METHOD FOR PRODUCING HIGH MOLECULAR WEIGHT WATER-SOLUBLE ZWITTERIONIC POLYMERS IN PAPERMAKING PROCESS

PROBLEM TO BE SOLVED: To provide a new agent for improving yield and drainage performance in papermaking machine and hard to be interfered from high concentrations of salt, polyanions or anionic colloids, and to provide a papermaking method using the agent. SOLUTION: A high molecular weight zwitteri...

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Hauptverfasser:	BRAMMER LARRY E JR, MURRAY PATRICK G, DUNHAM ANDREW J, CARTER PHILLIP W
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON IMPREGNATING OR COATING OF PAPER MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY METHODS OF PRODUCING PAPER THEREON ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PAPER-MAKING MACHINES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS SEPARATION TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a new agent for improving yield and drainage performance in papermaking machine and hard to be interfered from high concentrations of salt, polyanions or anionic colloids, and to provide a papermaking method using the agent. SOLUTION: A high molecular weight zwitterionic inner-salt copolymers are produced by copolimerizing one or more nonionic monomers and various specific zwitterionic monomers, and is used as an agent for improving yield or an agent for improving drainage. COPYRIGHT: (C)2008,JPO&INPIT