Powder stick composition for topical application

US4414200A · kind A · utility

Assignee

• Kolmar Laboratories, Inc. · US

Inventors

• John H. Murphy · Wilkinsburg, US
• Jon D. Packer · Stamford, US
• Dennis R. Brown · Easton, US

Key dates

• Filing date: Mar 17, 1980
• Grant date: Nov 8, 1983
• Expiry date: Mar 17, 2000

Classification

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

Abstract

A powder stick composition for topical application, and particularly a powder stick containing an anti-perspirant as an active ingredient. The stick is produced by incorporating an active ingredient, a finely divided inert filler, and a fatty alcohol with a siloxane at an elevated temperature to form a slurry. The slurry is then molded into stick form at atmospheric pressure, and the molded stick is dried to evaporate a major portion of the siloxane. The resulting stick is firm, has a uniform distribution of the active ingredient throughout the cross section and has excellent pay-off characteristics.