JPS57205448A - Anthraquinone dye, dichruic dye for liquid crystal composed of said dye, and liquid crystal composition consisting of sald dye and nematic liquid crystal - Google Patents

Anthraquinone dye, dichruic dye for liquid crystal composed of said dye, and liquid crystal composition consisting of sald dye and nematic liquid crystal

Info

Publication number
JPS57205448A
JPS57205448A JP9132781A JP9132781A JPS57205448A JP S57205448 A JPS57205448 A JP S57205448A JP 9132781 A JP9132781 A JP 9132781A JP 9132781 A JP9132781 A JP 9132781A JP S57205448 A JPS57205448 A JP S57205448A
Authority
JP
Japan
Prior art keywords
dye
liquid crystal
anthraquinone
green
formulai
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.)
Pending
Application number
JP9132781A
Other languages
Japanese (ja)
Inventor
Shigeo Yasui
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.)
NIHON KANKOU SHIKISO KENKYUSHO
NIHON KANKOU SHIKISO KENKYUSHO KK
Nippon Kanko Shikiso Kenkyusho KK
Original Assignee
NIHON KANKOU SHIKISO KENKYUSHO
NIHON KANKOU SHIKISO KENKYUSHO KK
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 NIHON KANKOU SHIKISO KENKYUSHO, NIHON KANKOU SHIKISO KENKYUSHO KK, Nippon Kanko Shikiso Kenkyusho KK filed Critical NIHON KANKOU SHIKISO KENKYUSHO
Priority to JP9132781A priority Critical patent/JPS57205448A/en
Publication of JPS57205448A publication Critical patent/JPS57205448A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide a novel anthraquinone dye which possesses properties required as a dichronic dye and develops alone clear green to yellowish green, and to provide a liquid crystal compsn. which serves as a highly practicable green display material and makes green liquid crystal display of high display quality possible.
CONSTITUTION: An anthraquinone dye of formulaI(wherein R1, R4 are each an amino or alkylamino group with the proviso that at least one of R1, R4 is an amino group; R5, R8 are each H, hydroxy, amino; ϕ is a substd. or unsubstituted phenyl group) such as the compd. of formula II (the color of this compd. in GR- 41 is green) is provided. A dichroic dye for liquid crystals is composed of said anthraquinone dye of formulaI. A liquid crystal compsn. consists of a nematic liquid crystal and said dichroic dye for liquid crystals, which s composed of said anthraquinone dye of formulaI. They are novel and useful anthraquinone dyes and contributes to the development of liquid crystal colors in guest-host systems.
COPYRIGHT: (C)1982,JPO&Japio
JP9132781A 1981-06-12 1981-06-12 Anthraquinone dye, dichruic dye for liquid crystal composed of said dye, and liquid crystal composition consisting of sald dye and nematic liquid crystal Pending JPS57205448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9132781A JPS57205448A (en) 1981-06-12 1981-06-12 Anthraquinone dye, dichruic dye for liquid crystal composed of said dye, and liquid crystal composition consisting of sald dye and nematic liquid crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9132781A JPS57205448A (en) 1981-06-12 1981-06-12 Anthraquinone dye, dichruic dye for liquid crystal composed of said dye, and liquid crystal composition consisting of sald dye and nematic liquid crystal

Publications (1)

Publication Number Publication Date
JPS57205448A true JPS57205448A (en) 1982-12-16

Family

ID=14023351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9132781A Pending JPS57205448A (en) 1981-06-12 1981-06-12 Anthraquinone dye, dichruic dye for liquid crystal composed of said dye, and liquid crystal composition consisting of sald dye and nematic liquid crystal

Country Status (1)

Country Link
JP (1) JPS57205448A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219262A (en) * 1982-06-14 1983-12-20 Nippon Kayaku Co Ltd Anthraquinone compound
JPS6043605A (en) * 1983-08-22 1985-03-08 Nippon Kayaku Co Ltd Near infrared absorption filter
JPS615203A (en) * 1984-06-19 1986-01-11 Mitsubishi Chem Ind Ltd Infrared-ray transmitting filter
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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219262A (en) * 1982-06-14 1983-12-20 Nippon Kayaku Co Ltd Anthraquinone compound
JPS6362553B2 (en) * 1982-06-14 1988-12-02
JPS6043605A (en) * 1983-08-22 1985-03-08 Nippon Kayaku Co Ltd Near infrared absorption filter
JPH0638124B2 (en) * 1983-08-22 1994-05-18 日本化薬株式会社 Near infrared absorption filter
JPS615203A (en) * 1984-06-19 1986-01-11 Mitsubishi Chem Ind Ltd Infrared-ray transmitting filter
JPH043842B2 (en) * 1984-06-19 1992-01-24
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

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