Patent · US Expired

Mixtures of alkylphosphoric esters and use thereof as cosmetic and pharmaceutical emulsifiers

US6541016B1 · kind B1 · utility

2Cited by

6References

6Claims

0Family size

Assignee

Clariant Corporation · DE

Inventors

Angelika Turowski-Wanke · Kelkheim, DE
Matthias Loffler · Niedernhausen, DE
Oliver Eyrisch · Essen, DE
Werner Skrypzak · Liederbach, DE

Key dates

Filing date	Feb 26, 1998
Grant date	Apr 1, 2003
Priority date	—
Expiry date	Feb 26, 2018

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q19/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

This invention relates to monoalkyl phosphoric esters, dialkyl phosphoric esters, and, in small amounts, trialkyl phosphoric esters or salts thereof, which are preferably based on &bgr;-branched fatty alcohols, particularly Guerbet alcohol, which are effective in lowering the surface tension of both polar and also nonpolar liquids, and which have high stability, even at elevated temperatures, and low sensitivity to electrolytes and acids. The invention further relates to the use of such mixtures as emulsifiers in cosmetic and pharmaceutical formulations, and to the resulting products.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.