Liquid crystal compounds with optical activities having high helical twisting power, method for preparing the same, and liquid crystal composition containing the compounds

The invention relates to the development of the additives for liquid crystal compounds with optical activities having high helical twisting power. The structure of the additives for the liquid crystal compounds is the ester compound that has the natural occurring organic multi-ring alcohols with opt...

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Bibliographische Detailangaben
Hauptverfasser:	CHENG, KUNG-LUNG, LEE, DAO-HUNG, CHEN, DING-JEN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES APPARATUS THEREFOR CHEMISTRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DYES FREQUENCY-CHANGING GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC CHEMISTRY PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The invention relates to the development of the additives for liquid crystal compounds with optical activities having high helical twisting power. The structure of the additives for the liquid crystal compounds is the ester compound that has the natural occurring organic multi-ring alcohols with optical activities. Terpenol, Borneo, Cinchonidine, or Quinine as starting materials is reacted with another reactants whose core structures are similar with the liquid crystal compounds to undergo esterification reaction. The additives are highly dissolved with nematic host and the liquid crystal compounds the additives can get larger helical twisting power and better light stability.