Dispersion assistant for suspension polymerization and method for producing vinyl-based polymer using the same

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United States of America Patent

PATENT NO 11339232
APP PUB NO 20190248931A1
SERIAL NO

16343377

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Abstract

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Provided is a dispersion assistant useful for suspension polymerization of vinyl-based compounds. The dispersion assistant comprises a polyvinyl alcohol-based polymer (A) comprising a constituent unit represented by the general formula (1) shown below at 0.1 to 10 mol % per polyvinyl alcohol monomer unit and having a saponification degree of 15 to 70 mol %.

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Patent Owner(s)

Patent OwnerAddress
JAPAN VAM & POVAL CO LTD11-1 CHIKKO SHINMACHI 3-CHO NISHI-KU SAKAI-SHI OSAKA 592-8331

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kozuka, Yoshiaki Osaka, JP 6 31
Omori, Takehiro Osaka, JP 4 8

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