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US 11,970,431 B2Granted
Polymerizable absorbers of UV and high energy visible light
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsGhulam Maharvi, Shivkumar Mahadevan, Stephen C. Arnold, Patricia Martin, Leilani K. Sonoda, Dola Sinha
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Abstract
Described are polymerizable high energy light absorbing compounds of formula I: Wherein Y, Pg, R2, R3, R4, R5, and R6 are as described herein. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices.
Claims12
An ophthalmic device that is a free radical reaction product of a reactive mixture comprising:
- one or more monomers suitable for making the ophthalmic device;
- and a polymerizable high energy light absorbing compound comprising a compound of formula I:
- wherein:
- Y is a C1-C8 alkylene, alkyleneoxy, C1-C8 oxaalkylene, C1-C8 thiaalkylene, C1-C8 alkylene-ester-C1-C8 alkylene, C1-C8 alkylene-amide-C1-C8 alkylene, or C1-C8 alkylene-amine-C1-C8 alkylene group;
- Pg is a styryl, vinyl carbonate, vinyl ether, vinyl carbamate, N-vinyl lactam, N-vinylamide, (meth)acrylate, or (meth)acrylamide group;
- R1 is H or C1-C6 alkyl;
- R2 and R3 are independently C1-C6 alkyl;
- R4 is C1-C6 alkyl;
- and
- R5 and R6 are independently H or C1-C6 alkyl.
7 more elements
Dependencies are inferred from the claim text.