Title:
ACETYLENE DERIVATIVES, AND LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE EACH COMPRISING THE SAME
Document Type and Number:
WIPO Patent Application WO/1998/040336
Kind Code:
A1
Abstract:
Novel liquid crystal compounds having a particularly large refractive index anisotropy value and an excellent compatibility with other liquid crystals. The compounds are represented by general formula (1): wherein H�1?, H�2?, H�3?, H�4?, H�5?, H�6?, H�7?, H�8?, H�9?, H�10?, H�11? and H�12? each independently represent H, F, or Cl, provided that at least one of H�1?, H�2?, H�3?, H�4?, H�9?, H�10?, H�11? and H�12? represents F or Cl; R�1? represents a C�1-20? alkyl group, provided that the methylene group(s) in this group may be replaced by -O-, -S-, -Si-, -CH=CH- or -Cu$m(Z)C- and that any of the H atoms in this group may be replaced by a halogen atom; and Y�1? represents R�1?, F, Cl, Br, I, or a cyano group.
Inventors:
MIYAZAWA KAZUTOSHI (JP)
KOGA KOUJI (JP)
MATSUI SHUICHI (JP)
HACHIYA NORIHISA (JP)
NAKAGAWA ETSUO (JP)
KOGA KOUJI (JP)
MATSUI SHUICHI (JP)
HACHIYA NORIHISA (JP)
NAKAGAWA ETSUO (JP)
Application Number:
PCT/JP1997/000795
Publication Date:
September 17, 1998
Filing Date:
March 13, 1997
Export Citation:
Assignee:
CHISSO CORP (JP)
MIYAZAWA KAZUTOSHI (JP)
KOGA KOUJI (JP)
MATSUI SHUICHI (JP)
HACHIYA NORIHISA (JP)
NAKAGAWA ETSUO (JP)
MIYAZAWA KAZUTOSHI (JP)
KOGA KOUJI (JP)
MATSUI SHUICHI (JP)
HACHIYA NORIHISA (JP)
NAKAGAWA ETSUO (JP)
International Classes:
C07C25/24; C09K19/18; C09K19/30; C09K19/42; G02F1/13; (IPC1-7): C07C25/24; C07C43/176; C07C43/225; C07C323/01; C07F7/12; C09K19/18; G02F1/13
Foreign References:
| JPH04103554A | 1992-04-06 | |||
| JPH06316541A | 1994-11-15 |
Other References:
YUELIAN XU et al., "Synthesis and Characterization of Octafluorinated 1,2-(4,4'-Dialkoxyaryl)Acetylene Monomers and 1,4-bis[(4',4'-Dialkoxyphenyl)-Ethynyl]Benz ene Dimers", J. MATERIALS CHEMISTRY, (1995), 5(2), 219-221.
COLEEN PUGH et al., "Phase Transfer Pd(0)/Cu(I) Catalyzed Polymerization Reactions 7", LIQUID CRYSTALS, (1991), 10(2), 229-242.
See also references of EP 0968988A4
COLEEN PUGH et al., "Phase Transfer Pd(0)/Cu(I) Catalyzed Polymerization Reactions 7", LIQUID CRYSTALS, (1991), 10(2), 229-242.
See also references of EP 0968988A4
Attorney, Agent or Firm:
Funahashi, Eiko (Noahx Building 16-4, Nishishinbashi 1-chom, Minato-ku Tokyo 105, JP)
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