Personal care applications of emulsions containing elastomeric silanes and siloxanes with nitrogen atoms

US8071079B2 · kind B2 · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Julie Sue DeCaire · Auburn, US
• Bethany K. Johnson · Midland, US
• Michael Richard Lafore · Freeland, US
• Zuchen Lin · Midland, US

Key dates

• Filing date: Apr 15, 2004
• Grant date: Dec 6, 2011
• Expiry date: Jul 8, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/5426
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Oil-in-water (O/W) and water-in-oil (W/O) emulsions and microemulsions containing elastomeric silanes or siloxanes preferably having quaternary ammonium groups are generally made by reacting organic quaternary ammonium compounds having epoxide groups or halohydrin groups, with silanes or siloxanes having amino groups. The reaction is carried out in an aqueous polar phase containing a crosslinking agent and surfactant. The emulsions and microemulsions are especially useful for treating hair, skin, or the underarm.