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US4803254A
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Vinylsilylalkoxy arylbenzotriazole compounds and UV absorbing compositions made therefrom
Assignee: Iolab Corp
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Filing: 1987-03-11
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Granted: 1989-02-07
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Expires: 2007-03-11
Abstract
Abstract Vinylsilylalkoxy arylbenzotriazol monomers such as 2-[3'-t-butyl-5'-(3-"-dimethylvinylsilylpropoxy)-2'-hydroxy-phenyl]-5-methoxybenzotriazole are disclosed. These monomers can be incorporated in optically clear silicone polymers to form intraocular lenses, contact lenses, and the like, which have UV absorbing properties.
Inventors
- 👤 Gary B. Dunks
- 👤 Akira Yamada
- 👤 Namassivaya Doddi
- 👤 Charles D. Beard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:08
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/02; C07D249/04; C07D249/06; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61L; A61L27/00; A61L27/14; A61L27/18; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/0812; G; G02; G02B; G02B1/00; G02B1/04; G02B1/041; G02B1/043; A61F2002/16965
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
91 words
A vinylsilylalkoxy arylbenzotriazole compound of the formula: ##STR4## wherein R 1 and R 3 individually represent hydrogen, halo, alkoxy of up to 6 carbon atoms, or X, wherein R 2 represents hydrogen or alkyl of up to six carbon atoms, and wherein X represents a group of the formula: --O--R'Si(R").sub.2 CH═CH.sub.2 wherein R' represents alkylene of from 1 to 10 carbon atoms, and wherein each R" individually represents alkyl of up to 4 carbon atoms or aryl, provided that one, and only one, of R 1 or R 3 represents X.
Claim 2
Dependent Claim
91 words
A vinylsilylalkoxy arylbenzotriazole compound of the formula: ##STR4## wherein R 1 and R 3 individually represent hydrogen, halo, alkoxy of up to 6 carbon atoms, or X, wherein R 2 represents hydrogen or alkyl of up to six carbon atoms, and wherein X represents a group of the formula: --O--R'Si(R").sub.2 CH═CH.sub.2 wherein R' represents alkylene of from 1 to 10 carbon atoms, and wherein each R" individually represents alkyl of up to 4 carbon atoms or aryl, provided that one, and only one, of R 1 or R 3 represents X.
Claim 3
Dependent Claim
10 words
The compound of claim 1 wherein said compound is 2-[3'-t-butyl-5'-(3"-dimethylvinylsilylpropoxy)-2'-hydroxyphenyl]-5-methoxybenzotriazole.
Claim 4
Dependent Claim
10 words
The compound of claim 1 wherein siad compound is 2-[3'-t-butyl-5'-(3"-dimethylvinylsilylpropoxy)-2'-hydroxyphenyl]-5-chlorobenzotriazole.
Claim 5
Dependent Claim
10 words
The compound of claim 1 wherein said compound is 2-(3'-t-butyl-2'-hydroxy-5'-methoxyphenyl)-5-(3"-dimethylvinylsilylpropoxy)benzotriazole.
Claim 6
Dependent Claim
21 words
An optically clear siloxane polymer having ultraviolet light absorbing properties, said polymer having covalently bonded therein the compound of claim 1.
Claim 7
Dependent Claim
21 words
An optically clear siloxane polymer having ultraviolet light absorbing properties, said polymer having covalently bonded therein the compound of claim 2.
Claim 8
Dependent Claim
21 words
An optically clear siloxane polymer having ultraviolet light absorbing properties, said polymer having covalently bonded therein the compound of claim 3.
Claim 9
Dependent Claim
21 words
An optically clear siloxane polymer having ultraviolet light absorbing properties, said polymer having covalently bonded therein the compound of claim 4.
Claim 10
Dependent Claim
14 words
The optically clear polymer of claim 5 in the form of an intraocular lens.
Claim 11
Dependent Claim
14 words
The optically clear polymer of claim 6 in the form of an intraocular lens.
Claim 12
Dependent Claim
14 words
The optically clear polymer of claim 7 in the form of an intraocular lens.
Claim 13
Dependent Claim
14 words
The optically clear polymer of claim 8 in the form of an intraocular lens.
References Cited (Backward Citations)
US4528311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |