GB2094825B - Liquid crystal compositions containing pleochroic anthraquinone dyes - Google Patents

Liquid crystal compositions containing pleochroic anthraquinone dyes

Info

Publication number
GB2094825B
GB2094825B GB8201113A GB8201113A GB2094825B GB 2094825 B GB2094825 B GB 2094825B GB 8201113 A GB8201113 A GB 8201113A GB 8201113 A GB8201113 A GB 8201113A GB 2094825 B GB2094825 B GB 2094825B
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
compositions containing
crystal compositions
anthraquinone dyes
containing pleochroic
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.)
Expired
Application number
GB8201113A
Other languages
English (en)
Other versions
GB2094825A (en
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.)
Mitsubishi Chemical Corp
Hitachi Ltd
Original Assignee
Hitachi Ltd
Mitsubishi Chemical Industries Ltd
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
Priority claimed from JP575081A external-priority patent/JPS57119977A/ja
Priority claimed from JP574981A external-priority patent/JPS57119976A/ja
Application filed by Hitachi Ltd, Mitsubishi Chemical Industries Ltd filed Critical Hitachi Ltd
Publication of GB2094825A publication Critical patent/GB2094825A/en
Application granted granted Critical
Publication of GB2094825B publication Critical patent/GB2094825B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/56—Mercapto-anthraquinones
    • C09B1/58—Mercapto-anthraquinones with mercapto groups substituted by aliphatic, cycloaliphatic, araliphatic or aryl radicals
    • C09B1/60—Mercapto-anthraquinones with mercapto groups substituted by aliphatic, cycloaliphatic, araliphatic or aryl radicals substituted by aliphatic, cycloaliphatic or araliphatic radicals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/60—Pleochroic dyes
    • C09K19/603—Anthroquinonic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Liquid Crystal (AREA)
GB8201113A 1981-01-17 1982-01-15 Liquid crystal compositions containing pleochroic anthraquinone dyes Expired GB2094825B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP575081A JPS57119977A (en) 1981-01-17 1981-01-17 Liquid crystal composition
JP574981A JPS57119976A (en) 1981-01-17 1981-01-17 Liquid crystal composition

Publications (2)

Publication Number Publication Date
GB2094825A GB2094825A (en) 1982-09-22
GB2094825B true GB2094825B (en) 1984-09-12

Family

ID=26339751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8201113A Expired GB2094825B (en) 1981-01-17 1982-01-15 Liquid crystal compositions containing pleochroic anthraquinone dyes

Country Status (4)

Country Link
US (1) US4434072A (cg-RX-API-DMAC7.html)
CH (1) CH647541A5 (cg-RX-API-DMAC7.html)
DE (1) DE3201120A1 (cg-RX-API-DMAC7.html)
GB (1) GB2094825B (cg-RX-API-DMAC7.html)

Families Citing this family (28)

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JPS5857488A (ja) * 1981-10-02 1983-04-05 Mitsubishi Chem Ind Ltd ゲスト−ホスト型液晶組成物
DE3374875D1 (en) * 1982-11-29 1988-01-21 Hoffmann La Roche Coloured liquid crystal mixtures containing phenyl ethanes
DE3485232D1 (de) * 1983-03-23 1991-12-12 Hitachi Ltd Anthrachinonfarbstoffe und dieselben enthaltende fluessigkristalline zusammensetzungen.
JPH02143563A (ja) * 1988-11-25 1990-06-01 Fuji Electric Co Ltd サイリスタ
JP2002327176A (ja) 2001-03-01 2002-11-15 Toshiba Corp ゲスト−ホスト液晶組成物および液晶表示素子
CN104837959B (zh) 2012-12-13 2017-09-19 默克专利股份有限公司 液晶介质
CN105103046A (zh) 2013-03-05 2015-11-25 默克专利股份有限公司 用于调节光学能量穿透量的装置
KR102266840B1 (ko) 2013-05-08 2021-06-18 메르크 파텐트 게엠베하 광 에너지의 통과를 조절하기 위한 2개의 액정 스위칭 층을 포함하는 장치
US10344217B2 (en) 2013-05-24 2019-07-09 Merck Patent Gmbh Device for controlling the passage of energy, containing a dichroic dye compound
CN113684038B (zh) 2013-12-19 2025-05-06 默克专利股份有限公司 调节光透射的设备
DE102015005800A1 (de) 2015-05-06 2016-11-10 Merck Patent Gmbh Thiadiazolochinoxalinderivate
WO2017008880A1 (de) 2015-07-10 2017-01-19 Merck Patent Gmbh Dithioalkylpyrrolopyrrole und ihre verwendung als farbstoffe
US10982150B2 (en) 2016-06-28 2021-04-20 Merck Patent Gmbh Liquid crystalline medium
US11168257B2 (en) 2016-07-19 2021-11-09 Merck Patent Gmbh Liquid crystalline medium
WO2019238567A1 (en) 2018-06-11 2019-12-19 Merck Patent Gmbh Liquid crystalline medium
EP3810725B1 (en) 2018-06-20 2024-07-31 Merck Patent GmbH Liquid crystalline medium
JP7447099B2 (ja) 2018-09-25 2024-03-11 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング アゾ色素
KR102824189B1 (ko) 2018-11-23 2025-06-25 메르크 파텐트 게엠베하 이색성 염료 조성물
US11952528B2 (en) 2018-12-19 2024-04-09 Merck Patent Gmbh Switching layers for use in a switching element
CN114008176A (zh) 2019-06-17 2022-02-01 默克专利股份有限公司 基于液晶的光阀
EP3839620B1 (en) 2019-12-16 2025-02-26 Merck Patent GmbH Device for the regulation of light transmission
KR20220014170A (ko) * 2020-07-28 2022-02-04 현대모비스 주식회사 폴리카보네이트 수지 조성물 및 이를 포함하는 성형품
US20240134218A1 (en) 2020-12-11 2024-04-25 Merck Patent Gmbh Device for the regulation of light transmission
WO2023094404A1 (en) 2021-11-24 2023-06-01 Merck Patent Gmbh Liquid crystal medium and liquid crystal display
WO2024251656A1 (en) 2023-06-05 2024-12-12 Merck Patent Gmbh Liquid crystalline medium
WO2025061649A1 (en) 2023-09-20 2025-03-27 Merck Patent Gmbh Liquid crystal medium
KR20250113342A (ko) 2024-01-18 2025-07-25 메르크 파텐트 게엠베하 액정 매질
WO2025190813A1 (en) 2024-03-11 2025-09-18 Merck Patent Gmbh Liquid-crystal medium

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5328102B2 (cg-RX-API-DMAC7.html) * 1973-04-16 1978-08-12
US3960751A (en) * 1973-09-19 1976-06-01 Matsushita Electric Industrial Co., Ltd. Electro-optical display element
GB1507030A (en) * 1974-10-21 1978-04-12 Secr Defence Liquid crystal display devices
IT1115232B (it) * 1978-05-23 1986-02-03 Minnesota Mining & Mfg Coloranti pleocroici e sistemi visualizzatori del tipo elettro-ottico ottenuti con detti coloranti
CH638828A5 (de) * 1978-12-21 1983-10-14 Bbc Brown Boveri & Cie Fluessigkristallmischung.
US4232950A (en) 1979-02-23 1980-11-11 Minnesota Mining And Manufacturing Company Liquid crystal compositions including pleochroic dye
AU535899B2 (en) * 1979-02-23 1984-04-12 Minnesota Mining And Manufacturing Company Liquid crystal-pleochroic dye compositions
US4232949A (en) * 1979-02-23 1980-11-11 Minnesota Mining And Manufacturing Company Liquid crystal compositions containing pleochroic dye
US4304683A (en) * 1979-03-16 1981-12-08 Mitsui Toatsu Chemicals, Inc. Composition for liquid crystal color display element
US4360447A (en) 1979-03-16 1982-11-23 Mitsui Toatsu Chemicals, Inc. Composition for liquid crystal color display elements
CH641828A5 (fr) * 1979-08-17 1984-03-15 Ebauches Sa Composition a base de cristal liquide pour dispositif electro-optique.
EP0025809A1 (de) * 1979-09-21 1981-04-01 BBC Aktiengesellschaft Brown, Boveri & Cie. Flüssigkristallmischung
CH642393A5 (fr) * 1979-10-02 1984-04-13 Ebauches Sa Composition a base de cristal liquide pour dispositif electro-optique.
GB2065695B (en) * 1979-10-12 1984-07-25 Hitachi Ltd Guest-host type liquid crystal composition and liquid crystal display device using the same
DE3007198A1 (de) * 1980-02-26 1981-09-03 Siemens AG, 1000 Berlin und 8000 München Pleochroitischer anthrachinon-farbstoff, verfahren zu seiner herstellung und verwendung des farbstoffs
CH643291A5 (fr) 1980-03-21 1984-05-30 Asulab Sa Composition a base de cristal liquide pour dispositif electro-optique.
DE3014933A1 (de) * 1980-04-18 1981-10-29 Bayer Ag, 5090 Leverkusen Fluessigkristalline materialien enthaltend anthrachinonfarbstoffe
GB2082196B (en) 1980-07-29 1985-01-23 Secr Defence Liquid crystal materials containing anthraquinone pleochroic dyes
US4405211A (en) * 1980-07-29 1983-09-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal compositions with pleochroic anthraquinone dyes
GB2081736B (en) 1980-07-29 1985-02-20 Secr Defence Liquid crystal materials containing diamino-dihydroxy anthraquinone pleochroic dyes
EP0044893B1 (en) * 1980-07-29 1984-09-19 Imperial Chemical Industries Plc Anthraquinone compounds and process for their preparation
US4391489A (en) * 1980-07-29 1983-07-05 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal materials containing pleochroic anthraquinone dyes

Also Published As

Publication number Publication date
DE3201120A1 (de) 1982-10-21
CH647541A5 (de) 1985-01-31
US4434072A (en) 1984-02-28
DE3201120C2 (cg-RX-API-DMAC7.html) 1990-04-26
GB2094825A (en) 1982-09-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960115