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Title:
DISUBSTITUTED PHENANTHRENE AND THEIR USE IN LIQUID CRYSTAL MIXTURE
Document Type and Number:
Japanese Patent JP2001226301
Kind Code:
A
Abstract:

To provide a new component for using in nematic liquid crystal or cholesteric liquid crystal mixture having a preferable viscosity/clear point ratio and a positive dielectric anisotropy.

This compound is expressed by formula (I). R1-A-Z1 (I). In the formula: R1 is a 1-8C alkyl or 2-8C alkenyl, in the each case one of (non terminal) -CH2- groups may be substituted with -O- or-C(=O)O-, and/or one or two or more H may be substituted with F, A is phenanthrene-2,7-diyl or 9,10- dihydrophenanthrene-2,7-diyl, Z1 is F, OCHxF3-x or CHxF3-x in each case x is 0, 1 or 2, and OC2HzF5-z or C2HzF5-z in each case z is 0, 1, 2, 3 or 4, CH=CF2 or Cl excluding 2-fluoro-7-methoxy-phenanthrene.


Inventors:
DUBAL HANS-ROLF DR
HORNUNG BARBARA
SCHMIDT WOLFGANG DR
WINGEN RAINER
Application Number:
JP2001011351A
Publication Date:
August 21, 2001
Filing Date:
January 19, 2001
Export Citation:
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Assignee:
CLARIANT INT LTD
International Classes:
C07C22/08; C07C23/44; C07C25/22; C07C43/225; C09K19/32; G02F1/13; (IPC1-7): C07C23/44; C07C22/08; C07C43/225; C09K19/32; G02F1/13
Foreign References:
EP0987235A12000-03-22
EP0987235A12000-03-22
Attorney, Agent or Firm:
Kiyokazu