Patent ID: 8536297
Filing Date: 2013-09-17
Classification: C08G,C09D

Abstract:
1. A composition comprising: a) an amine curative composition comprising: wherein each R 1 is independently a C 1 -C 10 alkyl; and (ii) about 10 mol % to about 40 mol % of a bis-aromatic primary diamine having the Formula II wherein each R 2 is independently a C 1 -C 10 alkyl; and each R 3 is independently chlorine, bromine, fluorine or hydrogen, and wherein the mol % is based on the total moles of the bis-aromatic secondary diamine and the bis-aromatic primary diamine; and (b) a prepolymer having free isocyanate (NCO) groups; wherein the molar ratio of the NCO groups in the pre-polymer to the amine (—NH 2 ) groups in the amine curative composition ranges from about 0.8 to about 2.0.