Water-soluble cationic copolymers and their use as flocculants

Details Water-soluble cationic copolymers and their use as flocculants Water-soluble cationic copolymers and their use as flocculants

1996-12-16

1998-02-24

Schofer, Joseph L.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

526263, 526291, 5263071, B03D 300, C08F 2608, C08F 2054, B01D 2101

Patent

active

057208883

ABSTRACT:
A method of flocculating coagulated and/or finely divided suspended matter in aqueous systems comprising adding to the system from 0.005 to 1 weight percent based on the dry weight of the coagulated and/or finely suspended matter of at least one water soluble cationic polymer selected from a water soluble cationic copolymer (I) composed of the polymerization reaction of an N-vinylamide with at least one cationic quaternary amine monomer.

REFERENCES:
patent: 4421602 (1983-12-01), Brunnmueller et al.
patent: 4749444 (1988-06-01), Lorz et al.
patent: 4774022 (1988-09-01), Sumi et al.
patent: 4774285 (1988-09-01), Pfohl et al.
patent: 4808683 (1989-02-01), Itagaki et al.
patent: 4880497 (1989-11-01), Pfohl et al.
patent: 4940514 (1990-07-01), Stange et al.
patent: 4957977 (1990-09-01), Itagaki et al.
patent: 4978427 (1990-12-01), Pfohl et al.
patent: 5037927 (1991-08-01), Itagaki et al.
patent: 5064909 (1991-11-01), Itagaki et al.
patent: 5098521 (1992-03-01), Freudenberg et al.
patent: 5145559 (1992-09-01), Auhorn et al.
patent: 5167766 (1992-12-01), Honig et al.
patent: 5225088 (1993-07-01), Moench et al.
patent: 5262008 (1993-11-01), Moench et al.
1046 TMOG 2 "Official Gazette" Sep. 4, 1984.
"Polyvinylamine--A New Class Of Polymers For Paper Production With A Range Of Environment-Friendly Characteristics" by F. Linhart and W. Auhurn, in Das Papier, No. 10A, 1992, pp. V38-V45. (Translation Of A German Article).
Hawley's Condensed Chemical Dictionary, Feb. 12, 1991, p. 528.
1046 TMOG 2 "Official Gazette" Sep. 4, 1984.
PCT Notification of transmittal of the International Search Report for PCT/US96/05172 dated Sep. 11, 1996.
PCT International Search Report with Annex for PCT/US96/05172 dated Sep. 11, 1996.

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