Publication number: 20090065739
Abstract: A compound represented by formula (1): wherein R1 is hydrogen or alkyl having 1 to 20 carbons, in which in the alkyl, arbitrary —CH2— may be replaced by —O—, —S—, —COO—, —CH?CH— or —C?C—, and arbitrary hydrogen may be replaced by halogen or alkyl having 1 to 3 carbons; ring A1, ring A2, ring A3, ring A4 and ring A5 are each independently a benzene ring, a piperidine ring, a tetrahydropyrane ring or a dioxane ring, in which in the rings, arbitrary hydrogen may be replaced by halogen, alkyl having 1 to 3 carbons, alkoxy having 1 to 3 carbons or halogenated alkyl having 1 to 3 carbons, and —CH? may be replaced by —N?; Z1, Z2, Z4, Z5 and Z6 are each independently a single bond, —COO— or —CF2O—; Z3 is a single bond or —CF2O—, and in the case where Z3 is a single bond, ring A3 is a ring represented by formula (RG-5), or L1 and L2 are both fluorine, or at least one of Z1, Z2, Z4, Z5 and Z6 is —CF2O—; L1, L2, L3 and L4 are each independently hydrogen or halogen; X1 is hydrogen, halogen, —C?N, —N?C?S, —C?C—C?N, —S
Type:
Application
Filed:
August 21, 2008
Publication date:
March 12, 2009
Applicants:
CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
Inventors:
Yasuhiro HASEBA, Masayuki SAITO
Patent number: 7074464
Abstract: A compound represented by the formula (1). wherein Ra is alkyl having 1 to 10 carbon(s) and, in that alkyl, any of —CH2— may be replaced with —O—, —S—, —CO—, —CH?CH— or —C?C— or any of hydrogens may be replaced with halogen or —CN; A1, A2 and A3 are independently 1,4-cycolohexylene, 1,4-cyclohexenylene, 1,4-phenylene, naphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl or 1,4-bicyclo[2.2.2]octylene and, in such a ring, any —CH2— may be replaced with —O—, any —CH? may be replaced with —N? and any hydrogen may be replaced with halogen; Z1, Z2 and Z3 are independently a single bond, —(CH2)2—, —(CF2)2—, —COO—, —OCO—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —CH?CH—, —CF?CF—, —C?C—, —(CH2)4—, —(CH2)3O— or —O(CH2)3—; p and q are independently 0 or 1. Also provided is a liquid crystal composition containing the same and a liquid crystal display element containing the composition.
Type:
Grant
Filed:
May 13, 2004
Date of Patent:
July 11, 2006
Assignees:
Chisso Petrochemical Corporation, Chisso Corporation
Inventor:
Takashi Kato
Patent number: 6759103
Abstract: The invention relates to compounds of the formula (I) and also liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays:
in which
R1 is H, F, CF3, OCF3, OCF2H, OCFH2, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical,
R2 is H, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical,
M1 and M2 are —C(═O)O—, —OC(═O)—, —CH2O—, —OCH2—, —OCF2—, —CF2O—, —C≡C—, —CH2CH2—, —CF2CF2—, —CF═CF—C(═O)O— or a single bond
A1 and A2 are &agr;-1,4-diyl, unsubstituted or mono- or disubstituted by F; where &agr; is: phenylene cyclohexane, 1-cyclohexene,
or 1,3-dioxane-2,5-diyl
m and n are zero or 1; m+n=0 or 1
L1, L2, L3, L4 and L5 are H or F.
Type:
Grant
Filed:
September 12, 2002
Date of Patent:
July 6, 2004
Assignee:
Clariant Financi (BVI) Limited
Inventors:
Barbara Hornung, Wolfgang Schmidt, Rainer Wingen
Patent number: 6737125
Abstract: Compounds of the formula (I), liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays:
in which
R1 is H, F, CF3, OCF3, OCF2H, OCFH2, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical;
R2 is H, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical
M1 is —C(═O)O—, —OC(═O)—, —CH2O—, —OCH2—, —OCF2—, —CF2O—, —C≡C—, —CH2CH2—, —CF2CF2—, —CF═CFC(═O)O— or a single bond
M2 is —C(═O)O—, —OC(═O)—, —CH2O—, —OCH2—, —CH2CH2—, —CF2CF2— or a single bond;
A1 and A2 are &agr;-1,4-diyl, unsubstituted or mono- or disubstituted by F; where &agr; is: phenylene, cyclohexane, 1-cyclohexene or 1,3-dioxane-2,5-diyl;
m and n are zero or 1; m+n=0 or 1
L1, L2, L3, L4 and L5 are H or F.
Type:
Grant
Filed:
September 12, 2002
Date of Patent:
May 18, 2004
Assignee:
Clariant Finance (BVI) Limited
Inventors:
Barbara Hornung, Wolfgang Schmidt, Rainer Wingen
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