Patent · US Expired

Water-soluble or water-dispersible polyaspartic acid derivatives, their preparation and their use

US5925728A · kind A · utility

9Cited by

5References

10Claims

0Family size

Assignee

BASF SE

Inventors

Son Nguyen Kim · Hemsbach, DE
Axel Sanner · Bischofswerda, DE
Peter Hossel · Schifferstadt, DE
Matthias Kroner · Eisenberg, DE

Key dates

Filing date	Jul 1, 1997
Grant date	Jul 20, 1999
Priority date	—
Expiry date	Jul 1, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G73/1092
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A description is given of water-soluble or water-dispersible polyaspartic acid derivatives, their preparation and their use in cosmetology, especially in hair cosmetology.

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