Patent · US Expired

Emulsifier-free finely disperse systems of the water-in-oil type

US6592883B1 · kind B1 · utility

8Cited by

2References

17Claims

0Family size

Assignee

BEIERSDORF AG · DE

Inventors

Heinrich Gers-Barlag · Kummerfeld, DE
Anja Müller · Bad Oldesloe, DE
Birgit Groteluschen · Wildeshausen, DE

Key dates

Filing date	Aug 17, 2000
Grant date	Jul 15, 2003
Priority date	—
Expiry date	Aug 17, 2020

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q17/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Cosmetic or dermatological preparations which are finely disperse systems of the water-in-oil type, comprising1. an oil phase,2. a water phase,3. a combination ofa) at least one modified phyllosilicateb) and boron nitride, where both the modified phyllosilicate or phyllosilicates and the boron nitride exhibit both hydrophilic and lipophilic properties, i.e. have amphiphilic character and position themselves at the water/oil interface and4. at most 0.5% by weight of one or more emulsifiers andoptionally comprising further cosmetic or pharmaceutical auxiliaries, additives and/or active ingredients.

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