Patent ID: 6903144
Filing Date: 2005-06-07
Classification: C08L,C09D,C09J,Y10T

Abstract:
1. A process, which does not utilize a non-aqueous solvent, for producing a ultraviolet curable adhesive, coating, or sealant composition comprising a monohydroxylated epoxidized polydiene block copolymer comprised of at least, two different diene monomers wherein at least one is a diene monomer which yields unsaturation suitable for epoxidation and wherein the polymer contains from 0.5 to 4.0 milliequivalents of epoxy per gram of polymer, and, optionally, other formulating ingredients, said process comprising mixing the epoxidized polymer and optional formulating ingredients with a photoinitiator which is insoluble in the polymer in a high speed mixer under mixing conditions of a blade tip speed of from 200 to 2000 centimeters per second at a temperature from 25 to 130° C.