Back to results
US 2010/0168438 A1Published application
Dual function uv-absorbers for ophthalmic lens materials
AssigneeAlcon Inc.
InventorDouglas C. Schlueter
Life of this patent
Estimating the term…
Abstract
Disclosed are UV absorbers that contain a labile functional group capable of initiating free radical polymerization.
Claims13
(canceled)
(canceled)
(canceled)
(canceled)
A dual function UV absorber of the formula:
- where Y=nothing or O;
- R=a benzotriazole or benzophenone UV absorber;
- R′=a benzotriazole or benzophenone UV absorber;
- —(CH2)nH (n=1-18);
- —CH(CH3)CH3;
- —C(CH3)3;
- —C6H5;
- —CH(CH3)CH2CH3;
- —C(CH3)2CH2C(CH3)3;
- —C(CH3)2(CH2)4H;
- —C(CH2CH3)2(CH2)4H;
- —C(CH3)2(CH2)5H;
- —C(CH2CH3)2(CH2)5H;
- —C(CH3)2(CH2)6H;
- —C(CH2CH3)2(CH2)6H;
- —CH2CH(CH2CH3)(CH2)4H;
- or
14 more elements
A dual function UV absorber of the formula:
- where R=a benzotriazole or benzophenone UV absorber;
- R′=a benzotriazole or benzophenone UV absorber;
- —(CH2)nH (n=1-18);
- —CH(CH3)CH3;
- —C(CH3)3;
- —C6H5;
- —CH(CH3)CH2CH3;
- —C(CH3)2CH2C(CH3)3;
- —C(CH3)2(CH2)4H;
- —C(CH2CH3)2(CH2)4H;
- —C(CH3)2(CH2)5H;
- —C(CH2CH3)2(CH2)5H;
- —C(CH3)2(CH2)6H;
- —C(CH2CH3)2(CH2)6H;
- —CH2CH(CH2CH3)(CH2)4H;
- —C(CH3)2C6H5;
- or
14 more elements
A dual function UV absorber of the formula:
- R—O—O—R [6]
- where R=a benzotriazole or benzophenone UV absorber;
- R′═H, a benzotriazole or benzophenone UV absorber;
- —(CH2)nH (n=1-18);
- —CH(CH3)CH3;
- —C(CH3)3;
- —CH(CH3)CH2CH3;
- —C(CH3)2CH2C(CH3)3;
- —C(CH3)2(CH2)4H;
- —C(CH2CH3)2(CH2)4H;
- —C(CH3)2(CH2)5H;
- —C(CH2CH3)2(CH2)5H;
- —C(CH3)2(CH2)6H;
- —C(CH2CH3)2(CH2)6H;
- —CH2CH(CH2CH3)(CH2)4H;
- or —C(CH3)2C6H5.
13 more elements
A dual function UV absorber of the formula:
- where R=a benzotriazole or benzophenone UV absorber;
- R′═H;
- a benzotriazole or benzophenone UV absorber;
- (CH2)nH (n=1-18);
- CH(CH3)CH3;
- C(CH3)3;
- CH(CH3)CH2CH3;
- C(CH3)2CH2C(CH3)3;
- C(CH3)2(CH2)4H;
- C(CH2CH3)2(CH2)4H;
- C(CH3)2(CH2)5H;
- C(CH2CH3)2(CH2)5H;
- C(CH3)2(CH2)6H;
- C(CH2CH3)2(CH2)6H;
- CH2CH(CH2CH3)(CH2)4H;
- or C(CH3)2C6H5.
13 more elements
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.