CARBOXYLSÄURE-VERBINDUNGEN, FLÜSSIGKRISTALLINE ZUSAMMENSETZUNGEN UND SIE ENTHALTENDE FLÜSSIGKRISTALLELEMENTE UND VERFAHREN ZU OPTISCHER MODULATION UNTER VERWENDUNG DIESER ELEMENTE

CARBOXYLSÄURE-VERBINDUNGEN, FLÜSSIGKRISTALLINE ZUSAMMENSETZUNGEN UND SIE ENTHALTENDE FLÜSSIGKRISTALLELEMENTE UND VERFAHREN ZU OPTISCHER MODULATION UNTER VERWENDUNG DIESER ELEMENTE

The invention provides carboxylate compounds of the following formula (A): wherein R is a group selected from C3-C20 alkyl, C3-C20 alkoxy and halogenated C3-C20 alkyl, X and Y are each, independently, a group selected from: -COO-,-OCO-, -CH2CH2-. CH2O-, OCH2-, -S-S-, and or a single bond, A and B ar...

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Bibliographische Detailangaben
Hauptverfasser: NAGAURA, SODEGAURAO, 32, AZA-TAKU 2-GOU, NAGAURA, MIYAKOSHI, SHOICHI, MITSUI PETRO, NISHIYAMA, SHINICHI, MITSUI PETRO, HAMA, HIDEO, MITSUI PETRO. IND. LT, DOI, NOBUYUKI, MITSUI PETRO. IND, YAMANAKA, TOORU, MITSUI PETRO. IND, SHIMIZU, TOYOJI, MITSUI PETRO. IND, GOU, NAGAURA, SODEGAURAO, TANIGUCHI, KATSUO, MITSUI PETRO. I
Format: Patent
Sprache:ger
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:The invention provides carboxylate compounds of the following formula (A): wherein R is a group selected from C3-C20 alkyl, C3-C20 alkoxy and halogenated C3-C20 alkyl, X and Y are each, independently, a group selected from: -COO-,-OCO-, -CH2CH2-. CH2O-, OCH2-, -S-S-, and or a single bond, A and B are each, independently, a group selected from and and R is an optically active group of 4 to 20 carbon atoms, the group containing at least one asymmetric carbon atom and being optionally substituted by one or more halogen atoms, and m and n are each an integer of 0 to 2; with the proviso that both m and n are not 0 at the same time. The compounds are employed in liquid crystal compositions. A liquid crystal element containing such a composition, a process for the preparation of the element and a method of light modulation involving use of the element are also disclosed.