PROCESS FOR MAKING CONTROLLED, UNIFORM-SIZED PARTICLES IN THE 1 TO 50 MICROMETER RANGE

Uniformly sized polymer particles 0-150.mu.m diameter are made by gradual ly combining a water-insoluble monomer mixture with an aqueous dispersion of emulsion-polymerized polymer particles in the presence of a dispersion stabilizer and an oil-soluble, free-radical polymerization initiator. Uniforml...

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Bibliographic Details
Main Authors FRAZZA, MARK S, KOWALSKI, ALEXANDER, VOGEL, MARTIN, RANEY, ROBERT R, HO, KIM S
Format Patent
LanguageEnglish
French
Published 23.09.1991
Edition5
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING-UP
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Summary:Uniformly sized polymer particles 0-150.mu.m diameter are made by gradual ly combining a water-insoluble monomer mixture with an aqueous dispersion of emulsion-polymerized polymer particles in the presence of a dispersion stabilizer and an oil-soluble, free-radical polymerization initiator. Uniformly sized polymer particles of 1-50.mu.m diameter are made by gradually combining a water-insoluble monomer mixture with an aqueous dispersion of emulsion-polymerized polymer particles in the presence of a dispersion stabilizer and an oil-soluble, free-radical polymerization initiator.
Bibliography:Application Number: CA19912038502