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US 11,958,819 B2Granted
Compounds for optically active devices
AssigneeJohnson & Johnson Surgical Vision, Inc.
InventorsLars Dobelmann-Mara, Stefan Riedmueller, Martin Schraub
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Abstract
The present invention relates to copolymers, particularly to copolymers comprising a photoactive unit, the copolymers being particularly suitable for ophthalmic devices. The copolymers include one or more different polymer units in addition to the photoactive unit, such as polymerized units derived from ethylene, propylene, an acrylate, a methacrylate, or a styrene.
Claims4
A copolymer comprising:
- one or more polymer units M1 selected from units of the following formulae (P-1) to (P-63);
- and one or more different polymer units:
- wherein,
- each * in the formulae indicates a linkage to an adjacent unit of the copolymer, and n indicates the number of units of the formula.
1 more element
Dependencies are inferred from the claim text.