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US 8,476,390 B2Granted
Light filters comprising P-nitrophenylazo salicylic acid derivatives thereof
OwnerPatrick H. Benz, Jose A. Orsinventors
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Abstract
Polymer and monomer compositions based on a chromophore and improved light absorption. Lens materials can be fabricated. A composition comprising: a compound comprising a polymerizable vinyl group covalently linked to a benzene ring-based chromophore comprising: a substituent comprising a carbonyl group at the 1-position; a substituent comprising a hydroxy, ether, ester or a combination thereof at the 2-position; and a substituent comprising a (p-Nitrophenylazo) group at the 4 position of the benzene ring, including salts.
Claims32
A composition comprising:
- a compound comprising a polymerizable vinyl group covalently linked to a benzene ring-based chromophore comprising:
- a substituent comprising a carbonyl group at the 2-position of the benzene ring;
- a substituent comprising a hydroxy, ether, ester or a combination thereof at the 1-position of the benzene ring;
- and
- a substituent comprising a p-nitrophenylazo group at the 4-position of the benzene ring, including salts thereof.
2 more elements
A composition comprising a compound represented by the formula:
- said compound comprising at least one polymerizable vinyl group and wherein,
- R1 comprises H, O, N, C or a combination thereof;
- R2 comprises H, N or C or a combination thereof;
- and
- X and Y each independently comprise H, O, N, C, or a combination thereof, including salts thereof.
2 more elements
A composition comprising:
- a polymer comprising a polymer backbone and at least one side group, wherein the side group comprises a benzene ring-based chromophore comprising:
- a substituent comprising a carbonyl group at the 2-position of the benzene ring;
- a substituent comprising a hydroxy, ether, ester or a combination thereof at the 1-position of the benzene ring;
- and
- a substituent comprising a p-nitrophenylazo group at the 4 position of the benzene ring, including salts thereof.
2 more elements
Dependencies are inferred from the claim text.