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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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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