Patent · US Expired

Acrylyl and methacrylyl ureas containing quaternary groups, process for their preparation and their use in the preparation of polymers

US4281186A · kind A · utility

0Cited by

6References

9Claims

0Family size

Assignee

Chemische Fabrik Stockhausen & Cie · DE

Inventors

Erich Kuster · Krefeld, DE
Kurt Dahmen · Rheydt, DE
Eduard Barthell · Krefeld, DE

Key dates

Filing date	Dec 18, 1979
Grant date	Jul 28, 1981
Priority date	—
Expiry date	Dec 18, 1999

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H17/455
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to acrylyl or methacrylyl ureas containing novel quaternary groups of the formula ##STR1## wherein X is hydrogen or a methyl group, PA1 R is a lower alkyl radical having from 1 to 4 carbon atoms, PA1 m is 0 or 1, PA1 n is an integer between 1 and 4, and PA1 Z is a salt-forming anion. The compounds are prepared from the corresponding halogen-substituted ureas by reaction with trialkylamines, preferably in a solvent. Because of their double bond, they can be polymerized to homopolymers and copolymers which are suited for use as flocculating, precipitating, dewatering and retention aids.

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