Azo compound, dye-based polarizing film and polarizing plate

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United States of America Patent

PATENT NO 9244198
APP PUB NO 20130302538A1
SERIAL NO

13980184

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Abstract

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The present invention relates to an azo compound represented by the following formula (1), [wherein, A represents a phenyl group which may have a substituent, R1 to R6 each independently represent a hydrogen atom, an alkyl group having a carbon atom number of 1 to 5, an alkoxy group having a carbon atom number of 1 to 5, a sulfo group, or an alkoxy group having a sulfo group and a carbon atom number of 1 to 5, and X represents an amino group which may have a substituent, a benzoylamino group which may have a substituent, a phenylamino group which may have a substituent, a phenylazo group which may have a substituent, or a naphthotriazole group which may have a substituent] or/and a salt thereof and to a polarizing film and a polarizing plate which contain it.

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Patent Owner(s)

Patent OwnerAddress
NIPPON KAYAKU KABUSHIKI KAISHANO 1 ERDING MU 1 TAKESHI WAN CHIYODA TOKYO JAPAN TOKYO TOKYO METROPOLIS
POLATECHNO CO LTDJOETSU-SHI NIIGATA 944-0101

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higeta, Takahiro Tokyo, JP 21 140
Nishiguchi, Takuto Tokyo, JP 16 92

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