US4110428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiperspirant composition
Assignee: Lever Brothers Co
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Filing: 1976-08-12
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Granted: 1978-08-29
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Expires: 1996-08-12
Abstract
Abstract An aerosol antiperspirant composition of the type in which an antiperspirant agent such as aluminium chlorhydrate is suspended in a propellant medium, the medium containing a polyalkylene glycol for example a butoxymonoether of an ethylene oxide -- propylene oxide condensate, an ethylene oxide -- propylene oxide block copolymer or a polypropylene glycol. The effect of including a polyalkylene glycol is to substantially reduce the amount of stain which develops on clothing to which the antiperspirant becomes accidentally transferred.
Inventors
- 👤 Johannes A. Kuhn
- 👤 Randolph J. Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:01
CPC Classifications
A; A61; A61Q; A61Q15/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/26; A61K8/30; A61K8/33; A61K8/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
In an antiperspirant composition comprising a suspension of from 0.1 to 10% by weight of a finely divided aluminium chlorhydrate in a solution containing isopropyl myristate and a halogenated hydrocarbon aerosol propellant selected from the group consisting of difluorodichloromethane, fluorotrichloromethane, tetrafluorodichloroethane, trifluorotrichloroethane and mixtures thereof, the improvement which comprises replacing the isopropyl myristate with a colorless, water- and propellant-miscible compound having the general formula C.sub.4 H.sub.9 (OC.sub.n H.sub.2n).sub.x OH wherein n is 2 or 3 and x represents the number of moles of ethylene oxide and 1,2-propyleneoxide respectively such that the viscosity of the compound is from about 660 to about 3520 Saybolt Universal Seconds at 100° F, wherein the ratio of the colorless water- and propellant- miscible compound to the aluminium chlorhydrate is such that when the amount of the colorless water- and propellant- miscible compound is from about 2.5 to about 7.5% by weight, the amount of the aluminium chlorhydrate is about 3.5% by weight.
Claim 2
Dependent Claim
157 words
In an antiperspirant composition comprising a suspension of from 0.1 to 10% by weight of a finely divided aluminium chlorhydrate in a solution containing isopropyl myristate and a halogenated hydrocarbon aerosol propellant selected from the group consisting of difluorodichloromethane, fluorotrichloromethane, tetrafluorodichloroethane, trifluorotrichloroethane and mixtures thereof, the improvement which comprises replacing the isopropyl myristate with a colorless, water- and propellant-miscible compound having the general formula C.sub.4 H.sub.9 (OC.sub.n H.sub.2n).sub.x OH wherein n is 2 or 3 and x represents the number of moles of ethylene oxide and 1,2-propyleneoxide respectively such that the viscosity of the compound is from about 660 to about 3520 Saybolt Universal Seconds at 100° F, wherein the ratio of the colorless water- and propellant- miscible compound to the aluminium chlorhydrate is such that when the amount of the colorless water- and propellant- miscible compound is from about 2.5 to about 7.5% by weight, the amount of the aluminium chlorhydrate is about 3.5% by weight.
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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) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |