Anhydrous antiperspirant stick compositions

US4137306A · kind A · utility

Assignee

• Armour Pharmaceutical · US

Inventors

• Andrew M. Rubino · New Providence, US
• John J. Margres, Jr. · Old Bridge, US

Key dates

• Filing date: Jun 5, 1973
• Grant date: Jan 30, 1979
• Expiry date: Jun 5, 1993

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S424/05
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Improved antiperspirant stick compositions are provided which comprise a substantially anhydrous, homogeneous mixture of an alcohol soluble astringent basic aluminum compound as the active ingredient in a solid or semi-solid system including an alkylene polyhydric alcohol, a normally solid higher fatty acid amide of an alkylolamine in which the fatty acid radical contains at least 12 carbon atoms and the alkylol groups of the alkylolamine contain from 2 to 3 carbon atoms, and a non-toxic dermatologically acceptable non-aqueous solvent, such as ethanol, for the astringent basic aluminum compound. The mixture provides a highly esthestic, stable and quite effective antiperspirant in stick form suitable for application to the human axilla.