Polyvinyl sulfonic acid, production method thereof, and use thereof

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United States of America Patent

PATENT NO 9321863
APP PUB NO 20140091263A1
SERIAL NO

14113604

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Abstract

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The present invention relates to polyvinyl sulfonic acid comprising a vinyl sulfonic acid unit represented by a specific general formula (1), wherein the molar amount of sulfonic acid groups derived from vinyl sulfonic acid monomers with respect to the molar amount of total monomer units is 50.0 to 98.0 mol %, and the polyvinyl sulfonic acid has an absorbance of 0.1 or greater (aqueous solution: 0.2 mass %, cell length: 10 mm) in a wavelength range of 255 to 800 nm.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF YAMANASHIKOFU-SHI YAMANASHI 400-8510
ASAHI KASEI FINECHEM CO LTD3-23 NAKANOSHIMA 3-CHOME KITA-KU OSAKA-SHI OSAKA 530-8205

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akikaze, Hiroshi Tokyo, JP 3 5
Higashi, Hidenobu Tokyo, JP 1 1
Okuzaki, Hidenori Kofu, JP 12 73

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