US4254102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substantive PABA compositions
Assignee: Bayer Consumer Care Holdings LLC
•
Filing: 1975-09-08
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Granted: 1981-03-03
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Expires: 1995-09-08
Abstract
Abstract Novel topical sun-protective PABA formulations are provided which retain good protective index levels, even after moisture exposure. These cosmetically elegant formulations contain certain fatty alcohols and nonionic surfactants, and preferably certain cellulosics.
Inventors
- 👤 Carl Kaplan
- 👤 Edward Marlowe
- 👤 Robert M. Sayre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:48
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/445; A61Q; A61Q17/00; A61Q17/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
88 words
A cosmetically elegant, substantive, sun-protective aqueous composition comprising by weight 2 to 10% PABA and 2 to 6% of a cosmetically acceptable C 12 -C 18 fatty alcohol which is solid at 20° C. and 0.5 to 2% of a cosmetically acceptable nonionic surfactant of the polyoxyethylene type having an HLB value of between about 9 and 18, the ratio of said alcohol to surfactant being in the range of 2-6 to 1, and about 45 to 65% ethanol with the balance of the vehicle being substantially water.
Claim 2
Dependent Claim
88 words
A cosmetically elegant, substantive, sun-protective aqueous composition comprising by weight 2 to 10% PABA and 2 to 6% of a cosmetically acceptable C 12 -C 18 fatty alcohol which is solid at 20° C. and 0.5 to 2% of a cosmetically acceptable nonionic surfactant of the polyoxyethylene type having an HLB value of between about 9 and 18, the ratio of said alcohol to surfactant being in the range of 2-6 to 1, and about 45 to 65% ethanol with the balance of the vehicle being substantially water.
Claim 3
Dependent Claim
24 words
A composition according to claim 1 wherein said surfactant is a polyoxyethylene ether of a cosmetically acceptable alcohol having 12 to 18 carbon atoms.
Claim 4
Dependent Claim
13 words
A composition according to claim 1 wherein said fatty alcohol is cetearyl alcohol.
Claim 5
Dependent Claim
18 words
A composition according to claim 1 wherein said fatty alcohol to surfactant ratio is about 4 to 1.
Claim 6
Dependent Claim
17 words
A composition according to claim 1 which additionally contains 0.5 to 5% of a water-soluble cellulosic polymer.
Claim 7
Dependent Claim
12 words
A composition according to claim 5 wherein said cellulosic polymer is hydroxyethylcellulose.
Claim 8
Dependent Claim
11 words
A composition according to claim 3 wherein said surfactant is coceth-6.
Claim 9
Dependent Claim
11 words
A composition according to claim 3 wherein said surfactant is ceteareth-5.
Claim 10
Dependent Claim
11 words
A composition according to claim 1 which additionally contains titanium dioxide.
Claim 11
Dependent Claim
21 words
A composition according to claim 1 which additionally contains 0.5 to 5% of a dermatogically acceptable sunscreen of the benzophenone group.
Claim 12
Dependent Claim
11 words
A composition according to claim 10 wherein said benzophenone is benzophenone-8.
Claim 13
Dependent Claim
21 words
A water-resistant method for protecting the skin against actinic radiation comprising evenly applying to said skin a composition of claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |