High refractive index aromatic-based siloxane difunctional macromonomers
AssigneeBausch & Lomb Incorporated
InventorsJoseph C. Salamone, Jay F. Kunzler, Richard M. Ozark, David E. Seelye
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Abstract
Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.
Claims9
A polymeric composition produced through the polymerization of one or more aromatic-based siloxane macromonomers comprising:
- wherein the R groups may be the same or different aromatic-based substituents;
- R1 is an aromatic-based substituent or an alkyl;
- x is a non-negative integer;
- and y is a natural number, and wherein said aromatic-based substituent is selected from the group consisting of
- with the proviso that at least one aromatic-based substituent is present in said aromatic-based polysiloxane macromonomer.
Dependencies are inferred from the claim text.