US3696193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cosmetic preparation containing 2-phenyl-benzoxazoles
Assignee: Novartis AG
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Filing: 1971-06-02
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Granted: 1972-10-03
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Expires: 1991-06-02
Abstract
Abstract The invention relates to ultraviolet absorbers with a specific absorption range which makes them suitable for cosmetic uses. These ultraviolet absorbers correspond to the formula WHERE R1 represents a hydrogen atom or an alkyl radical, one of the symbols A1 or Z1 is a sulphonic acid function and Z1, when A1 stands for one of the above-mentioned sulphonic acid functions, represents a hydrogen atom or an alkyl group, or conversely A1 represents a hydrogen atom when Z1 stands for one of these sulphonic acid functions.
Inventors
- 👤 Leonardo Guglielmetti
- 👤 Max Duennenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:39
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/56; C07D263/57
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
21 words
A cosmetic preparation according to claim 1, wherein the 2-phenylbenzoxazole compound contains at least one alkyl of 1 to 4 carbons.
Claim 2
Dependent Claim
67 words
A cosmetic preparation according to claim 1, wherein the 2-phenylbenzoxazole compound has the formula where R2 represents a member selected from the group consisting of methyl and tertiary butyl and A2 stands for -SO3 Me or -SO2NHX2, where Me is selected from the group consisting of an alkali metal ion, an ammonium ion and a triethanolamine salt ion, and X2 represents alkyl of one to eight carbons.
Claim 3
Dependent Claim
22 words
A cosmetic preparation according to claim 1, wherein the 2-phenyloxazole compound is the triethanolamine salt of the 2-(4''-methylphenyl)-benzoxazole-6-sulfonic acid of the formula
Claim 4
Dependent Claim
19 words
A process for protecting the skin from ultraviolet rays which comprises applying thereto the preparation defined in claim 1.
Claim 5
Dependent Claim
19 words
A process for protecting the skin from ultraviolet rays which comprises applying thereto the preparation defined in claim 3.
Claim 6
Dependent Claim
19 words
A process for protecting the skin from ultraviolet rays which comprises applying thereto the preparation defined in claim 4.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |