Title:
ALKENYL COMPOUNDS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES
Document Type and Number:
WIPO Patent Application WO/1997/035822
Kind Code:
A1
Abstract:
Liquid crystal compounds which exhibit a liquid crystal phase in a wide temperature range and are lowly viscous and excellent in chemical stability and compatibility with other liquid crystal materials; liquid crystal compositions containing the compounds; and liquid crystal display devices made by using the compositions. The above liquid crystal compounds are represented by the general formula (1): Ra-A1-Z1-A2-Z2-A3-Z3-A4-Rb wherein Ra is alkenyl or alkyl wherein one or more methylene groups may be replaced by -O-, -S-, -CO-, -CC- and so on; Rb is Ra, halogeno or cyano, with the proviso that at least either of Ra and Rb must be a group containing a double bond; A1, A2, A3 and A4 are each independently trans-1,4-cyclohexylene, 1,4-phenylene, cyclohexenediyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl or 1,3-dioxane-2,5-diyl; and Z1, Z2 and Z3 are each independently C2-C4 alkenylene, -(CH2)2-, -COO-, -CC-, -CH2O-, a single bond or the like, at least one of Z1, Z2 and Z3 being C2-C4 alkenylene.
Inventors:
KONDO TOMOYUKI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
SEKIGUCHI YASUKO (JP)
NAKAGAWA ETSUO (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
SEKIGUCHI YASUKO (JP)
NAKAGAWA ETSUO (JP)
Application Number:
PCT/JP1997/001047
Publication Date:
October 02, 1997
Filing Date:
March 27, 1997
Export Citation:
Assignee:
CHISSO CORP (JP)
KONDO TOMOYUKI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
SEKIGUCHI YASUKO (JP)
NAKAGAWA ETSUO (JP)
KONDO TOMOYUKI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
SEKIGUCHI YASUKO (JP)
NAKAGAWA ETSUO (JP)
International Classes:
C07C43/176; C07C43/188; C07C43/225; C07C69/753; C07C69/76; C07C69/773; C09K19/04; C09K19/16; C09K19/30; C09K19/34; C09K19/42; C09K19/44; C09K19/46; (IPC1-7): C07C13/28; C07C15/50; C07C22/00; C07C25/24; C07C43/14; C07C43/188; C07C43/215; C07C69/75; C07C69/76; C07C321/10; C07D213/04; C07D239/26; C07D239/34; C07D319/06; C09K19/08; G02F1/13
Foreign References:
| JPH059297A | 1993-01-19 | |||
| GB1124913A | 1968-08-21 | |||
| JPS57185231A | 1982-11-15 | |||
| JPH08325173A | 1996-12-10 | |||
| JPS55102658A | 1980-08-06 |
Other References:
ORGANOMETALLICS, (1994), 13(2), HAROLD H. FOX et al., "Coupling of Terminal Olefins by Molybdenum (VI) Imido Alkylidene Complexes", pages 635-639.
See also references of EP 0893421A4
See also references of EP 0893421A4
Download PDF:
Previous Patent: PROCESS FOR THE MANUFACTURE OF FLUORINE-SUBSTITUTED HYDROCARBONS
Next Patent: METHOD FOR THE PREPARATION OF DIALKYL ETHERS
Next Patent: METHOD FOR THE PREPARATION OF DIALKYL ETHERS