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US 2011/0046259 A1Published application
Uv-absorbers for ophthalmic lens materials
AssigneeAlcon Inc.
InventorWalter R. Laredo
Life of this patent
Estimating the term…
Abstract
UV absorbing monomers that are particularly useful in ophthalmic devices are disclosed.
Claims20
1-5. (canceled)
An ophthalmic device material comprising the (i) a UV absorber of formula [I]
- wherein:
- R1═H, CH3, CH3CH2, (CH3)2CH, CH3CH2CH2, HOCH2, CH2F, (CH3)3C, (CH3)3COCH2, HOC(O)CHOCH3, C(O)OH, CH3OC(O)CHNH2CH2, CH3CH2OC(O)(CH2)2, (CH3O)2CH, (CH3)2CHOC(O), CH3CH2OC(O), CH3OC(O), (CH3CH2O)2CH, CH3OC(O)(CH2)2, CH3OC(O)CH2NHCH2, CH3CH2OC(O)CH2, C6H4OH, C6H5CH2, C6H4CNCH2, C6H4NO2, C6H4NH2CH2, CH2CH2CHOC(O), CH2═CHC(O)OCH2, CH2═CCH3C(O)OCH2, CH2═CHC(O)OCH2CH2NHC(O), CH2═CCH3C(O)OCH2CH2NHC(O), CH2═CHC(O)OCH2CH2NHC(O)OCH2, or CH2═CCH3C(O)OCH2CH2NHC(O)OCH2;
- R2, R3 and R4 independently ═H, OH, CH3O, CH3CH2O, CH3CH2CH2O, (CH3)2CHO, (CH3)3CO, CH3C(O)O, C8H5CH2O, HOCH2CH2O, HOCH2CH2CH2O, CH2═CHC(O)OCH2CH2O, or CH2═CCH3C(O)OCH2CH2O, CH2═CCH3C(O)O, CH2═CHC(O)O, CH2═CHC(O)OCH2CH2NHC(O), CH2═CCH3C(O)OCH2CH2NHC(O)OCH2CH2O or R2═H and R3 and R4 taken together form a methylenedioxy group;
- and provided that at least one of R1, R2, R3, and R4 must contain a methacrylate or acrylate moiety, and
- (ii) a device-forming monomer selected from the group consisting of acrylic monomers and silicone-containing monomers.
2 more elements
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Dependencies are inferred from the claim text.