Title:
FLUOROALKYLATED LIQUID-CRYSTAL COMPOUNDS, LIQUID-CRYSTAL COMPOSITIONS, AND LIQUID-CRYSTAL DISPLAY ELEMENTS
Document Type and Number:
WIPO Patent Application WO/1998/013324
Kind Code:
A1
Abstract:
Liquid-crystal compounds which exhibit an extremely high voltage retention scarcely dependent on the temperature and a large $g(D)n value and are excellent in the compatibility with other liquid-crystal materials particularly at low temperature; liquid-crystal compositions containing them; and liquid-crystal display elements made by using the compositions. The liquid-crystal compounds are represented by general formula (1), wherein R is C�2?-C�20? alkyl in which one to three arbitrary hydrogen atoms are replaced by fluorine atoms, alkoxy or alkoxyalkyl; X is halogeno or C�1?-C�20? alkyl in which arbitrary methylene groups (-CH�2?-) not adjacent to each other may be replaced by oxygen atoms or one or more arbitrary hydrogen atoms may be replaced by fluorine atoms; Z�1?, Z�2? and Z�3? are each independently -(CH�2?)�2?-, -(CH�2?)�4?-, -CH�2?O-, -OCH�2?-, -(CH�2?)�3?O-, -O(CH�2?)�3?- or a covalent bond; Y�1? to Y�16? are each independently hydrogen or fluoro, provided at least two of them are each fluoro; and m is 0 or 1, with the proviso that the atoms constituting the compounds may be each replaced by an isotope thereof.
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Inventors:
KONDOU TOMOYUKI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
TAKEUCHI HIROYUKI (JP)
KUBO YASUHIRO (JP)
TAKESHITA FUSAYUKI (JP)
NAKAGAWA ETSUO (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
TAKEUCHI HIROYUKI (JP)
KUBO YASUHIRO (JP)
TAKESHITA FUSAYUKI (JP)
NAKAGAWA ETSUO (JP)
Application Number:
PCT/JP1997/003404
Publication Date:
April 02, 1998
Filing Date:
September 25, 1997
Export Citation:
Assignee:
CHISSO CORP (JP)
KONDO TOMOYUKI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
TAKEUCHI HIROYUKI (JP)
KUBO YASUHIRO (JP)
TAKESHITA FUSAYUKI (JP)
NAKAGAWA ETSUO (JP)
KONDO TOMOYUKI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
TAKEUCHI HIROYUKI (JP)
KUBO YASUHIRO (JP)
TAKESHITA FUSAYUKI (JP)
NAKAGAWA ETSUO (JP)
International Classes:
G02F1/13; C07C17/12; C07C17/26; C07C17/361; C07C25/18; C07C43/174; C07C43/225; C09K19/12; C09K19/14; C09K19/20; C09K19/44; C09K19/46; (IPC1-7): C07C25/18; C07C43/174; C07C43/225; C09K19/12; C09K19/14; C09K19/42; G02F1/13
Foreign References:
| JPH02501311A | 1990-05-10 | |||
| JPH03500413A | 1991-01-31 |
Other References:
CRYST. LIQ. CRYST., 1978, Vol. 47, TITOV V.V. et al., "Synthesis and Mesomorphism of Aryl P-Fluoralkyl(Alkoxy)Benzoates", pages 1-5.
See also references of EP 0950651A4
See also references of EP 0950651A4
Attorney, Agent or Firm:
Funahashi, Eiko (3rd floor 16-4, Nishishinbashi 1-chom, Minato-ku Tokyo 105, JP)
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