Patent · US Expired

Using without emulsions as thickeners in cosmetic and pharmaceutical formulations

US6197283A · kind A · utility

0Cited by

2References

17Claims

0Family size

Assignee

BASF SE

Inventors

Kristin Tiefensee · Bad Dürkheim, DE
Volker Schehlmann · Schifferstadt, DE
Martin Rubenacker · Altrip, DE

Key dates

Filing date	Apr 4, 2000
Grant date	Mar 6, 2001
Priority date	—
Expiry date	Apr 4, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2300/14
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

W/O emulsions comprising dispersed therein crosslinked, water-swellable polymers consisting of PA1 a) 35-100% by weight of ionic monomers, PA1 b) 0-65% by weight of nonionic monomers, PA1 c) 0.3-1 mol-%, based on a) and b), of at least one at least bifunctional monomer, where the oil phase consists of one or more fatty acid esters, are used as thickeners in cosmetic or pharmaceutical formulations.

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