POLYMERS OF ACRYLYL OR METHACRYLYL UREAS CONTAINING QUATERNARY GROUPS, AND THEIR USE AS FLOCCULATION, SEDIMENTATION, DEWATERING AND RETENTION AUXILIARY AGENTS

The invention relates to acrylyl or methacrylyl ureas containing novel quaternary groups of the formula wherein X is hydrogen or a methyl group, R is a lower alkyl radical having from 1 to 4 carbon atoms, m is 0 or 1, n is an integer between 1 and 4, and Z is a salt-forming anion. The compounds are...

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Hauptverfasser: DAHMEN, KURT, BARTHELL, EDUARD, KUSTER, ERICH
Format: Patent
Sprache:eng ; ger
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Zusammenfassung:The invention relates to acrylyl or methacrylyl ureas containing novel quaternary groups of the formula wherein X is hydrogen or a methyl group, R is a lower alkyl radical having from 1 to 4 carbon atoms, m is 0 or 1, n is an integer between 1 and 4, and 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.