POLYMER FOR CONTACT LENS AND CONTACT LENS MADE THEREOF

摘要

A polymerization product suitable for contact lenses comprising (a) an organosiloxane monomer having the following general formula wherein n is an integer of 1 to 3, X is in which p is an integer of 2 to 4 and q is O or an integer of 1 to 3, and yl, y2 and Y3 are methyl group or-O-Si-(CH3)3, and (b) a hydrophobic methacrylic acid alkyl ester monomer. The polymerization product and corss-linked polymerization product have excellent oxygen permeability and proper hydrophilic property and are substantially water-nonabsorptiye, and contact lenses made thereof can be comfortably worn continuously for a long period of time.