PROCESS FOR PRODUCING VINYLIDENE FLUORIDE POLYMER

PROBLEM TO BE SOLVED: To provide a process for producing a vinylidene fluoride polymer, which can reduce adhesion of polymers, generated when polymerizing the vinylidene fluoride polymer, to a polymerization vessel such as a polymerization tank and decrease an amount of floating substances in discha...

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Bibliographic Details
Main Authors IGARASHI TAMITO, HORIE KATSUO
Format Patent
LanguageEnglish
Published 06.03.2014
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To provide a process for producing a vinylidene fluoride polymer, which can reduce adhesion of polymers, generated when polymerizing the vinylidene fluoride polymer, to a polymerization vessel such as a polymerization tank and decrease an amount of floating substances in discharged water generated by suspension polymerization, and thus can produce the vinylidene fluoride polymer with excellent productivity.SOLUTION: There is provided a process for producing a vinylidene fluoride polymer by dispersing and suspension-polymerizing monomers containing vinylidene fluoride as a main component in an aqueous medium containing a suspension agent. The suspension polymerization is performed in a presence of at least one polybasic carboxylic acid compound selected from polybasic carboxylic acids and polybasic carboxylic acid salts.
Bibliography:Application Number: JP20120183282