DE3174269D1 - Liquid crystal compositions with tris-azo dichroic dyes - Google Patents

Liquid crystal compositions with tris-azo dichroic dyes

Info

Publication number
DE3174269D1
DE3174269D1 DE8181110266T DE3174269T DE3174269D1 DE 3174269 D1 DE3174269 D1 DE 3174269D1 DE 8181110266 T DE8181110266 T DE 8181110266T DE 3174269 T DE3174269 T DE 3174269T DE 3174269 D1 DE3174269 D1 DE 3174269D1
Authority
DE
Germany
Prior art keywords
tris
liquid crystal
crystal compositions
dichroic dyes
azo dichroic
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
DE8181110266T
Other languages
English (en)
Inventor
Herbert Stanley Cole
Siegfried Aftergut
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.)
Ametek Aerospace Products Inc
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of DE3174269D1 publication Critical patent/DE3174269D1/de
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
    • 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
    • C09K19/601—Azoic
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/35—Trisazo dyes in which the tetrazo component is a diamino-azo-aryl compound

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Liquid Crystal (AREA)
DE8181110266T 1980-12-22 1981-12-09 Liquid crystal compositions with tris-azo dichroic dyes Expired DE3174269D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/219,087 US4359398A (en) 1980-12-22 1980-12-22 Liquid crystal compositions with novel tris-azo dichroic dyes

Publications (1)

Publication Number Publication Date
DE3174269D1 true DE3174269D1 (en) 1986-05-07

Family

ID=22817822

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181110266T Expired DE3174269D1 (en) 1980-12-22 1981-12-09 Liquid crystal compositions with tris-azo dichroic dyes

Country Status (5)

Country Link
US (1) US4359398A (de)
EP (1) EP0054837B1 (de)
JP (1) JPS57502002A (de)
DE (1) DE3174269D1 (de)
WO (1) WO1982002209A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043904A3 (de) * 1980-07-10 1982-03-31 F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft Farbstoffhaltige Mischungen, neue Farbstoffe und deren Verwendung in Flüssigkristallmischungen
DE3049454A1 (de) 1980-12-30 1982-07-29 Bayer Ag, 5090 Leverkusen Fluessigkristallines material enthaltend disazofarbstoffe
DE3123519A1 (de) * 1981-06-13 1982-12-30 Bayer Ag, 5090 Leverkusen Fluessigkristallines material enthaltend azofarbstoffe
US4401369A (en) * 1981-10-19 1983-08-30 Electronic Display Systems, Inc. Class of dichroic dyes for use with liquid crystals
JPS5876841A (ja) * 1981-11-02 1983-05-10 Mita Ind Co Ltd 電子写真感光体
US4411812A (en) * 1981-11-12 1983-10-25 General Electric Company Dichroic liquid crystal compositions made with asymmetric tris-azo dyes
US4493532A (en) * 1981-11-16 1985-01-15 Hitachi, Ltd. Pleochroic azo dyes, a liquid crystal composition containing the azo dyes and a display device using the liquid crystal composition
JPS58138767A (ja) * 1982-02-10 1983-08-17 Hitachi Ltd 液晶組成物及び表示素子
JPS5947261A (ja) * 1982-09-13 1984-03-16 Nippon Kanko Shikiso Kenkyusho:Kk 液晶用アゾ色素の二色性改良法
JPS58186723A (ja) * 1982-04-26 1983-10-31 Seiko Epson Corp 液晶表示装置
JPS58194034A (ja) * 1982-05-10 1983-11-11 Mita Ind Co Ltd 電子写真感光体
US4588517A (en) * 1982-06-30 1986-05-13 Hitachi, Ltd. Liquid crystal composition
EP0099014A3 (de) * 1982-07-16 1984-12-12 Asulab S.A. Dunkelfarbige Zusammensetzung auf der Basis von Flüssigkristallen
DE3245751A1 (de) * 1982-12-10 1984-06-14 Bayer Ag, 5090 Leverkusen Azofarbstoffe und fluessigkristallines material enthaltend azofarbstoffe
DE3529988A1 (de) * 1985-08-22 1987-02-26 Basf Ag Trisazofarbstoffe und deren verwendung in fluessigkristallinen materialien
DE3639156A1 (de) * 1986-11-15 1988-05-26 Basf Ag Trisazofarbstoffe
US7879986B2 (en) * 2005-02-04 2011-02-01 Berry & Associates, Inc. Dark quenchers, probes and other conjugates incorporating the same, and their use

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942287B2 (ja) * 1972-12-19 1984-10-13 松下電器産業株式会社 色相変調表示装置
JPS5328102B2 (de) * 1973-04-16 1978-08-12
US3941560A (en) * 1973-12-07 1976-03-02 American Aniline Products, Inc. Trisazo polyester materials
GB1507030A (en) * 1974-10-21 1978-04-12 Secr Defence Liquid crystal display devices
US4145114A (en) * 1975-06-17 1979-03-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Pleochroic dyes
CH594897A5 (de) * 1976-06-23 1978-01-31 Bbc Brown Boveri & Cie
US4179395A (en) * 1976-09-09 1979-12-18 General Electric Company Dichroic dyes having a plurality of azo bonding groups
US4128497A (en) * 1976-09-09 1978-12-05 General Electric Company Dichroic liquid crystal compositions
US4128496A (en) * 1976-09-09 1978-12-05 General Electric Company Dichroic liquid crystal compositions
US4122027A (en) * 1976-11-08 1978-10-24 General Electric Company Dichroic liquid crystal composition with 4,4-bis (substituted naphthylazo)azobenzene dichroic dyes
US4098301A (en) * 1976-12-23 1978-07-04 Rca Corporation Method to provide homogeneous liquid crystal cells containing a dyestuff
US4141627A (en) * 1977-01-06 1979-02-27 Rca Corporation Electro-optic device
US4153343A (en) * 1977-06-09 1979-05-08 Rca Corporation Liquid crystal dyestuffs and electro-optic devices incorporating same
US4116861A (en) * 1977-08-18 1978-09-26 General Electric Company Dichroic liquid crystal compositions
US4137143A (en) * 1977-12-14 1979-01-30 Nauchno-Issledovatelsky Institut Avtomatizatsii Upravlenia I Proizvodstva Niiap Apparatus for electrochemical machining of metal parts
JPS6045677B2 (ja) * 1979-03-23 1985-10-11 株式会社東芝 液晶表示装置
US4308161A (en) * 1980-08-04 1981-12-29 General Electric Company Novel yellow azo dyes and dichroic liquid crystal compositions made therewith
US4308162A (en) * 1980-12-08 1981-12-29 General Electric Company Novel yellow azo dyes and dichroic liquid crystal compositions made therewith

Also Published As

Publication number Publication date
EP0054837A1 (de) 1982-06-30
WO1982002209A1 (en) 1982-07-08
US4359398A (en) 1982-11-16
EP0054837B1 (de) 1986-04-02
JPS57502002A (de) 1982-11-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AMETEK AEROSPACE PRODUCTS, INC. (N.D.GES.D.STAATES

8339 Ceased/non-payment of the annual fee