GB2216523B - Dihalogenobenzene liquid crystalline compounds - Google Patents

Dihalogenobenzene liquid crystalline compounds

Info

Publication number
GB2216523B
GB2216523B GB8905443A GB8905443A GB2216523B GB 2216523 B GB2216523 B GB 2216523B GB 8905443 A GB8905443 A GB 8905443A GB 8905443 A GB8905443 A GB 8905443A GB 2216523 B GB2216523 B GB 2216523B
Authority
GB
United Kingdom
Prior art keywords
dihalogenobenzene
liquid crystalline
crystalline compounds
compounds
liquid
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 - Fee Related
Application number
GB8905443A
Other languages
English (en)
Other versions
GB2216523A (en
GB8905443D0 (en
Inventor
Volker Reiffenrath
R Joachim Krause
Georg Weber
R Ulrich Finkenzeller
R Andreas Waechtler
R Thomas Geelhaar
R David Coates
R Ian Charles Sage
R Simon Greenfield
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.)
Merck Patent GmbH
Original Assignee
Merck Patent GmbH
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 Merck Patent GmbH filed Critical Merck Patent GmbH
Publication of GB8905443D0 publication Critical patent/GB8905443D0/en
Publication of GB2216523A publication Critical patent/GB2216523A/en
Application granted granted Critical
Publication of GB2216523B publication Critical patent/GB2216523B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/28Radicals substituted by singly-bound oxygen or sulphur atoms
    • C07D213/30Oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C25/00Compounds containing at least one halogen atom bound to a six-membered aromatic ring
    • C07C25/18Polycyclic aromatic halogenated hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C251/00Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
    • C07C251/02Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
    • C07C251/24Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to carbon atoms of six-membered aromatic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • C07C255/01Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
    • C07C255/11Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound oxygen atoms bound to the same saturated acyclic carbon skeleton
    • C07C255/14Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and singly-bound oxygen atoms bound to the same saturated acyclic carbon skeleton containing cyano groups and esterified hydroxy groups bound to the carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • C07C255/49Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C255/50Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • C07C255/49Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C255/55Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and esterified hydroxy groups bound to the carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00Ethers; Compounds having groups, groups or groups
    • C07C43/02Ethers
    • C07C43/20Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
    • C07C43/225Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing halogen
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/45Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76Ketones containing a keto group bound to a six-membered aromatic ring
    • C07C49/84Ketones containing a keto group bound to a six-membered aromatic ring containing ether groups, groups, groups, or groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32One oxygen, sulfur or nitrogen atom
    • C07D239/34One oxygen atom
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/0403Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit the structure containing one or more specific, optionally substituted ring or ring systems
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/14Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/20Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
    • C09K19/2007Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001Cyclohexane rings
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/34Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3441Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14The ring being saturated
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/0403Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit the structure containing one or more specific, optionally substituted ring or ring systems
    • C09K2019/0407Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit the structure containing one or more specific, optionally substituted ring or ring systems containing a carbocyclic ring, e.g. dicyano-benzene, chlorofluoro-benzene or cyclohexanone
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K2019/0444Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K2019/0444Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
    • C09K2019/0448Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
GB8905443A 1988-03-10 1989-03-09 Dihalogenobenzene liquid crystalline compounds Expired - Fee Related GB2216523B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3807908 1988-03-10

Publications (3)

Publication Number Publication Date
GB8905443D0 GB8905443D0 (en) 1989-04-19
GB2216523A GB2216523A (en) 1989-10-11
GB2216523B true GB2216523B (en) 1991-12-11

Family

ID=6349347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8905443A Expired - Fee Related GB2216523B (en) 1988-03-10 1989-03-09 Dihalogenobenzene liquid crystalline compounds

Country Status (5)

Country Link
JP (1) JPH024725A (it)
CH (1) CH678334A5 (it)
DD (1) DD283641A5 (it)
GB (1) GB2216523B (it)
IT (1) IT1232356B (it)

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JPH03503651A (ja) * 1989-01-27 1991-08-15 メルク パテント ゲゼルシヤフト ミツト ベシユレンクテル ハフトング ビフェニリルエタン化合物
JPH089565B2 (ja) * 1989-07-20 1996-01-31 三洋化成工業株式会社 液晶化合物
US5250220A (en) * 1989-08-12 1993-10-05 Merck Patent Gesellschaft Mit Beschrankter Haftung 2,5-disubstituted heterocyclic compounds, and a liquid-crystalline medium
US5171473A (en) * 1989-10-18 1992-12-15 Hoffmann-La Roche Inc. Liquid crystal compounds having a terminal 1-alkynyl residue
US5264149A (en) * 1989-10-18 1993-11-23 Hoffmann-La Roche Inc. Liquid crystal compounds having a terminal 1-alkynyl residue
JP2977410B2 (ja) * 1993-04-26 1999-11-15 シャープ株式会社 強誘電性液晶組成物およびこれを用いた素子
JP3187611B2 (ja) * 1993-05-17 2001-07-11 キヤノン株式会社 液晶性化合物、これを含む液晶組成物、それを有する液晶素子、それらを用いた表示方法および表示装置
US5457551A (en) * 1993-10-08 1995-10-10 Planar Systems, Inc. Frame response compensated, video rate addressable liquid crystal passive matrix display system
GB9413324D0 (en) * 1994-07-01 1994-08-24 Secr Defence Liquid crystal compounds, mixtures and devices
GB2310669B (en) * 1996-02-27 2000-09-27 Merck Patent Gmbh An electrooptical liquid crystal display of the IPS type containing a liquid crystalline medium having positive dielectric anisotropy and such a medium
DE69713339T2 (de) 1996-04-02 2002-12-05 Chisso Corp Flüssigkristallverbindungen, flüssigkristalle enthaltende zubereitungen, und aus diesen verbindungen hergestellte flüssigkristallanzeigen
JPH10237024A (ja) * 1997-02-24 1998-09-08 Chisso Corp 誘電率異方性値が負の液晶性化合物、この液晶性化合物を含有する液晶組成物、及びこの液晶組成物を用いた液晶表示素子
JP4320824B2 (ja) * 1998-06-02 2009-08-26 チッソ株式会社 Δεが負の値を有するアルケニル化合物、液晶組成物および液晶表示素子
DE60022229T2 (de) * 2000-02-07 2006-03-30 Merck Patent Gmbh Benzoesäureester und flüssigkristallmedium
TWI319762B (en) 2002-09-27 2010-01-21 1,7,8-trifluoro-2-naphthol and manufacturing methods for liquid crystal compositions containing the same
TWI405841B (zh) 2004-12-15 2013-08-21 Dainippon Ink & Chemicals 向列液晶組成物及使用它之液晶顯示元件
TWI378139B (en) 2005-01-27 2012-12-01 Dainippon Ink & Chemicals A difluorobenzene derivative and a nematic liquid crystal composition using the same
JP4900240B2 (ja) * 2005-03-17 2012-03-21 Jnc株式会社 液晶組成物および液晶表示素子
CN101142160B (zh) 2005-03-17 2011-04-13 大日本油墨化学工业株式会社 二氟苯衍生物及使用其的向列型液晶组合物
EP1739151B1 (en) 2005-07-01 2010-09-15 Merck Patent GmbH Mesogenic compounds, liquid crystal medium and liquid display
CN101351432B (zh) 2006-01-06 2011-08-31 智索株式会社 具有烯基的单氟化联三苯化合物、液晶组成物及液晶显示元件
EP1903090B1 (en) 2006-09-06 2011-07-27 JNC Corporation Cyclohexene derivative having alkenyl, liquid crystal composition and liquid crystal display device
ATE486113T1 (de) 2006-09-06 2010-11-15 Chisso Corp Chlorfluorbenzol-flüssigkristallverbindung, flüssigkristallzusammensetzung und flüssigkristallanzeigevorrichtung
JP5422898B2 (ja) * 2007-03-08 2014-02-19 Jnc株式会社 ハロゲン化アルキル基と結合した2,2,2−ビシクロオクタンを有する新規な化合物およびこれを用いた液晶組成物
CN101868439B (zh) * 2007-09-06 2014-02-05 Jnc株式会社 具有侧向氟的4、5环液晶性化合物、液晶组成物以及液晶显示元件
CN101980996B (zh) * 2008-04-09 2013-06-26 Jnc株式会社 含有侧向氟的3环液晶性化合物、液晶组成物及液晶显示元件
EP2272837B1 (en) 2008-05-09 2014-12-17 JNC Corporation Liquid crystalline compound with negative dielectric anisotropy, liquid crystal composition, and liquid crystal display device
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US8389073B2 (en) 2009-02-19 2013-03-05 Jnc Corporation Four-ring liquid crystal compound having tetrahydropyran and 2,2′,3,3′-tetrafluorobiphenyl, liquid crystal composition and liquid crystal display device
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WO2011021531A1 (ja) 2009-08-18 2011-02-24 ローム株式会社 入出力装置、モバイル機器、情報表示機器
TWI480363B (zh) 2009-08-19 2015-04-11 Jnc Corp 四氫吡喃化合物、液晶組成物及液晶顯示元件
CN102574759B (zh) * 2009-10-01 2015-04-01 捷恩智株式会社 介电常数异向性为负的液晶性化合物、使用其的液晶组成物及液晶显示元件
US10221114B2 (en) 2013-09-19 2019-03-05 Jnc Corporation Liquid crystal compound having tetrafluoro cyclohexadiene structure showing negative anisotropy, liquid crystal composition, and liquid crystal display device
JP6575177B2 (ja) * 2014-07-25 2019-09-18 Dic株式会社 接触水素還元による製造方法
JP6493678B2 (ja) * 2014-07-31 2019-04-03 Jnc株式会社 液晶性化合物、液晶組成物および液晶表示素子

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063250A (en) * 1979-10-02 1981-06-03 Bdh Chemicals Ltd Liquid crystal esters
EP0064193A1 (de) * 1981-04-30 1982-11-10 MERCK PATENT GmbH Fluorhaltige 4,4'-Bis-(cyclohexyl)-biphenylderivate, diese enthaltende Dielektrika und elektrooptisches Anzeigeelement
WO1985004874A1 (en) * 1984-04-16 1985-11-07 Merck Patent Gmbh Anisotropic compounds and liquid crystal mixtures therewith

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063250A (en) * 1979-10-02 1981-06-03 Bdh Chemicals Ltd Liquid crystal esters
EP0064193A1 (de) * 1981-04-30 1982-11-10 MERCK PATENT GmbH Fluorhaltige 4,4'-Bis-(cyclohexyl)-biphenylderivate, diese enthaltende Dielektrika und elektrooptisches Anzeigeelement
WO1985004874A1 (en) * 1984-04-16 1985-11-07 Merck Patent Gmbh Anisotropic compounds and liquid crystal mixtures therewith

Also Published As

Publication number Publication date
CH678334A5 (it) 1991-08-30
IT8947727A0 (it) 1989-03-09
GB2216523A (en) 1989-10-11
DD283641A5 (de) 1990-10-17
JPH024725A (ja) 1990-01-09
GB8905443D0 (en) 1989-04-19
IT1232356B (it) 1992-01-28

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030309