – G

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C08G 18/65 (2006.01) C08G 18/10 (2006.01)

Patent

CA 2037183

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

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