Lens composition, articles and method of manufacture

Details Lens composition, articles and method of manufacture Lens composition, articles and method of manufacture

C - Chemistry, Metallurgy

08

F

402/25, 88/40

C08F 230/08 (2006.01) G02B 1/04 (2006.01)

Patent

CA 1255841

ABSTRACT OF THE DISCLOSURE New copolymer composition methods for processing the copolymers into optical devices and articles resulting therefrom, especially intraocular and contact lenses having outstanding extended waer and daily wear properties. The composition comprises, in weight percent: from 3% to 35% polyfluoroalkyl acrylate; from 45% to 65% acryloxynlkylpolysiloxane; 1% to 15% acryloxyalkylsilanol; 2% to 20% polyacryloxyalkyl- polysiloxane; 2% to 15% polyol polyacrylate and 2% to 15% polymerizable ethylenically unsaturated monomeric wetting agent such as acrylic acid. The composition may also contain 0 to 15% acrylate acid ester of a monohydric alcohol having no more than 10 carbon atoms and from 0.05 to about 2.0% of a free radical initiator.

532332

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