LIQUID-CRYSTAL DERIVATIVES OF 2,5-DISUBSTITUTED PYRIDINE AS COMPONENTS OF LIQUID-CRYSTAL MATERIAL, AND A LIQUID-CRYSTAL MATERIAL

Liquid-crystal derivatives of 2,5-disubstituted pyridine have genral formula (I), where, if y is (a), Z is CN, (b), (c), (d), (e), (f), (g); if y is R', Z is (f), (h), (i), (j), (e), (k), (l), (m); if y is CN, Z is (a); if y is (n), Z is (i), (e); if y is (o), Z is (p); R , R are alkyl groups,...

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Bibliographic Details
Main Author PAVLJUCHENKO, ASSYA IOSIFOVNA
Format Patent
LanguageEnglish
French
German
Published 12.04.1989
Edition4
Subjects
ADHESIVES
CHEMISTRY
DYES
HETEROCYCLIC COMPOUNDS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Summary:Liquid-crystal derivatives of 2,5-disubstituted pyridine have genral formula (I), where, if y is (a), Z is CN, (b), (c), (d), (e), (f), (g); if y is R', Z is (f), (h), (i), (j), (e), (k), (l), (m); if y is CN, Z is (a); if y is (n), Z is (i), (e); if y is (o), Z is (p); R , R are alkyl groups, having from 1 to 12 carbon atoms, R is F, NO2, NH2, CN, as components of a liquid-crystal material. A liquid-crystal material comprises at least two liquid-crystal components, at least one of them being the liquid-crystal derivative of 2,5-disubstituted pyridine of general formula (I), in a quantity of 1 to 75% by mass. Des dérivés cristallins liquides de 2,5-pyridine disubstituée ont la formule générale (I) dans laquelle, si y est (a), Z est CN, (b), (c), (d), (e), (f), (g); si y est R', Z est (f), (h), (i), (j), (e), (k), (l), (m), si y est CN, Z est (a); si y est (n), Z est (i), (e); si y est (o), Z est (p); R1 R2 sont des groupes alkyle ayant de 1 à 12 atomes de carbone, R3 est F, NO2, NH2, CN. Ces dérivés sont utilisés à titre de constituants d'un matériau cristallin liquide. Un matériau cristallin liquide comprend au moins deux constituants cristallins liquides dont au moins un est le dérivé cristallin liquide de 2,5-pyridine disubstituée de formule générale (I) dans une quantité de 1 à 75% en poids.
Bibliography:Application Number: EP19880903125