CYCLOHEXANE DERIVATIVES AND LIQUID-CRYSTAL COMPOSITIONS

Title:

CYCLOHEXANE DERIVATIVES AND LIQUID-CRYSTAL COMPOSITIONS

Document Type and Number:

WIPO Patent Application WO/1997/006124

Kind Code:

A1

Abstract:

Novel liquid-crystal compounds represented by general formula (1) and having a large value of permittivity anisotropy, a high voltage retention at service temperatures, a low threshold voltage, and improved compatibilities with other liquid-cristal materials at low temperatures, wherein R1 represents C1-C15 alkyl and one or more nonadjacent methylene (-CH2-) groups may be replaced by -O-, -S-, -CH=CH- or -CC-; L1, L2, L3 and L4 represent each independently H or F; X represents halogeno, CF3, OCF3, OCHF2, CN or NCS; and Z1 and Z2 represent each independently -(CH2)2-, -CH=CH-; -COO- or a covalent bond.

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Inventors:

KATO TAKASHI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
HACHIYA NORIHISA (JP)
NAKAGAWA ETSUO (JP)

Application Number:

PCT/JP1996/002253

Publication Date:

February 20, 1997

Filing Date:

August 08, 1996

Export Citation:

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Assignee:

CHISSO CORP (JP)
KATO TAKASHI (JP)
MATSUI SHUICHI (JP)
MIYAZAWA KAZUTOSHI (JP)
HACHIYA NORIHISA (JP)
NAKAGAWA ETSUO (JP)

International Classes:

C07C17/26; C07C17/266; C07C17/354; C07C22/08; C07C25/18; C07C25/24; C07C43/225; C07C45/41; C07C45/51; C07C47/238; C07C47/24; C07C69/753; C07C69/76; C07C69/88; C07C69/90; C07C255/50; C07C255/54; C07C255/55; C09K19/30; C09K19/42; C09K19/46; (IPC1-7): C07C22/08; C07C25/18; C07C25/24; C07C43/174; C07C43/176; C07C43/192; C07C43/225; C07C69/75; C07C69/773; C07C255/50; C07C255/54; C07C255/55; C07C323/07; C07C323/16; C07C323/56; C07C331/28; C09K19/30; C09K19/42

Foreign References:

JPH02233626A	1990-09-17
JPH05310605A	1993-11-22
JPH0640968A	1994-02-15

Other References: