Patent ID: 9567352
Date: 2017-02-14
CPC Classifications: C07F,C08F,G02B

Claim:
1. A method for preparing a silicone vinylic monomer, comprising the steps of: reacting a polyoxyethylene (meth)acrylate of formula (II) with an isocyanatoalkyl tris(trimethylsiloxy)silane of formula (III) in the presence or absence of a solvent and in the presence of a catalyst to form the silicone vinylic monomer of formula (I), wherein R 1 is hydrogen or methyl, q1 is an integer of 6 to 20, and R 2 is a diradical of an alkane or cycloalkane which comprises up to 20 carbon atoms and may have one or more ether, thio, amine, carbonyl, or amido linkages in the main chain.