Maleimide polymers and contact lenses from such polymers

Details Maleimide polymers and contact lenses from such polymers Maleimide polymers and contact lenses from such polymers

C - Chemistry, Metallurgy

08

F

C08F 22/40 (2006.01) C08F 20/10 (2006.01) C08F 222/40 (2006.01) C08F 230/08 (2006.01) G02B 1/04 (2006.01) G02C 7/04 (2006.01)

Patent

CA 2091537

Abstract A maleimide polymer comprises units derived from a maleimide derivative represented by the following general formula (I): Image (I) where R1 is hydrogen atom or a methyl group, and R1 is an alkyl, alkenyl or aryl group, each of which groups is substituted by at least one organosiloxane group or fluorine atom, or comprises a copolymer of (1) a maleimide derivative represented by the formula (I) but in which R2 may be hydrogen or any optionally substituted aliphatic hydrocarbon or aryl group with (2) an alkyl or fluoroalkyl methacrylate or an organosiloxy styrene- or organosiloxy-(meth)acrylic acid derivative. The polymer material may be formulated into contact lenses high in oxygen permeability and having good mechanical properties.

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