Patent ID: 9649385
Date: 2017-05-16
CPC Classifications: A61K,A61L,C07C,C08G,C08J,C09B,G02F,Y10T

Claim:
1. A hydrogel that is biodegradable under physiological conditions which hydrogel comprises one or more polymers crosslinked by a linker that decomposes by a beta elimination reaction, wherein said linker is a residue of formula (2) wherein at least two of said R m is 0 or 1; n is 1-1000; s is 0-2; t is 2, 4, 8, 16 or 32; Q is a core group having the valency t; W is O(C═O)O, O(C═O)NH, O(C═O)S, wherein R wherein R wherein R wherein R each R