Light filters comprising a naturally occurring chromophore and derivatives thereof
AssigneeBenz Research and Development Corporation
InventorsPatrick H. Benz, Jose A. Ors
Life of this patent
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Abstract
A composition comprising a polymer backbone and at least one side group, wherein the side group comprises a benzene ring-based chromophore comprising a ketone at the 1-position, a substituted or unsubstituted amino group at the 2-position, and an oxygen atom at the 3-position of the benzene ring. The chromophore is a kynurenine-based compound. Methods of making and using the composition are also provided. The composition can be used in an ophthalmic lens or device for protecting the retina by blocking UV rays and filtering violet rays.
Claims21
A composition comprising:
- a compound comprising a polymerizable vinyl group covalently linked to a benzene ring-based chromophore comprising a ketone at the 1-position, a substituted or unsubstituted amino group at the 2-position, and an oxygen atom at the 3-position of the benzene ring, wherein the chromophore does not comprise an oxidative polymerization product of 3-hydroxykynurenine, and wherein the polymerizable vinyl group is linked to the chromophore through the oxygen atom at the 3-position of the benzene ring.
A composition comprising:
- a compound comprising a polymerizable vinyl group covalently linked to a benzene ring-based chromophore comprising a ketone at the 1-position, a substituted or unsubstituted amino group at the 2-position, and an oxygen atom at the 3-position of the benzene ring, wherein the chromophore does not comprise an oxidative polymerization product of 3-hydroxykynurenine, and wherein the polymerizable vinyl group is linked to the chromophore via a linker group, and wherein the polymerizable vinyl group is linked to the chromophore at the 3-position of the benzene ring.
A composition comprising:
- a compound comprising a polymerizable vinyl group covalently linked to a benzene ring-based chromophore comprising a ketone at the 1-position, a substituted or unsubstituted amino group at the 2-position, and an oxygen atom at the 3-position of the benzene ring, wherein the chromophore does not comprise an oxidative polymerization product of 3-hydroxykynurenine, and wherein the polymerizable vinyl group comprises a methacrylate or acrylate moiety which is linked to the chromophore via an alkylene or alkylenoxy linker group, and wherein the polymerizable vinyl group is linked to the chromophore at the 3-position of the benzene ring.
A composition comprising:
- a compound represented by
- wherein R1 is H or alkyl, or comprises an amino acid moiety or derivative thereof;
- wherein R2 and R3 are individually H or alkyl;
- wherein R4 comprises a polymerizable vinyl group;
- and
- wherein X is an optional electron-donating group linked to the benzene ring at the 4, 5, or 6 position.
Dependencies are inferred from the claim text.