Patent ID: 7198639

Claim:
A polymeric material comprising a reaction product of: (a) a polyhedral oligomeric silsesquioxane (“POSS”) having a formula of wherein the R1 groups are the same or different reactive groups selected from the group consisting of hydrogen, hydroxy, alkoxy, amine, chlorine, epoxide, isocyanate, methacrylate, acrylate, methacrylamide, acylamide, nitrile, norbornenyl, vinyl, styrenyl and thiol, with or without a spacer selected from the group consisting of hydrocarbon groups, silyl groups, and siloxy groups; and the R groups may be the same or different selected from the group consisting of C 1-30 alkyl and C 6-30 aryl; and (b) a polymeric composition having other reactive groups that are capable of reacting with the reactive R 1 groups to form the polymeric material; wherein the polymeric material further has properties compatible with an ophthalmic environment.