Patent · US Expired

Water-soluble polymers carrying quaternary ammonium groups, their preparation and use

US4379890A · kind A · utility

8Cited by

5References

12Claims

0Family size

Assignee

Chemische Werke Huels Aktiengesellschaft · US

Inventors

Alfred Konietzny · Marl, DE
Wilfried Bartz · Marl, DE

Key dates

Filing date	Jul 9, 1981
Grant date	Apr 12, 1983
Priority date	—
Expiry date	Jul 9, 2001

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L79/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A water-soluble polymer having quaternary ammonium groups, is prepared by reacting PA1 (a) a low molecular weight alkylating agent with PA1 (b) a corresponding polymer carrying tertiary, quaternizable amino groups.

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