Patent · US Expired

Cosmetic or dermatological preparations comprising hydrophobicized inorganic pigments for preserving the urocaninic acid state of the skin

US5658556A · kind A · utility

5Cited by

2References

8Claims

0Family size

Assignee

BEIERSDORF AG · DE

Inventors

Heinrich Gers-Barlag · Kummerfeld, DE
Sabine Schulz · Berlin, DE
Beate Uhlmann · Hamburg, DE
Ulrich Hintze · Hamburg, DE
Robert Schmucker · Hamburg, DE

Key dates

Filing date	Aug 15, 1995
Grant date	Aug 19, 1997
Priority date	—
Expiry date	Aug 15, 2015

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P17/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Use of one or more hydrophobicized, pharmaceutically or cosmetically acceptable inorganic pigments in cosmetic or dermatological preparations for preventing PA1 leaching out or washing off of the skin's cis- or trans-urocaninic acid from the human skin, caused by the action of water, or PA1 leaching out or washing off of cis- or trans-urocaninic acid which has been applied artificially to the skin, from the human skin caused by the action of water.

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