Antimicrobial cleansing compositions containing 2-pyrrolidone-5-carboxylic acid

US6436885B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Kimberly Ann Biedermann · Cincinnati, US
• Jeffrey Michael Morgan · Springboro, US
• Karl Shiqing Wei · Mason, US
• Mark Richard Sine · Cincinnati, US
• Cheyne Thomas · Highland Heights, US
• David Edmund Tarantino · Cockeysville, US
• Christopher Irwin · Cincinnati, US
• Christopher Dean Putman · Sharonville, US
• Peter William Beerse · Maineville, US

Key dates

• Filing date: Dec 15, 2000
• Grant date: Aug 20, 2002
• Expiry date: Dec 15, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/79
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Disclosed are antimicrobial cleansing compositions that have a pH of from about 2.0 to about 5.5 and comprise an antimicrobial agent, an amphoteric sulfactant, and 2-pyrrolidone-5 carboxylic acid as a proton donating agent. Also disclosed are corresponding articles of manufacture and methods of cleansing the skin using the described compositions. The compositions are mild to the skin and provide improved antimicrobial benefits to the skin.