Patent ID: 7883720
Filing Date: 2011-02-08
Classification: A61K,C08L,Y10T

Abstract:
1. An interpolyelectrolyte complex comprising: a. a dynamic charge state cationic polymer having a polymeric backbone formed from monomeric units, and one or more removable functional groups attached to the polymeric backbone through one or more labile linkages, wherein the one or more removable functional groups are selected from the group consisting of an alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclic, aryl, and heteroaryl group; and b. one or more anions complexed to said cationic polymer; wherein the overall positive charge of the cationic polymer decreases when one or more of the removable functional groups is removed from the polymeric backbone, thereby causing said one or more anions to disassociate from the cationic polymer.