US4719103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of water-in-oil emulsion antiperspirants
Assignee: Procter and Gamble Co
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Filing: 1985-12-23
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Granted: 1988-01-12
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Expires: 2005-12-23
Abstract
Abstract Method for making an antiperspirant composition of the water-in-oil emulsion type having improved application properties and aesthetic appeal which comprises emulsifying the aqueous phase in the oil phase in the presence of from 1 to 3% by weight of a non-ionic surfactant having a resultant HLB value in the range of 6 to 9.
Inventors
- 👤 Helga Krevald
- 👤 Joseph C. Hourihan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:44
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/02; A61K8/0216; A61K8/0229; A61K8/04; A61K8/06; A61K8/064; A61K8/34; A61K8/342; A61K8/345; A61K8/58; A61K8/585; A61Q; A61Q15/00; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
In an antiperspirant stick composition of the water-in-oil emulsion type consisting essentially of, (a) 10 to 70 parts by weight of an aqueous solution of an astringent compound as a discontinuous phase dispersed in a solid matrix consisting essentially of, (b) 0.1 to 35 parts be weight of a volatile cyclic dimethylsiloxane liquid, (c) 10 to 30 parts by weight of at least one solid alkanol containing at least 12 carbon atoms, (d) 1 to 5 parts by weight of a C 4 to C 8 alkanediol, (e) wherein the improvement comprises 0.5 to 5 parts by weight of at lease one C 12 to C 20 fatty acid ester of a polyglycerol, said ester having a resultant HLB value of 6 to 9 to improve the application aesthetics; the total of (a) through (e) being 100 parts by weight.
Claim 2
Dependent Claim
140 words
In an antiperspirant stick composition of the water-in-oil emulsion type consisting essentially of, (a) 10 to 70 parts by weight of an aqueous solution of an astringent compound as a discontinuous phase dispersed in a solid matrix consisting essentially of, (b) 0.1 to 35 parts be weight of a volatile cyclic dimethylsiloxane liquid, (c) 10 to 30 parts by weight of at least one solid alkanol containing at least 12 carbon atoms, (d) 1 to 5 parts by weight of a C 4 to C 8 alkanediol, (e) wherein the improvement comprises 0.5 to 5 parts by weight of at lease one C 12 to C 20 fatty acid ester of a polyglycerol, said ester having a resultant HLB value of 6 to 9 to improve the application aesthetics; the total of (a) through (e) being 100 parts by weight.
Claim 3
Dependent Claim
17 words
A composition according to claim 1 wherein said hydrophobic phase comprises a volatile cyclic polydimethyl siloxane liquid.
Claim 4
Dependent Claim
21 words
A composition according to claim 1 wherein said hydrophobic phase is a waxy matrix comprising a volatile cyclic polydimethyl siloxane liquid.
Claim 5
Dependent Claim
15 words
A composition according to claim 3 wherein waxy matrix additonally comprises a solid fatty alkanol.
Claim 6
Dependent Claim
32 words
A composition according to claims 1 to 4 wherein said emulsifying agent is a C 12 to C 20 saturated ester of polyglycerol containing from about 2 to 10 repeating glycerol units.
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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |