Poly(vinyl alcohol) film and production method for polarizing film

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United States of America Patent

PATENT NO 11947144
APP PUB NO 20210041613A1
SERIAL NO

16979604

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Abstract

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The present invention relates to a polyvinyl alcohol film comprising a vinyl alcohol-based polymer, the polyvinyl alcohol film having an NMR signal intensity at 0.10 milliseconds of 78% or less of the initial intensity, when the polyvinyl alcohol film after immersing in water at 60° C. for 2 hours is measured as a measurement sample by a solid echo method using pulse NMR at 60° C.

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Patent Owner(s)

Patent OwnerAddress
SEKISUI CHEMICAL CO LTDOSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kusaka, Yasunari Osaka, JP 30 76
Nakajima, Nami Osaka, JP 15 11
Nishimura, Yohei Osaka, JP 28 248

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