US4260768A
Expired / Lapsed
US
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Copolymerizable, ultraviolet light absorber 2-(2H-benzotriazol-2-yl)-4-alkylphenol acrylic acid esters
Assignee: ISP Investments LLC
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Filing: 1980-01-17
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Granted: 1981-04-07
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Expires: 2000-01-17
Abstract
Abstract This invention relates to copolymerizable ultraviolet light absorber compounds having the formula: ##STR1## where R is hydrogen or alkyl C 1 -C 6 ; and Y is a copolymerizable radical selected from acrylyl, acryloxyalkyl, acryloxyhydroxyalkyl, and alkylacryloxyhydroxyalkyl.
Inventors
- 👤 Donald H. Lorenz
- 👤 Bruce A. Gruber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:44
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/494; A61K8/496; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; C; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C07D249/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
39 words
Ultraviolet light absorber compounds having the formula ##STR9## where R is hydrogen or alkyl C 1 -C 6 ; and Y is a radical 3-12 carbon atoms and selected from the group consisting of acrylyl, methacrylyl, acryloxyalkyl and alkylacryloxyhydroxyalkyl.
Claim 2
Dependent Claim
39 words
Ultraviolet light absorber compounds having the formula ##STR9## where R is hydrogen or alkyl C 1 -C 6 ; and Y is a radical 3-12 carbon atoms and selected from the group consisting of acrylyl, methacrylyl, acryloxyalkyl and alkylacryloxyhydroxyalkyl.
Claim 3
Dependent Claim
9 words
Compounds according to claim 1 wherein R is methyl.
Claim 4
Dependent Claim
14 words
Compounds according to claim 1 in which Y is acrylyl, methacrylyl, 3-acryloxy-2-hydroxypropyl or 3-methacryloxy-2-hydroxypropyl.
Claim 5
Dependent Claim
10 words
A compound according to claim 1 which is 4-methyl-2-(2H-benzotriazol-2-yl)-phenyl acrylate.
Claim 6
Dependent Claim
10 words
A compound according to claim 1 which is 4-methyl-2-(2H-benzotriazol-2-yl)-phenyl methacrylate.
Claim 7
Dependent Claim
10 words
A compound according to claim 1 which is 3-[4-methyl-2-(2H-benzotriazol-2-yl)]-3-phenoxy-2-hydroxypropyl acrylate.
Claim 8
Dependent Claim
10 words
A compound according to claim 1 which is 3-[4-methyl-2-(2H-benzotriazol-2-yl)]-3-phenoxy-2-hydroxypropyl methacrylate.
References Cited (Backward Citations)
US3159646A
Cited
US3936418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-06 | 1984-10-06 | 1985-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-06 | 1988-10-06 | 1989-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-06 | 1992-10-06 | 1993-04-07 | $7700.00 | Window Closed / Lapsed |