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EP0188222A2
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Novel liquid cristalline compounds having substituents
Assignee: Kawamura Institute of Chemical Research
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Filing: 1986-01-08
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Granted: —
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Expires: 2006-01-08
Abstract
Abstract A liquid crystalline compound represented by formula wherein R denotes an alkyl or alkoxy group having 1 to 20 carbon atoms, m and n are each 0 or 1, provided m and n are not 1 at the same time. X and Y each denote a hydrogen atom, a halogen atom or a nitro group, provided X and Y are not hydrogen atoms at the same time, and Q * denotes an optically active group having an asymmetric carbon atom and a linear or cyclic alkyl or alkenyl group which may be substituted by a halogen atom, or the like.
Inventors
- 👤 Sadao Takehara
- 👤 Toru Fujisawa
- 👤 Yoshi Arai
- 👤 Jitsuo Kurokawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 16:31
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/2021
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
100 words
A liquid crystalline compound represented by formula wherein R denotes an alkyl or alkoxy group having 1 to 20 carbon atoms, m and n are each 0 or 1, provided m and n are not 1 at the same time. X and Y each denote a hydrogen atom, a halogen atom or a nitro group, provided X and Y are not hydrogen atoms at the same time, and Q * denotes an optically active group having an asymmetric carbon atom and a linear or cyclic alkyl or alkenyl group which may be substituted by a halogen atom, or the like.
Claim 2
Dependent Claim
100 words
A liquid crystalline compound represented by formula wherein R denotes an alkyl or alkoxy group having 1 to 20 carbon atoms, m and n are each 0 or 1, provided m and n are not 1 at the same time. X and Y each denote a hydrogen atom, a halogen atom or a nitro group, provided X and Y are not hydrogen atoms at the same time, and Q * denotes an optically active group having an asymmetric carbon atom and a linear or cyclic alkyl or alkenyl group which may be substituted by a halogen atom, or the like.
Claim 3
Dependent Claim
24 words
A liquid crystalline compound of claim 1 wherein in formula (I) R is an alkyl or alkoxy group having 6 to 18 carbon atoms.
Claim 4
Dependent Claim
41 words
A liquid crystalline compound of claim 1 wherein in formula (I) X and Y are each a hydrogen atom, a fluorine atom, a chlorine atom or a nitro group, provided X and Y are not hydrogen atoms at the same time.
Claim 5
Dependent Claim
22 words
A liquid crystalline compound of claim 1 wherein in formula (I) R is an alkyl group and X is a hydrogen atom.
Claim 6
Dependent Claim
16 words
A liquid crystalline compound of claim 1 wherein in formula (I) R is an alkoxy group.
Claim 7
Dependent Claim
31 words
A liquid crystalline compound of claim 1 wherein in formula (I) Q * is a 2-methylbutyl group, a 1-methyl- alkyl group having 4 to 8 carbon atoms or a 2-chloropropyl group.
Claim 8
Dependent Claim
18 words
A liquid crystalline composition containing at least one of the compounds represented by formula (I) as a component.
Claim 9
Dependent Claim
18 words
A liquid crystalline composition containing at least one of the compounds represented by formula (I) as a component.
Claim 10
Dependent Claim
13 words
A liquid crystalline composition of claim 6 having a chiral smectic C phase.
Claim 11
Dependent Claim
26 words
A liquid crystalline display element formed by using any one of the compounds of claims 1 to 5 and the compositions of claims 6 and 7.
References Cited (Backward Citations)
No citation records indexed.
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