High refractive index polymeric siloxysilane compositions

Details High refractive index polymeric siloxysilane compositions High refractive index polymeric siloxysilane compositions

C - Chemistry, Metallurgy

07

F

C07F 7/18 (2006.01) A61L 27/16 (2006.01) C07F 7/08 (2006.01) C08G 77/04 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2465498

Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more siloxysilane monomers or the copolymerization of one or more siloxysilane monomers with one or more aromatic or non-aromatic non-siloxy monomers, hydrophobic monomers or hydrophilic monomers.

L'invention concerne des compositions polymères à indice de réfraction relativement élevé, optiquement transparentes, et des dispositifs ophtalmiques, notamment des lentilles intraoculaires, des lentilles de contact et des implants cornéens fabriqués à partir de ces compositions. Les compositions polymères préférées sont produites par la polymérisation d'un ou de plusieurs monomères de siloxylane ou la copolymérisation d'un ou de plusieurs monomères de siloxylane avec un ou plusieurs monomères non siloxy aromatiques ou non aromatiques, des monomères hydrophobes ou des monomères hydrophiles.

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