CONTROLLABLE FILLER PREFLOCULATION USING A DUAL POLYMER SYSTEM

A METHOD OF PREPARING A STABLE DISPERSION OF FLOCCULATED FILLER PARTICLES FOR USE IN PAPERMAKING PROCESSES COMPRISES SEQUENTIAL ADDITION OF HIGH AND LOW MOLECULAR WEIGHT FLOCCULATING AGENTS TO AN AQUEOUS DISPERSION OF FILLER PARTICLES FOLLOWED BY SHEARING OF THE RESULTANT FILLER FLOCS TO THE DESIRED...

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Hauptverfasser: GRAY, ROSS T, CHENG, WEIGUO
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creator GRAY, ROSS T
CHENG, WEIGUO
description A METHOD OF PREPARING A STABLE DISPERSION OF FLOCCULATED FILLER PARTICLES FOR USE IN PAPERMAKING PROCESSES COMPRISES SEQUENTIAL ADDITION OF HIGH AND LOW MOLECULAR WEIGHT FLOCCULATING AGENTS TO AN AQUEOUS DISPERSION OF FILLER PARTICLES FOLLOWED BY SHEARING OF THE RESULTANT FILLER FLOCS TO THE DESIRED PARTICLE SIZE RESULTING IN SHEAR RESISTANT FILLER FLOCS WITH A DEFINED AND CONTROLLABLE SIZE DISTRIBUTION. FIG. 1
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subjects ADHESIVES
CHEMISTRY
DYES
IMPREGNATING OR COATING OF PAPER
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
POLISHES
PREPARATION OF CARBON BLACK
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
title CONTROLLABLE FILLER PREFLOCULATION USING A DUAL POLYMER SYSTEM
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