Patent ID: 7598338
Filing Date: 2009-10-06
Classification: A61K,A61L,A61P,C08G,C08J,C08L

Abstract:
1. A crosslinked polymer composition produced according to a method comprising: providing a first composition comprising at least one thiosulfonate polymer derivative, wherein said at least one thiosulfonate polymer derivative has the formula, wherein POLY is a water-soluble polymer, (n) is 3 to about 25, X is a linking group, Y is a moiety derived from a molecule having at least three nucleophilic groups, and R is hydrogen, or an organic radical; exposing said first composition to a base under conditions sufficient to initiate crosslinking between said thiosulfonate functional groups; and allowing said crosslinking to proceed to thereby form said crosslinked polymer composition, and wherein said crosslinked polymer composition is substantially free from by-products of crosslinking agents or redox catalysts.