Materials for contact lenses comprising a macromer having...

Details Materials for contact lenses comprising a macromer having... Materials for contact lenses comprising a macromer having...

C - Chemistry, Metallurgy

08

G

C08G 77/26 (2006.01) G02C 7/04 (2006.01)

Patent

CA 2337911

A material for contact lenses having excellent flexibility and oxygen permeability are disclosed. The material comprises a copolymer essentially comprising a siloxane macromer of component (A) which has the number-average molecular weight of from about 1, 000 to 10, 000 and is represented by the general formula (I), a water-insoluble monoolefin monomer of component (B), and a water-soluble monoolefin monomer of component (C). A soft contact lens which is obtained by injecting to a mold in the shape of contact lens the components (A), (B) and (C); copolymerizing the monomer mixture; and making the resulting copolymer contain water. (see formula I)

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