Patent ID: 7615593
Filing Date: 2009-11-10
Classification: A61K,A61L,C08G,C08L,Y10S

Abstract:
1. A hydrogel comprising: a first polymer matrix containing reactive amino moieties; a heterobifunctional modifier comprising a compound of formula: wherein at least one of the “A” or “Z” moieties is covalently bonded to the reactive amino moieties of the first polymer matrix; and wherein “A” and “Z” are independently a monovalent or divalent organic moiety; wherein at least one of A and Z is a divalent moiety; if A or Z is a monovalent moiety, then A or Z is selected from the group consisting of halo, hydroxy, C if A or Z is a divalent moiety, then A or Z is independently selected from a divalent equivalent of a monovalent moiety selected from the group consisting of C wherein the “A” moiety and the “Z” moiety are different from one another; wherein only one of A and Z is bound to the first polymer matrix; wherein “m” is an integer of from 2 to 8 and “n” is an integer equal to or greater than 100; and a second polymer matrix that interpenetrates with the first polymer matrix.