Patent ID: 6605687
Filing Date: 2003-08-12
Classification: C08G,H05K

Abstract:
An ene-thiol elastomer comprising the reaction product of:(a) an unsaturated carbon to carbon bond terminated oligomer comprising the reaction product of a first polythiol having two thiol groups and a polyene or mixture of polyenes having two reactive unsaturated carbon to carbon bonds; and (b) a second polythiol or mixture of polythiols, having at least 5 percent functional thiol equivalents from polythiols having at least three thiol groups, wherein the ene-thiol elastomer shows a weight increase of not more than 4 weight percent in 15 days at a temperature of 22Â° C. when immersed in a solution of 96 parts by weight water and 4 parts by weight n-butanol.