US4725430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid stable dibenzyl monosorbitol acetal gels
Assignee: Procter and Gamble Co
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Filing: 1985-09-13
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Granted: 1988-02-16
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Expires: 2005-09-13
Abstract
Abstract A clear or translucent cosmetic stick containing an acidic material and a reactive solvent, using dibenzyl monosorbitol acetal as the gelling agent an N-(2-hydroxyethyl) acetamide as the stabilizing agent. In particular are included antiperspirant sticks with an astringent metal salt and also containing lower aliphatic mono- and dihydric alkanols.
Inventors
- 👤 Thomas J. Schamper
- 👤 Martin M. Perl
- 👤 James D. Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:53
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K8/0216; A61K8/0229; A61K8/18; A61K8/30; A61K8/33; A61K8/34; A61K8/345; A61K8/36; A61K8/361; A61K8/40; A61K8/42; A61K8/58; A61K8/585; A61Q; A61Q15/00; A61K2800/00; A61K2800/20; A61K2800/26; A61K2800/262; A61K2800/40; A61K2800/52; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
169 words
A solid transparent, gelled antiperspirant composition consisting essentially of: (a) 1 to 80% by weight of at least one reactive solvent selected from the group consisting of water and lower primary mono- and dihydric alcohols; (b) 0 to 75% by weight of a C 3 to C 6 secondary aliphatic monohydric or dihydric alcohol or mixture thereof; (c) 1 to 10% by weight of dibenzyl monosorbitol acetal; (d) 0 to 25% by weight of a volatile cyclic dimethylsiloxane liquid; (e) 5 to 25% by weight of an acidic antiperspirant-active metal salt; (f) 0 to 2.5% by weight of a C 12 to C 20 fatty acid; and (g) 1 to 85% by weight of a gel stabilizer; said gel stabilizer comprising N-(2-hydroxyethyl)acetamide, alone, or combined with one or more of magnesium sulfate, in an amount up to 1% by weight, zinc acetate, in an amount up to 1% by weight, N-(2-hydroxyethyl)cocamide, in an amount up to 5% by weight, and hexamethylenetetramine, in an amount up to 0.5% by weight.
Claim 2
Dependent Claim
169 words
A solid transparent, gelled antiperspirant composition consisting essentially of: (a) 1 to 80% by weight of at least one reactive solvent selected from the group consisting of water and lower primary mono- and dihydric alcohols; (b) 0 to 75% by weight of a C 3 to C 6 secondary aliphatic monohydric or dihydric alcohol or mixture thereof; (c) 1 to 10% by weight of dibenzyl monosorbitol acetal; (d) 0 to 25% by weight of a volatile cyclic dimethylsiloxane liquid; (e) 5 to 25% by weight of an acidic antiperspirant-active metal salt; (f) 0 to 2.5% by weight of a C 12 to C 20 fatty acid; and (g) 1 to 85% by weight of a gel stabilizer; said gel stabilizer comprising N-(2-hydroxyethyl)acetamide, alone, or combined with one or more of magnesium sulfate, in an amount up to 1% by weight, zinc acetate, in an amount up to 1% by weight, N-(2-hydroxyethyl)cocamide, in an amount up to 5% by weight, and hexamethylenetetramine, in an amount up to 0.5% by weight.
Claim 3
Dependent Claim
22 words
A composition according to claim 1 wherein (a) is ethanol and (b) is 1,3-butylene glycol or 2,4-dihydroxy-5-methyl pentane, or a mixture thereof.
Claim 4
Dependent Claim
22 words
A composition according to claim 1 wherein the acidic antiperspirant-active metal salt is aluminum chlorohex.propylene glycol complex or aluminum/zirconium chlorohydrate.propylene glycol complex.
Claim 5
Dependent Claim
14 words
A compositon according to claims 1, 2, or 3 wherein said stabilizer is N-(2-hydroxyethyl)acetamide.
Claim 6
Dependent Claim
81 words
A solid, transparent gelled antiperspirant composition comprising: (a) 40 to 65% by weight ethanol; (b) 10 to 30% by weight of 1,3-butylene glycol or 2,4-dihydroxy-5-methyl pentane or a mixture thereof; (c) 2 to 10% by weight of dibenzyl monosorbitol acetal; (d) 5 to 20% by weight of a cyclic dimethylsiloxane liquid; (e) 10 to 15% by weight of an acidic antiperspirant-active metal salt; (f) 0.2 to 1% by weight of stearic acid; and (g) 2 to 10% by weight of N-(2-hydroxyethyl)acetamide.
Claim 7
Dependent Claim
81 words
A solid, transparent gelled antiperspirant composition comprising: (a) 40 to 65% by weight ethanol; (b) 10 to 30% by weight of 1,3-butylene glycol or 2,4-dihydroxy-5-methyl pentane or a mixture thereof; (c) 2 to 10% by weight of dibenzyl monosorbitol acetal; (d) 5 to 20% by weight of a cyclic dimethylsiloxane liquid; (e) 10 to 15% by weight of an acidic antiperspirant-active metal salt; (f) 0.2 to 1% by weight of stearic acid; and (g) 2 to 10% by weight of N-(2-hydroxyethyl)acetamide.
Claim 8
Independent Claim
90 words
A method for preventing the deterioration of a solid, gelled antiperspirant stick, consisting of an alcoholic solution of an acid antiperspirant-active metal salt and dibenzyl monosorbitol acetal, which comprises incorporating therein 1 to 85% by weight of a gel stabilizer consisting of N-(2-hydroxyethyl)acetamide, alone, or combined with one or more of magnesium sulfate, in an amount up to 1% by weight, zinc acetate, in an amount up to 1% by weight N-(2-hydroxyethyl)cocamide, in an amount up to 5% by weight, and hexamethylenetetramine, in an amount up to 0.5% by weight.
Claim 9
Independent Claim
90 words
A method for preventing the deterioration of a solid, gelled antiperspirant stick, consisting of an alcoholic solution of an acid antiperspirant-active metal salt and dibenzyl monosorbitol acetal, which comprises incorporating therein 1 to 85% by weight of a gel stabilizer consisting of N-(2-hydroxyethyl)acetamide, alone, or combined with one or more of magnesium sulfate, in an amount up to 1% by weight, zinc acetate, in an amount up to 1% by weight N-(2-hydroxyethyl)cocamide, in an amount up to 5% by weight, and hexamethylenetetramine, in an amount up to 0.5% by weight.
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) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |