PREPARATIONS OF THE W/O EMULSION TYPE WITH AN INCREASED WATER CONTENT, ADDITIONALLY COMPRISING ONE OR MORE ALKYLMETHICONE COPOLYOLS AND/OR ALKYLDIMETHICONE COPOLYOLS, AND, IF DESIRED, CATIONIC POLYMERS

US6383503B1 · kind B1 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Andreas Bleckmann · Ahrensburg, DE
• Rainer Kropke · Schenefeld, DE
• Gunther Schneider · Hamburg, DE
• Stephanie Von Der Fecht · Wedel, DE

Key dates

• Filing date: May 23, 2000
• Grant date: May 7, 2002
• Expiry date: May 23, 2020

Classification

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

Abstract

Water-in-oil emulsions(a) with a content of water and optionally water-soluble substances totalling at least 80% by weight, based on the total weight of the preparations, and with a content of lipids, emulsifiers and lipophilic constituents totalling at most 20% by weight, based in each case on the total weight of the preparations,(b) comprising at least one surface-active substance chosen from the group of alkylmethicone copolyols and/or alkyldimethicone copolyols,(c) comprising one or more lipid components which include the lipid phase of the emulsion,(d) where the weight ratio of (b) to (c) is chosen from the range 0.05 to 0.30, preferably 0.06 to 0.14,(e) if the water content is between 75 and 80% by weight, comprising one or more cationic polymers(f) if the water content is more than 80% by weight, not comprising a cationic polymer.