Patent · US Expired

Water-soluble or water-dispersible graft copolymers based on a polyvinyllactam, their preparation and use

US6329472A · kind A · utility

33Cited by

6References

12Claims

0Family size

Assignee

BASF SE

Inventors

Son Nguyen Kim · Hemsbach, DE
Axel Sanner · Bischofswerda, DE
Peter Hossel · Schifferstadt, DE
Volker Schehlmann · Schifferstadt, DE

Key dates

Filing date	Nov 16, 1999
Grant date	Dec 11, 2001
Priority date	—
Expiry date	Nov 16, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F271/02
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Water-soluble or water-dispersible graft copolymers in which a tert-butyl acrylate and a polymerizable carboxylic acid are grafted onto a polyvinyllactam, to their preparation and to their use, especially in the form of cosmetic preparations, particularly as hair-setting compositions.

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