Title:
CHLOROBENZENE DERIVATIVE AND LIQUID-CRYSTAL COMPOSITION CONTAINING THE SAME
Document Type and Number:
WIPO Patent Application WO/1996/009272
Kind Code:
A1
Abstract:
A tetracyclic chlorobenzene derivative represented by general formula (I) and being suitable for use in active-matrix display elements and a liquid-crystal composition containing the same (wherein each of rings A, B and C independently represents trans-1,4-cyclohexylene, etc.; each of Z1, Z2 and Z3 represents -CH2CH2- or a covalent bond provided that at least one thereof is -CH2CH2-; each of L1 and L2 represents H, etc.; and R represents C1-C10 alkyl, etc.; provided that the ring A is 1,4-phenylene when Z1 and Z3 are covalent bonds and Z2 is -CH2CH2- and is trans-1,4-cyclohexylene when Z1 and Z2 are covalent bonds and Z3 is -CH2CH2- and that the rings B and C cannot be 1,4-phenylene). This compound has large values of refractive index and permittivity anisotropies, exhibits a liquid-crystal phase in a wide temperature range, is excellent in low-temperature compatibility with known liquid-crystal compounds and provides a liquid-crystal composition suitable of, especially, TFT drive.
Inventors:
MATSUI SHUICHI (JP)
KONDO TOMOYUKI (JP)
MIYAZAWA KAZUTOSHI (JP)
GOTO YASUYUKI (JP)
NAKAGAWA ETSUO (JP)
SAWADA SHINICHI (JP)
KONDO TOMOYUKI (JP)
MIYAZAWA KAZUTOSHI (JP)
GOTO YASUYUKI (JP)
NAKAGAWA ETSUO (JP)
SAWADA SHINICHI (JP)
Application Number:
PCT/JP1995/001917
Publication Date:
March 28, 1996
Filing Date:
September 22, 1995
Export Citation:
Assignee:
CHISSO CORP (JP)
MATSUI SHUICHI (JP)
KONDO TOMOYUKI (JP)
MIYAZAWA KAZUTOSHI (JP)
GOTO YASUYUKI (JP)
NAKAGAWA ETSUO (JP)
SAWADA SHINICHI (JP)
MATSUI SHUICHI (JP)
KONDO TOMOYUKI (JP)
MIYAZAWA KAZUTOSHI (JP)
GOTO YASUYUKI (JP)
NAKAGAWA ETSUO (JP)
SAWADA SHINICHI (JP)
International Classes:
C07C17/12; C07C17/26; C07C17/354; C07C25/18; C07C45/29; C07C45/59; C07C45/62; C07C45/68; C09K19/14; C09K19/30; C09K19/42; G02F1/13; (IPC1-7): C07C25/18; C09K19/14; C09K19/30; C09K19/42; G02F1/13
Foreign References:
EP0449288A2 | 1991-10-02 | |||
JPH04501576A | 1992-03-19 | |||
JPH05279279A | 1993-10-26 |
Other References:
See also references of EP 0785179A4
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