Dispersing agent for suspension polymerization of vinyl compound

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United States of America Patent

PATENT NO 9914791
SERIAL NO

15116748

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Abstract

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There is provided a dispersing agent for suspension polymerization of a vinyl compound comprising a polyvinyl alcohol with a saponification degree of 65 to 90 mol % which satisfies Formulas (1) to (3). It allows for reducing the amount of coarse particles during polymerization and can thus provide a vinyl polymer with a sharp particle size distribution and higher plasticizer absorbability.

description='In-line Formulae' end='lead'0.4≦(MwUV/MwRI)≦0.95  (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'3≦(MwUV/MnUV)≦12  (2)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'0.1≦A220≦0.8  (3)description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
KURARAY CO LTDOKAYAMA COUNTY KURASHIKI JAPAN 1621 TIMES KURASHIKI OKAYAMA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujioka, Shunsuke Kurashiki, JP 1 0
Kumaki, Yosuke Kurashiki, JP 18 38
Kusudou, Takeshi Kurashiki, JP 34 178

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