Polymer for contact lens and contact lens made thereof

Details Polymer for contact lens and contact lens made thereof Polymer for contact lens and contact lens made thereof

C - Chemistry, Metallurgy

08

G

88/40, 400/5102,

C08G 77/04 (2006.01) C07F 7/08 (2006.01) C08F 230/08 (2006.01) G02B 1/04 (2006.01) G02C 7/04 (2006.01)

Patent

CA 1103838

ABSTRACT OF THE DISCLOSURE A polymerization product suitable for contact lenses comprising (a) an organosiloxane monomer having the following general formula Image wherein n is an integer of 1 to 3, X is Image 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. - 1 -

312606

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