JPS5662873A - Dichromatic dye for liquid crystal consisting of anthraquinone compound - Google Patents

Dichromatic dye for liquid crystal consisting of anthraquinone compound

Info

Publication number
JPS5662873A
JPS5662873A JP14027079A JP14027079A JPS5662873A JP S5662873 A JPS5662873 A JP S5662873A JP 14027079 A JP14027079 A JP 14027079A JP 14027079 A JP14027079 A JP 14027079A JP S5662873 A JPS5662873 A JP S5662873A
Authority
JP
Japan
Prior art keywords
anthraquinone compound
formula
liquid crystal
anthraquinone
dichromatic dye
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14027079A
Other languages
Japanese (ja)
Other versions
JPS6126834B2 (en
Inventor
Shigeo Yasui
Masanobu Wada
Tatsuo Uchida
Yoshiko Kobayashi
Masashi Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON KANKOU SHIKISO KENKYUSH
Nippon Kanko Shikiso Kenkyusho KK
Original Assignee
NIPPON KANKOU SHIKISO KENKYUSH
Nippon Kanko Shikiso Kenkyusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NIPPON KANKOU SHIKISO KENKYUSH, Nippon Kanko Shikiso Kenkyusho KK filed Critical NIPPON KANKOU SHIKISO KENKYUSH
Priority to JP14027079A priority Critical patent/JPS5662873A/en
Publication of JPS5662873A publication Critical patent/JPS5662873A/en
Publication of JPS6126834B2 publication Critical patent/JPS6126834B2/ja
Granted legal-status Critical Current

Links

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  • Liquid Crystal (AREA)

Abstract

PURPOSE: The titled dye suitable for a guest-host type liquid crystal color display material in an instrument of an automobile, capable of assuming a good display color and dichroism, having improved durability, and consisting of an anthraquinone compound having a specific structural formula.
CONSTITUTION: A dichromatic dye for liquid crystal consisting of an anthraquinone compound expressed by formula I [ϕ is substituted or unsubstituted alkyl, cycloalkyl, aralkyl or formula II (R is H, alkyl, alkyloxy, alkylsulfonyl, bisarylcarbonyloxy, etc.)]. The anthraquinone compound is obtained by condensing a dicarboxyimide derivative of anthraquinone or a dicarboxylic acid anhydride with an amine of the formula ϕ-NH2 in the absence or presence of an inert solvent, e.g. nitrobenzene, under heating.
EFFECT: A bright blue color close to that of cyan, and useful as a base material for preparing various kinds of colors by mixing two or more types of dyes.
COPYRIGHT: (C)1981,JPO&Japio
JP14027079A 1979-10-29 1979-10-29 Dichromatic dye for liquid crystal consisting of anthraquinone compound Granted JPS5662873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14027079A JPS5662873A (en) 1979-10-29 1979-10-29 Dichromatic dye for liquid crystal consisting of anthraquinone compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14027079A JPS5662873A (en) 1979-10-29 1979-10-29 Dichromatic dye for liquid crystal consisting of anthraquinone compound

Publications (2)

Publication Number Publication Date
JPS5662873A true JPS5662873A (en) 1981-05-29
JPS6126834B2 JPS6126834B2 (en) 1986-06-23

Family

ID=15264861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14027079A Granted JPS5662873A (en) 1979-10-29 1979-10-29 Dichromatic dye for liquid crystal consisting of anthraquinone compound

Country Status (1)

Country Link
JP (1) JPS5662873A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5796075A (en) * 1980-10-22 1982-06-15 Gen Electric Bichromophoric liquid crystal composition containing anthraquinone dye
JPS57117580A (en) * 1981-01-12 1982-07-22 Sumitomo Chem Co Ltd Liquid crystal display element
US4824882A (en) * 1984-10-05 1989-04-25 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5286418A (en) * 1984-10-05 1994-02-15 Mitsui Toatsu Chemicals, Incorporated Polarizing film

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5796075A (en) * 1980-10-22 1982-06-15 Gen Electric Bichromophoric liquid crystal composition containing anthraquinone dye
JPS57117580A (en) * 1981-01-12 1982-07-22 Sumitomo Chem Co Ltd Liquid crystal display element
US4824882A (en) * 1984-10-05 1989-04-25 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5059356A (en) * 1984-10-05 1991-10-22 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5286418A (en) * 1984-10-05 1994-02-15 Mitsui Toatsu Chemicals, Incorporated Polarizing film
US5354513A (en) * 1984-10-05 1994-10-11 Mitsui Toatsu Chemicals, Incorporated Polarizing film

Also Published As

Publication number Publication date
JPS6126834B2 (en) 1986-06-23

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