High refractive index and optically clear copoly(carbosilane...

Details High refractive index and optically clear copoly(carbosilane... High refractive index and optically clear copoly(carbosilane...

2006-06-30

2008-08-05

Zimmer, Marc S (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S107000, C523S113000, C528S025000, C528S031000, C528S035000, C528S043000, C623S006560, C623S006600, C524S091000, C524S359000, C524S588000, C428S405000

Reexamination Certificate

active

07407992

ABSTRACT:
High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.

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