Modified polyvinyl alcohol and water-soluble film containing same

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United States of America Patent

PATENT NO 9908957
SERIAL NO

15108174

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Abstract

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Modified polyvinyl alcohol contains a monomer unit having a carboxyl group, wherein the modified polyvinyl alcohol has a degree of saponification of from 50 to 99.99 mol % and a viscosity-average degree of polymerization of from 200 to 5000 and satisfies formulae (1) to (3) below. The modified polyvinyl alcohol of the present invention thus obtained is particularly excellent in dispersibility in water.

description='In-line Formulae' end='lead'0.8≦(MwUV/MwRI)≦1.2  (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'2≦(MwUV/MnUV)≦8  (2)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'0.01≦A280≦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
Kato, Masaki Kurashiki, JP 404 3629
Mori, Yoko Osaka, JP 12 62

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