US4264586A
Expired / Lapsed
US
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Antiperspirant emulsion
Assignee: CPPD Inc A CORP OF
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Filing: 1978-05-30
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Granted: 1981-04-28
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Expires: 1998-05-30
Abstract
Abstract An antiperspirant liquid composition in the form of an emulsion comprises a volatile polydimethylsiloxane, a wax, an antiperspirant agent, an emulsifier and water. The wax is first dissolved in the polydimethylsiloxane and then emulsified with the remaining ingredients. The composition can be sprayed on the skin yet is thick enough not to form runs or dribbles on the skin under the influence of gravity.
Inventors
- 👤 Martin Callingham
- 👤 Philomena Finnerty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/18; A61K8/19; A61K8/26; A61K8/30; A61K8/33; A61K8/39; A61K8/49; A61K8/4993; A61K8/58; A61K8/585; A61Q; A61Q15/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
87 words
A spray antiperspirant composition in the form of an emulsion, consisting essentially of by weight of the composition: (i) from 2% to about 60% of a volatile polydimethylsiloxane having a viscosity of from 0.5 to 6 centistokes; (ii) from 0.1% to about 30% wax; (iii) from 0.2% to about 40% of an antiperspirant agent; (iv) from 0.5% to about 10% of an emulsifier; and (v) from about 40% to about 80% water; wherein the weight ratio of the volatile polydimethylsiloxane to wax is from 1:1 to 60:1.
Claim 2
Dependent Claim
87 words
A spray antiperspirant composition in the form of an emulsion, consisting essentially of by weight of the composition: (i) from 2% to about 60% of a volatile polydimethylsiloxane having a viscosity of from 0.5 to 6 centistokes; (ii) from 0.1% to about 30% wax; (iii) from 0.2% to about 40% of an antiperspirant agent; (iv) from 0.5% to about 10% of an emulsifier; and (v) from about 40% to about 80% water; wherein the weight ratio of the volatile polydimethylsiloxane to wax is from 1:1 to 60:1.
Claim 3
Dependent Claim
23 words
A composition according to claim 1, wherein the volatile polydimethylsiloxane is a linear polydimethylsiloxane having the formula: ##STR4## where n is an integer.
Claim 4
Dependent Claim
18 words
A composition according to claim 2, wherein the integer n has a value of from 1 to 5.
Claim 5
Dependent Claim
23 words
A composition according to claim 1, wherein the volatile polydimethylsiloxane is a cyclic polydimethylsiloxane having the formula: ##STR5## where n is an integer.
Claim 6
Dependent Claim
18 words
A composition according to claim 4, wherein the integer n has a value of from 1 to 4.
Claim 7
Dependent Claim
32 words
A composition according to claim 1, wherein the wax is a C 10 -C 22 alkyl fatty alcohol having an average of from 0 to 50 ethylene oxide residues in the molecule.
Claim 8
Dependent Claim
33 words
A composition according to claim 1, wherein the wax is a C 10 -C 22 alkyl ethoxylated fatty acid containing an average of from 1 to 50 ethylene oxide residues in the molecule.
Claim 9
Dependent Claim
26 words
A composition according to claim 1, wherein the wax is a triglyceride in which the esterifying acid is a C 10 -C 22 alkyl fatty acid.
Claim 10
Dependent Claim
15 words
A composition according to claim 1, wherein the antiperspirant agent comprises an astringent metal salt.
Claim 11
Dependent Claim
14 words
A composition according to claim 9, wherein the astringent metal salt is aluminium chlorhydrate.
Claim 12
Dependent Claim
16 words
A composition according to claim 1, wherein the antiperspirant agent comprises a non-astringent moisture-absorbent polymeric material.
Claim 13
Dependent Claim
18 words
A composition according to claim 1, wherein the emulsifier has an HLB value of from 6.5 to 8.6.
Claim 14
Dependent Claim
18 words
A composition according to claim 1, wherein the emulsifier has an HLB value of from 10.5 to 13.
Claim 15
Dependent Claim
44 words
A process for preparing the antiperspirant liquid composition according to claim 1, which comprises forming a solution of the wax in the volatile polydimethylsiloxane and emulsifying the solution with water and the emulsion together with other ingredients of the composition, to form an emulsion.
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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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |