US4104368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for protecting skin and hair
Assignee: Stepan Co
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Filing: 1972-07-12
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Granted: 1978-08-01
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Expires: 1992-07-12
Abstract
Abstract A composition which provides both a conditioning and sun-screening effect for hair and skin wherein the active agent comprises a salt of certain long chain cationic bases and certain acidic substances wherein the acidic moiety provides the sun-screening effect and the cationic moiety provides the tissue conditioning effect. The acidic substances have an acidic or pseudoacidic hydrogen or a lactone thereof, whereas the cationic moiety are long-chain quaternary ammonium salts.
Inventors
- 👤 Arnold Lada
- 👤 James J. Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:47
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/445
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
A method of protecting human skin or hair from the effects of erythematous light rays in the range of wave length of between about 2200A and 3120A which comprises applying to said skin or hair an effective amount sufficient to obtain effective radiation absorption within such range of stearyl dimethyl benzyl ammonium p-aminobenzoate.
Claim 2
Independent Claim
53 words
A method of protecting human skin or hair from the effects of erythematous light rays in the range of wave length of between about 2200A and 3120A which comprises applying to said skin or hair an effective amount sufficient to obtain effective radiation absorption within such range of stearyl dimethyl benzyl ammonium p-aminobenzoate.
Claim 3
Dependent Claim
65 words
A composition comprising a dispersion of the compound stearyl dimethyl benzyl ammonium p-aminobenzoate in a diluent selected from the group consisting of oil, cream, ointment, spray and a solvent in which said compound is soluble, said compound being present in a sufficient amount to obtain effective radiation absorption in the range of between about 2200A and about 3120A when applied to human skin or hair.
Claim 4
Dependent Claim
65 words
A composition comprising a dispersion of the compound stearyl dimethyl benzyl ammonium p-aminobenzoate in a diluent selected from the group consisting of oil, cream, ointment, spray and a solvent in which said compound is soluble, said compound being present in a sufficient amount to obtain effective radiation absorption in the range of between about 2200A and about 3120A when applied to human skin or hair.
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) | 1981-07-31 | 1982-01-30 | 1982-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-31 | 1986-01-30 | 1986-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-31 | 1990-01-30 | 1990-08-01 | $7700.00 | Window Closed / Lapsed |