Ultraviolet absorbing polymers comprising 2-hydroxy-5-acrylyloxyphenyl-2H-benzotriazoles
First Claim
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1. A compound of the formula ##STR9## wherein X is H or halogen,R1 is selected from the group consisting of H, CH3 and t-alkyl of 4 to 6 carbons,R2 is C2 -C10 alkylene which may be straight chain or branched, andR3 is H or CH3 ;
- andhomopolymers thereof.
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Abstract
Ultraviolet light absorbing polymer compositions comprising copolymers of 2-Hydroxy-5-acrylyloxyphenyl-2H-benzotriazoles with one or more other monomers copolymerizable therewith, particularly acrylic monomers are useful in the manufacture of occular devices, particularly intraoccular lenses and contact lenses. Polymers of the disclosed benzotriazoles may be added to other organic materials to impart ultraviolet absorbing properties thereo.
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Citations
23 Claims
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1. A compound of the formula ##STR9## wherein X is H or halogen,
R1 is selected from the group consisting of H, CH3 and t-alkyl of 4 to 6 carbons, R2 is C2 -C10 alkylene which may be straight chain or branched, and R3 is H or CH3 ; - and
homopolymers thereof. - View Dependent Claims (2, 3, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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4. The compound 2-(2'"'"'-Hydroxy-5'"'"'-methacryloxyethylphenyl)-2H-benzotriazole and homopolymers thereof.
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5. The compound 2-(2'"'"'-Hydroxy-5'"'"'-methacrylyloxyethylphenyl)-5-chloro-2H-benzotriazole and homopolymers thereof.
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6. The compound 2-(2'"'"'-Hydroxy-5'"'"'-methacrylyloxypropylphenyl)-2H-benzotriazole and homopolymers thereof.
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7. The compound 2-(2'"'"'-Hydroxy-5'"'"'-methacrylyloxypropylphenyl)-5-chloro-2H-benzotriazole and homopolymers thereof.
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8. The compound 2-(2'"'"'-Hydroxy-5'"'"'-methacrylyloxypropyl-3'"'"'-tert-butylphenyl)-2H-benzotriazole and homopolymers thereof.
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9. The compound 2-(2'"'"'-Hydroxy-5'"'"'-methacrylyloxypropyl-3'"'"'-tert-butylphenyl)-5-chloro-2H-benzotriazole and homopolymers thereof.
Specification