Patent ID: 6107451
Filing Date: 2000-08-22
Classification: C07C,C08G,C08K

Abstract:
The curable composition, which consists of(a) a liquid oligomer or liquid polymer having a molecular weight of 200-50,000 and containing dicarboxylic anhydride groups selected from the group consisting ofa copolymer consisting of an unsaturated dicarboxylic anhydride and of one or more than one olefinically unsaturated monomer,an addition product obtained by reacting an unsaturated dicarboxylic anhydride with a polymer containing individual or conjugated double bonds,an addition product obtained by reacting an unsaturated dicarboxylic anhydride with unsaturated degradation products of high molecular weight elastomers,a graft polymer obtained by radically reacting an unsaturated dicarboxylic anhydride with a liquid polymer containing unsaturated double bonds, anda polymeric ester anhydride obtained by esterifying polyols with trimellitic anhydride, pyromellitic anhydride, benzenetetracarboxylic dianhydride or benzophenontetracarboxylic dianhydride, and(b) a compound of formula I ##STR10## wherein A is linear or branched C.sub.2 -C.sub.20 alkylene; C.sub.5 -C.sub.7 cycloalkylene which is unsubstituted or substituted by one or more C.sub.1 -C.sub.6 alkyl groups; C.sub.7 -C.sub.10 bicycloalkylene which is unsubstituted or substituted by one or more C.sub.1 -C.sub.6 alkyl groups; or C.sub.1 -C.sub.30 alkylene containing one or more than one C.sub.5 -C.sub.7 cycloalkylene group or C.sub.7 -C.sub.10 bicycloalkylene group in the main or side chain, which cycloalkylene and bicycloalkylene groups are unsubstituted or substitltd by one or several C.sub.1 -C.sub.6 alkyl groups; and R.sub.1 and R.sub.2 are independently of each other C.sub.1 -C.sub.18 alkyl, C.sub.4 -C.sub.10 cycloalkyl or C.sub.7 -C.sub.24 aralkyl, which cycloalkyl and aralkyl groups can be unsubstituted or substituted by one or more than one C.sub.1 -C.sub.6 alkyl group.