Thermo stable resins for mouldings

摘要

Resins are formed by reaction of an N,N-dicarboxylic bis-imide (I):- (where D is a divalent group containing a double bond, A is a divalent group containing at least 2C) with a diamine H2NBNH2 (B is a less than 30 C divalent gp.) in the presence of a strong acid or free radical inhibitor.