ALPHA, BETA-UNSATURATED CARBONYL-FUNCTIONAL SILICONE COMPOSITIONS

摘要

Polymerizable alpha , beta -unsaturated carbonyl-functional silicone compositions are obtained from the reaction of thiol-functional organopolysiloxanes with an alpha , beta -unsaturated carbonyl-functional compound having at least two acryloyl or methacryloyl groups or mixtures thereof per molecule in the presence of a base catalyst. The alpha , beta -unsaturated carbonyl-functional silicone compositions may be combined with a photosensitizer and/or a free radical generator and polymerized by radiation and/or heat.