G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 1/04 (2006.01) C08F 290/06 (2006.01) C08L 51/08 (2006.01) G02C 7/04 (2006.01)
Patent
CA 2654571
Silicone hydrogel contact lenses having ophthalmically acceptable surface wettabilities are obtained from pre-extracted polymerized silicone hydrogel contact lens products having relatively large amounts of removable or extractable materials. The silicone hydrogel contact lenses can be obtained from non-polar resin based contact lens molds and without surface treatments or an interpenetrating polymeric network of a polymeric wetting agent. Related lens products, polymerizable compositions, and methods are also described.
L'invention concerne des lentilles de contact en hydrogel de silicone, lesdites lentilles présentant des mouillabilités de surface ophtalmiquement acceptables et étant obtenues à partir de lentilles de contact en hydrogel de silicone polymérisé pré-extraites comprenant des quantités relativement importantes de matériaux éliminables ou extractables. Les lentilles de contact en hydrogel de silicone peuvent être obtenues à partir de moules de lentilles de contact à base de résine non polaire et sans traitements de surface ou réseau polymère interpénétrant d'un agent mouillant polymérique. L'invention concerne également des produits de lentilles, des compositions polymérisables et des procédés associés.
Chen Charlie
Hong Ye
Manesis Nick
Borden Ladner Gervais Llp
Coopervision International Holding Company Lp
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