Compositions and methods for producing silicone hydrogel...

Details Compositions and methods for producing silicone hydrogel... Compositions and methods for producing silicone hydrogel...

C - Chemistry, Metallurgy

08

F

C08F 26/10 (2006.01)

Patent

CA 2618652

Compositions, such as lens precursor compositions, and methods for producing lens precursor compositions have been invented. The present methods include forming a premix composition, which can include one or more monomeric components, forming a macromer composition, which includes one or more silicon containing macromers, forming a premix/initiator composition, which can include a photoinitiator, and contacting the premix/initiator composition with the macromer composition to form a polymerizable monomer-containing composition useful in the production of producing silicone hydrogel contact lenses.

L'invention concerne des compositions, telles que des compositions de précurseur de lentilles, et des procédés de production des compositions de précurseur de lentilles. Les procédés consistent à former une composition de pré-mélange, pouvant comprendre un ou plusieurs composants monomères, à former une composition de macromères, comprenant un ou plusieurs macromères de silicone, à former une composition de pré-mélange/initiateur, pouvant comprendre un photoinitiateur, et à mettre en contact la composition de pré-mélange/initiateur avec la composition de macromères, aux fins de formation d'une composition renfermant des monomères polymérisables utile dans la production de lentilles de contact en silicone-hydrogel.

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