Azo compound or salt thereof, and dye-based polarizing film and dye-based polarizing plate containing same

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United States of America

PATENT NO 12098287
SERIAL NO

17414571

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Importance

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Abstract

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An azo compound represented by the following formula (1) or a salt thereof, Wherein

    A1 represents a naphthyl group which may have a substituent;A2, A3, and A4 each independently represent a phenyl group which may have a substituent or a naphthyl group which may have a substituent;R1 represents a hydrogen atom, a hydroxy group, a C1-4 alkoxy group, or a substituted or unsubstituted amino group;m represents an integer of 0 to 5;M represents a hydrogen atom or ion, a metal ion, or an ammonium ion;n represents 1 or 2;k represents 0 or 1; andeach hydrogen atom on ring a and ring b may be substituted with the substituent R1 or substituent SO3M.

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Patent Owner(s)

Patent OwnerAddress
NIPPON KAYAKU KABUSHIKI KAISHATOKYO JAPAN TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hattori, Yu Tokyo, JP 6 8
Mochizuki, Noriaki Tokyo, JP 17 51
Morita, Ryoutarou Tokyo, JP 17 76

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