Cosmetic or dermatological gels based on microemulsions

US6607733B1 · kind B1 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Khiet Hien Diec · Hamburg, DE
• Heinrich Gersbarlag · Kummerfeld, DE
• Manfred Klier · Reinbek, DE
• Jörg Schreiber · Hamburg, DE
• Florian Wolf · Hamburg, DE

Key dates

• Filing date: Jan 20, 1998
• Grant date: Aug 19, 2003
• Expiry date: Jan 20, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q15/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Microemulsion gels based on microemulsions of the oil-in-water type in which the droplets of the discontinuous oily phase are joined to one another by one or more crosslinking substances, the molecules of which are distinguished by at least one hydrophilic region, which has an extension which is capable of bridging the customary distance between the microemulsion droplets, and by at least one hydrophobic region, which is capable of entering into a hydrophobic interaction with the microemulsion droplets.