Patent · US Expired

N-acyl-hydroxyamino acid esters and their use

US6039939A · kind A · utility

4Cited by

1References

3Claims

0Family size

Assignee

Haarmann & Reimer Corporation · DE

Inventors

Jakob Ley · Holzminden, DE
Roland Langner · Holzminden, DE

Key dates

Filing date	Mar 13, 1998
Grant date	Mar 21, 2000
Priority date	—
Expiry date	Mar 13, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C233/47
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

N-Acyl-hydroxyamino acid alkyl esters help to strengthen the natural barrier function of the skin against environmental influences and external irritation. They improve the suppleness and the elasticity of skin and hair, help to increase the moisture content and protect skin and hair from drying out.

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