Patent ID: 7955594
Filing Date: 2011-06-07
Classification: A61P,C08F

Abstract:
1. An alternating copolymer comprising a backbone derived from a maleic anhydride compound and an alkene compound, wherein the backbone is the result of alternating radical copolymerisation of maleic anhydride compounds (A) with alkene compounds (B), wherein the copolymer also comprises moieties of an active compound containing a nucleophilic group selected from an alcohol, thiol, isocyanate or amine group, bound to the backbone at the anhydride moiety by a moiety of the nucleophilic group: wherein at least one of a 1 and a 2 is an electron-withdrawing species while at least one of b 1 , b 2 , b 3 , and b 4 is an electron-donating species or vice versa, wherein electron-withdrawing species a 1 and a 2 or b 1 , b 2 , b 3 , and b 4 are selected from alka(poly)alkenyl, C 6-10 aryl, C 1-24 alkoxyl, C 1-24 alkylthio, C 1-6 alkanoyloxy, C 1-6 alkoxycarbonyl, all of which may be substituted with an electron-withdrawing substituent; and wherein electron-donating species b 1 , b 2 , b 3 , and b 4 or a 1 and a 2 , as appropriate, include C 1-6 alkyl which can have a linear or branched structure and C 4-9 cycloalkyl.