DE2257588A1 - Crystalline-Liquid nematic substances - Google Patents

Crystalline-Liquid nematic substances

Info

Publication number
DE2257588A1
DE2257588A1 DE19722257588 DE2257588A DE2257588A1 DE 2257588 A1 DE2257588 A1 DE 2257588A1 DE 19722257588 DE19722257588 DE 19722257588 DE 2257588 A DE2257588 A DE 2257588A DE 2257588 A1 DE2257588 A1 DE 2257588A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
crystalline
nematic substances
liquid nematic
liquid
substances
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
DE19722257588
Other languages
German (de)
Other versions
DE2257588B2 (en )
Inventor
Dietrich Dipl Chem Dr Demus
Frank Dipl Chem Dinger
Frank Dipl Chem Dr Kuschel
Hermann Prof Dipl Che Schubert
Horst Dipl Chem Dr Zaschke
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.)
VEB WERK fur FERNSEHELEKTRONIK X 1160 BERLIN-OBERSCHOENEWEIDE
WERK FERNSEHELEKTRONIK VEB
Original Assignee
VEB WERK fur FERNSEHELEKTRONIK X 1160 BERLIN-OBERSCHOENEWEIDE
WERK FERNSEHELEKTRONIK VEB
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

Links

Classifications

    • 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
    • C07D239/26Heterocyclic 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 only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • 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
    • 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
    • C07D239/46Two or more oxygen, sulfur or nitrogen atoms
    • C07D239/52Two oxygen atoms
    • C07D239/54Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • 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
    • C09K19/345Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a six-membered aromatic ring containing two nitrogen atoms
    • C09K19/3458Uncondensed pyrimidines
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by a particular electro- or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction, dynamic scattering
    • G02F1/13725Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by a particular electro- or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction, dynamic scattering based on guest-host interaction
DE19722257588 1971-12-22 1972-11-24 Use of liquid crystalline-nematic derivatives of phenylpyrimidine Pending DE2257588B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DD15996771 1971-12-22
DD16340972 1972-06-05

Publications (2)

Publication Number Publication Date
DE2257588A1 true true DE2257588A1 (en) 1973-06-28
DE2257588B2 true DE2257588B2 (en) 1976-07-22

Family

ID=25747441

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722257588 Pending DE2257588B2 (en) 1971-12-22 1972-11-24 Use of liquid crystalline-nematic derivatives of phenylpyrimidine

Country Status (2)

Country Link
DE (1) DE2257588B2 (en)
FR (1) FR2164702B1 (en)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547737A1 (en) * 1974-10-25 1976-04-29 Hoffmann La Roche phenylpyrimidines
DE2641724A1 (en) * 1975-09-19 1977-03-24 Hoffmann La Roche pyrimidine derivatives
US4066570A (en) * 1974-10-25 1978-01-03 Hoffman-La Roche Inc. Phenyl-pyrimidines
US4180475A (en) * 1976-02-26 1979-12-25 Hoffmann La Roche Liquid crystal mixtures
US4198130A (en) * 1977-06-03 1980-04-15 Hoffmann-La Roche Inc. Liquid crystal mixtures
EP0025119A1 (en) * 1979-08-20 1981-03-18 VEB Werk Für Fernsehelektronik im VEB Kombinat Mikroelektronik Nematic crystalline-liquid 5-alkyl-2-(4-acyloxyphenyl)-pyrimidines for opto-electronic arrangements and process for their preparation
US4273929A (en) * 1979-02-05 1981-06-16 Hoffmann-La Roche Inc. Heterocyclic compounds
US4325830A (en) * 1980-12-24 1982-04-20 Timex Corporation Three ring dioxane liquid crystalline compounds
US4335011A (en) * 1980-03-28 1982-06-15 Timex Corporation Cyclohexyl-dioxane liquid crystalline compounds
US4348324A (en) * 1978-12-13 1982-09-07 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Liquid crystalline substituted 1,3-dioxanes and mixtures containing these
US4348298A (en) * 1978-06-16 1982-09-07 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystal mixtures
US4356103A (en) * 1978-02-06 1982-10-26 Veb Werk Fur Fernsehelektronik Liquid crystals for electro-optical devices
US4358589A (en) * 1979-02-02 1982-11-09 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystal compounds
US4358393A (en) * 1979-05-15 1982-11-09 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystals of 5-cyano-2-[4-acyloxyphenyl]-pyrimidines and mixtures containing the same
EP0031021B1 (en) * 1979-12-19 1983-05-18 MERCK PATENT GmbH Tetrahydroquinazolines, process for their preparation, liquid crystalline dielectrics containing them and electro-optical display element
DE3246440A1 (en) * 1981-12-18 1983-06-30 Hoffmann La Roche Acetylene
US4391730A (en) * 1979-08-09 1983-07-05 Veb Werk Fuer Fernsehelektronik Berlin Im Veb Kombinat Mikroelektronik Nematic liquid crystal compounds and use and device for using the same
US4410445A (en) * 1980-06-26 1983-10-18 Merck Patent Gesellschaft Mit Beschrankter Haftung Liquid-crystalline dielectric having a steep characteristic curve
US4419262A (en) * 1982-05-14 1983-12-06 Hoffmann-La Roche Inc. Pyridazines
US4452718A (en) * 1981-07-31 1984-06-05 Hoffmann-La Roche Inc. Pyridazines
US4462923A (en) * 1980-10-14 1984-07-31 Hoffmann-La Roche Inc. Disubstituted pyrimidines
US4533488A (en) * 1982-08-26 1985-08-06 Chisso Corporation Pyrimidine derivatives
WO1986000087A1 (en) * 1984-06-07 1986-01-03 Seiko Instruments & Electronics Ltd. Liquid crystal compound
DE3524489A1 (en) * 1984-07-12 1986-01-23 Suwa Seikosha Kk 2-phenylpyridine derivatives and process for their manufacture
US4581155A (en) * 1983-03-31 1986-04-08 Chisso Corporation Halogenopyrimidine derivatives
US4585575A (en) * 1984-01-11 1986-04-29 Chisso Corporation 2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalenes
US4588518A (en) * 1978-08-30 1986-05-13 Hitachi, Ltd. Nematic liquid crystal composition for display devices
US4592857A (en) * 1983-08-22 1986-06-03 Chisso Corporation 2,3-dicyano-5-substituted pyrazines
US4609485A (en) * 1984-02-17 1986-09-02 Chisso Corporation Bipyrimidinyl derivatives
US4640796A (en) * 1984-12-27 1987-02-03 Chisso Corporation 1,4-dipyrimidinylbenzene derivative
US4640795A (en) * 1986-03-21 1987-02-03 Chisso Corporation 5-alkyl-2-(3,4-difluorophenyl)pyrimidine and nematic liquid crystal composition containing same
US4643841A (en) * 1983-08-30 1987-02-17 Sharp Kabushiki Kaisha Liquid-crystal composition
US4684476A (en) * 1985-02-27 1987-08-04 Chisso Corporation Pyrimidine derivative and liquid crystal composition containing same
US4715984A (en) * 1985-01-22 1987-12-29 Merck Patent Gesellschaft Mit Beschrankter Haftung Liquid-crystalline dihydroazines
US4722804A (en) * 1983-05-26 1988-02-02 Sharp Kabushiki Kaisha Liquid crystal composition
US4751017A (en) * 1985-03-22 1988-06-14 Merck Patent Gesellschaft Mit Beschrankter Haftung Heterocyclic boron compounds
US4788000A (en) * 1983-05-26 1988-11-29 Sharp Kabushiki Kaisha Liquid-crystal composition
US4812258A (en) * 1983-04-27 1989-03-14 Merck Patent Gesellschaft Mit Beschrankter Haftung Fluorine-containing pyrimidine derivatives
JPS6470474A (en) * 1986-09-09 1989-03-15 Ajinomoto Kk Phenylpyrimidine compound and liquid crystal composition containing said compound
US4874542A (en) * 1987-03-31 1989-10-17 Ajinomoto Co., Inc. Phenyl-pyrimidine liquid crystal compounds and liquid crystal compositions containing the same
US4874546A (en) * 1985-05-15 1989-10-17 Chisso Corporation Phenylpyrimidinecarboxylate derivative
US4876026A (en) * 1986-12-26 1989-10-24 Chisso Corporation Optically active-2-methylbutyrate and materials using the same
US4882086A (en) * 1988-02-09 1989-11-21 Chisso Corporation Ferroelectric liquid crystal composition
US4882083A (en) * 1987-06-01 1989-11-21 Chisso Corporation Smectic liquid crystal mixture
US4895671A (en) * 1987-10-21 1990-01-23 Chisso Corporation Optically active phenylpyrimidine compound and a liquid crystal composition
US4980082A (en) * 1986-09-02 1990-12-25 Seiko Instruments Inc. Ferroelectric SmC liquid crystal composition which comprises pyrimidinylphenyl ester compounds
US5068053A (en) * 1987-03-27 1991-11-26 Merck Patent Gesellschaft Mit Beschrankter Haftung Ethyne derivatives as a component of liquid crystal phases
US5071589A (en) * 1987-09-19 1991-12-10 Hoechst Aktiengesellschaft Liquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixtures

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500909A1 (en) * 1985-01-12 1986-07-17 Merck Patent Gmbh pyrimidines
JPH0730041B2 (en) * 1987-06-01 1995-04-05 チッソ株式会社 Smectic liquid crystal compound
JPH01113373A (en) * 1987-10-26 1989-05-02 Chisso Corp 5-alkoxy-2-(4-alkoxyphenyl)pyrimidine

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547737A1 (en) * 1974-10-25 1976-04-29 Hoffmann La Roche phenylpyrimidines
US4066570A (en) * 1974-10-25 1978-01-03 Hoffman-La Roche Inc. Phenyl-pyrimidines
US4062798A (en) * 1975-09-19 1977-12-13 Hoffmann-La Roche Inc. Phenylpyrimidine derivatives
DE2641724A1 (en) * 1975-09-19 1977-03-24 Hoffmann La Roche pyrimidine derivatives
US4180475A (en) * 1976-02-26 1979-12-25 Hoffmann La Roche Liquid crystal mixtures
US4198130A (en) * 1977-06-03 1980-04-15 Hoffmann-La Roche Inc. Liquid crystal mixtures
US4356103A (en) * 1978-02-06 1982-10-26 Veb Werk Fur Fernsehelektronik Liquid crystals for electro-optical devices
US4348298A (en) * 1978-06-16 1982-09-07 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystal mixtures
US4588518A (en) * 1978-08-30 1986-05-13 Hitachi, Ltd. Nematic liquid crystal composition for display devices
US4348324A (en) * 1978-12-13 1982-09-07 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Liquid crystalline substituted 1,3-dioxanes and mixtures containing these
US4358589A (en) * 1979-02-02 1982-11-09 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystal compounds
US4273929A (en) * 1979-02-05 1981-06-16 Hoffmann-La Roche Inc. Heterocyclic compounds
US4389329A (en) * 1979-02-05 1983-06-21 Hoffmann-La Roche Inc. Meterocyclic compounds
US4358393A (en) * 1979-05-15 1982-11-09 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Nematic liquid crystals of 5-cyano-2-[4-acyloxyphenyl]-pyrimidines and mixtures containing the same
US4391730A (en) * 1979-08-09 1983-07-05 Veb Werk Fuer Fernsehelektronik Berlin Im Veb Kombinat Mikroelektronik Nematic liquid crystal compounds and use and device for using the same
US4311610A (en) * 1979-08-20 1982-01-19 Veb Werk Fur Fernsehelektronik Im Veb Kombinat Mikroelektronik Liquid crystalline 5-alkyl-2 (4-acyloxy-phenyl)-pyrimidine
EP0025119A1 (en) * 1979-08-20 1981-03-18 VEB Werk Für Fernsehelektronik im VEB Kombinat Mikroelektronik Nematic crystalline-liquid 5-alkyl-2-(4-acyloxyphenyl)-pyrimidines for opto-electronic arrangements and process for their preparation
EP0031021B1 (en) * 1979-12-19 1983-05-18 MERCK PATENT GmbH Tetrahydroquinazolines, process for their preparation, liquid crystalline dielectrics containing them and electro-optical display element
US4335011A (en) * 1980-03-28 1982-06-15 Timex Corporation Cyclohexyl-dioxane liquid crystalline compounds
US4410445A (en) * 1980-06-26 1983-10-18 Merck Patent Gesellschaft Mit Beschrankter Haftung Liquid-crystalline dielectric having a steep characteristic curve
US4462923A (en) * 1980-10-14 1984-07-31 Hoffmann-La Roche Inc. Disubstituted pyrimidines
US4325830A (en) * 1980-12-24 1982-04-20 Timex Corporation Three ring dioxane liquid crystalline compounds
US4452718A (en) * 1981-07-31 1984-06-05 Hoffmann-La Roche Inc. Pyridazines
US4528114A (en) * 1981-12-18 1985-07-09 Hoffmann-La Roche Inc. Acetylenes
DE3246440A1 (en) * 1981-12-18 1983-06-30 Hoffmann La Roche Acetylene
US4419262A (en) * 1982-05-14 1983-12-06 Hoffmann-La Roche Inc. Pyridazines
US4533488A (en) * 1982-08-26 1985-08-06 Chisso Corporation Pyrimidine derivatives
US4581155A (en) * 1983-03-31 1986-04-08 Chisso Corporation Halogenopyrimidine derivatives
US4812258A (en) * 1983-04-27 1989-03-14 Merck Patent Gesellschaft Mit Beschrankter Haftung Fluorine-containing pyrimidine derivatives
US4722804A (en) * 1983-05-26 1988-02-02 Sharp Kabushiki Kaisha Liquid crystal composition
US4788000A (en) * 1983-05-26 1988-11-29 Sharp Kabushiki Kaisha Liquid-crystal composition
US4592857A (en) * 1983-08-22 1986-06-03 Chisso Corporation 2,3-dicyano-5-substituted pyrazines
US4643841A (en) * 1983-08-30 1987-02-17 Sharp Kabushiki Kaisha Liquid-crystal composition
US4585575A (en) * 1984-01-11 1986-04-29 Chisso Corporation 2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalenes
US4609485A (en) * 1984-02-17 1986-09-02 Chisso Corporation Bipyrimidinyl derivatives
WO1986000087A1 (en) * 1984-06-07 1986-01-03 Seiko Instruments & Electronics Ltd. Liquid crystal compound
US4725688A (en) * 1984-06-07 1988-02-16 Seiko Instruments Inc. Liquid crystal compound
US4684220A (en) * 1984-07-12 1987-08-04 Seiko Epson Kabushiki Kaisha 2-phenylpyridine derivatives and liquid crystal compositions including same
DE3524489A1 (en) * 1984-07-12 1986-01-23 Suwa Seikosha Kk 2-phenylpyridine derivatives and process for their manufacture
US4640796A (en) * 1984-12-27 1987-02-03 Chisso Corporation 1,4-dipyrimidinylbenzene derivative
US4715984A (en) * 1985-01-22 1987-12-29 Merck Patent Gesellschaft Mit Beschrankter Haftung Liquid-crystalline dihydroazines
US4684476A (en) * 1985-02-27 1987-08-04 Chisso Corporation Pyrimidine derivative and liquid crystal composition containing same
US4751017A (en) * 1985-03-22 1988-06-14 Merck Patent Gesellschaft Mit Beschrankter Haftung Heterocyclic boron compounds
US4874546A (en) * 1985-05-15 1989-10-17 Chisso Corporation Phenylpyrimidinecarboxylate derivative
US4640795A (en) * 1986-03-21 1987-02-03 Chisso Corporation 5-alkyl-2-(3,4-difluorophenyl)pyrimidine and nematic liquid crystal composition containing same
US4980082A (en) * 1986-09-02 1990-12-25 Seiko Instruments Inc. Ferroelectric SmC liquid crystal composition which comprises pyrimidinylphenyl ester compounds
JPS6470474A (en) * 1986-09-09 1989-03-15 Ajinomoto Kk Phenylpyrimidine compound and liquid crystal composition containing said compound
US4892676A (en) * 1986-09-09 1990-01-09 Ajinomoto Co., Inc. Phenyl pyrimidine compound and liquid crystalline composition
JP2508125B2 (en) * 1986-09-09 1996-06-19 味の素株式会社 Phenylpyrimidine compound and a liquid crystal composition containing the same
US4876026A (en) * 1986-12-26 1989-10-24 Chisso Corporation Optically active-2-methylbutyrate and materials using the same
US5068053A (en) * 1987-03-27 1991-11-26 Merck Patent Gesellschaft Mit Beschrankter Haftung Ethyne derivatives as a component of liquid crystal phases
US4874542A (en) * 1987-03-31 1989-10-17 Ajinomoto Co., Inc. Phenyl-pyrimidine liquid crystal compounds and liquid crystal compositions containing the same
US4882083A (en) * 1987-06-01 1989-11-21 Chisso Corporation Smectic liquid crystal mixture
US5071589A (en) * 1987-09-19 1991-12-10 Hoechst Aktiengesellschaft Liquid-crystalline mixtures, in particular ferroelectric liquid-crystalline mixtures
US4895671A (en) * 1987-10-21 1990-01-23 Chisso Corporation Optically active phenylpyrimidine compound and a liquid crystal composition
US4882086A (en) * 1988-02-09 1989-11-21 Chisso Corporation Ferroelectric liquid crystal composition

Also Published As

Publication number Publication date Type
DE2257588B2 (en) 1976-07-22 application
FR2164702B1 (en) 1976-08-27 grant
FR2164702A1 (en) 1973-08-03 application

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977