Foaming oil-in-water emulsion based on nonionic surfactants, a fatty phase and a crosslinked cationic or anionic polymer, and its use in topical applications

US6579907B1 · kind B1 · utility

Assignee

• L'Oreal S.A. · FR

Inventors

• Laurence Sebillotte-Arnaud · Créteil, FR
• Emmanuelle Ambrosini · Paris, FR
• Pascal Arnaud · L'Haÿ-les-Roses, FR

Key dates

• Filing date: Feb 11, 2000
• Grant date: Jun 17, 2003
• Expiry date: Feb 11, 2020

Classification

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

Abstract

A forming oil-in-water emulsion in the form of a cream comprising, in an aqueous medium, at least:a) from 5 to 20% of an exclusively nonionic surfactant system comprising at least one foaming nonionic surfactant;b) from 10 to 50% of an oily phase containing at least one water-insoluble oil whose solubility parameters dD, dP and dH according to Hansen's solubility space satisfy the conditions:15.5 (J/cm3)½≦dD≦18.0 (J/cm3)½and0 (J/cm3)½≦dA≦6.5 (J/cm3)½withdA=(dP2+dH2)½c) and, as a gelling agent, at least one crosslinked homopolymer or copolymer formed from at least one cationic or anionic monomer containing ethylenic unsaturation and from a crosslinking agent containing polyethylenic unsaturation. This composition is useful in cosmetics, dermatology and hygiene as a base for cleansing products for the skin, the hair, the mucous membranes and the scalp.