US4338211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid surfactant skin cleanser with lather boosters
Assignee: Procter and Gamble Co
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Filing: 1981-04-09
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Granted: 1982-07-06
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Expires: 2001-04-09
Abstract
Abstract A liquid skin cleanser composition with improved lathering characteristics, comprising: (A) 5-30 weight percent anionic surfactant selected from the group consisting of fatty alkyl sulfates, fatty alkyl ether sulfates and mixtures thereof; (B) 0.5-12 weight percent of a lather boosting mixture consisting essentially of free fatty acids, fatty alkylol amide having a ratio of 1:3 to 3:1, (C) water; wherein said free fatty acids have a carbon atom chain length of from 8 to 18 and wherein said fatty acids consist of at least 25% of carbon chain lengths of less than 14, and wherein said lather boosting mixture is present in an amount equal to 10% to 40% of the weight to the surfactant, and wherein said composition has a pH of from about 4.0 to about 7.0.
Inventors
- 👤 Paul Stiros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:50
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/463; A61K8/40; A61K8/42; A61Q; A61Q19/00; A61Q19/10; A61K2800/00; A61K2800/40; A61K2800/59; A61K2800/596
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
133 words
A liquid skin cleanser composition comprising: (A) about 5-30 weight percent anionic surfactant selected from the group consisting of fatty alkyl sulfates, fatty alkyl ether sulfates and mixtures thereof; (B) about 0.5-12 weight percent of a lather boosting mixture consisting essentially of free fatty acids, fatty alkylol amide having a ratio of about 1:3 to about 3:1; and (C) water; wherein said free fatty acids have a carbon atom chain length of from 8 to 18 and wherein said fatty acids consist of at least about 25% of carbon chain lengths of less than 14, and wherein said lather boosting mixture is present in an amount equal to about 10% to about 40% of the weight to the surfactant, and wherein said composition has a pH of from about 4.0 to about 7.0.
Claim 2
Dependent Claim
133 words
A liquid skin cleanser composition comprising: (A) about 5-30 weight percent anionic surfactant selected from the group consisting of fatty alkyl sulfates, fatty alkyl ether sulfates and mixtures thereof; (B) about 0.5-12 weight percent of a lather boosting mixture consisting essentially of free fatty acids, fatty alkylol amide having a ratio of about 1:3 to about 3:1; and (C) water; wherein said free fatty acids have a carbon atom chain length of from 8 to 18 and wherein said fatty acids consist of at least about 25% of carbon chain lengths of less than 14, and wherein said lather boosting mixture is present in an amount equal to about 10% to about 40% of the weight to the surfactant, and wherein said composition has a pH of from about 4.0 to about 7.0.
Claim 3
Dependent Claim
43 words
A liquid skin cleanser composition according to claim 1 wherein said lather boosting mixture has a ratio of about 2:1 to about 1:2 and is present at a level of from about 15% to about 30% by weight of the total surfactant present.
Claim 4
Dependent Claim
33 words
A liquid skin cleanser composition according to claim 2 wherein said free fatty acids consist of at least 50% by weight of fatty acids having carbon atom chain lengths of less than 14.
Claim 5
Dependent Claim
16 words
A liquid skin cleanser composition according to claim 3 wherein said alkylol amide is coconut monoethanolamide.
Claim 6
Dependent Claim
36 words
A liquid skin cleanser composition according to claim 4 wherein the surfactant is selected from the group consisting of ammonium lauryl sulfate, sodium lauryl sulfate, ammonium lauryl ether sulfate, sodium lauryl ether sulfate and mixtures thereof.
Claim 7
Dependent Claim
19 words
A liquid skin cleanser composition according to claim 5 wherein the pH is from about 5.0 to about 6.0.
Claim 8
Dependent Claim
31 words
A liquid skin cleanser composition according to claim 6 wherein the boosting mixture is present in an amount of from about 10% to about 30% of the weight of the surfactant.
Claim 9
Dependent Claim
16 words
A liquid skin cleanser composition according to claim 7 wherein the surfactant is ammonium lauryl sulfate.
Claim 10
Dependent Claim
25 words
A liquid skin cleanser composition according to claim 7 wherein the surfactant is ammonium lauryl ether sulfate having ethoxy groups of from 1 to 6.
Claim 11
Dependent Claim
39 words
A liquid skin cleanser composition according to claims 1, 2, 3, 4, 5, 6, or 7, wherein the surfactant is a mixture of ammonium lauryl sulfate and ammonium lauryl ether sulfate having ethoxy groups of from 1 to 13.
Claim 12
Dependent Claim
33 words
A liquid skin cleanser composition according to claims 1, 2, 3, 4, 5, 6, 7, 8 or 9, wherein the surfactant is present at a level of from about 10% to about 25%.
Claim 13
Dependent Claim
33 words
A liquid skin cleanser composition according to claims 1, 2, 3, 4, 5, 6, 7, 8 or 9, wherein the surfactant is present at a level of from about 12% to about 22%.
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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) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |