POLYURETHANE (METH) ACRYLATES USING MODIFIED HYDROXYTHIOLS

摘要

The invention provides intermediates of the formula:;;as well as a method of their preparation by reacting a thiol having at least two hydroxyl groups with a mono-unsaturated organic compound in the presence of a base catalyst. A polymerizable urethane acrylate oligomer or urethane methacrylate oligomer is formed by reacting a polyisocyanate with the intermediate. The polymerizable urethane acrylate oligomer or urethane methacrylate is blended with a polymerization initiator to form a composition which is useful in such applications as adhesives.

主权项

1. An intermediate of the formulawherein R is a linear or branched C1 to C30 alkyl group, a linear or branched C3 to C30 alkenyl group, a C6 to C22 aryl group, a polyethylene glycol containing group, a (poly)ethylene glycol mono methyl ether containing group, a (poly)ethylene glycol mono ethyl ether containing group, a lauryl group, a silicone containing group, an alkoxysilane containing group, Si(OCH3)3 containing group, a fluorinated alkyl group, a brominated alkyl group, or a benzene derivative.