EP0110299A2
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EP
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Smectic liquid crystal compounds and liquid crystal compositions
Assignee: JNC Corp
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Filing: 1983-11-22
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Granted: —
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Expires: 2003-11-22
Abstract
Abstract The present invention is characterized by a smectic liquid crystal compound represented by the following formula: wherein R is selected from alkyl and alkoxy groups; m and n are natural numbers: and R * is an optically active group containing an asymmetric carbon atom, and a liquid crystal composition containing said compound as a component. This compound is excellent in optical stability and high-speed response.
Inventors
- 👤 Masato Isogai
- 👤 Shintarou Hattori
- 👤 Kishiro Iwasaki
- 👤 Teruo Kitamura
- 👤 Akio Muko
- 👤 Takashi Inukai
- 👤 Kenji Furukawa
- 👤 Shinichi Saito
- 👤 Kanetsugu Terashima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/2021; C09K19/12; C09K19/126; C09K19/22; C09K19/42; C09K19/48; C09K19/52; C09K19/60; C09K19/603
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
42 words
A smectic liquid crystal compound represented by the following formula: wherein R is selected from alkyl and alkoxy groups; X from and ; m and n are natural numbers; * and R is an optically active group containing an asymmetric carbon atom.
Claim 2
Dependent Claim
42 words
A smectic liquid crystal compound represented by the following formula: wherein R is selected from alkyl and alkoxy groups; X from and ; m and n are natural numbers; * and R is an optically active group containing an asymmetric carbon atom.
Claim 3
Dependent Claim
38 words
A smectic liquid crystal compound as set forth in Claim 1, wherein said R contains 20 or less carbon atoms and, in case m and n are 1 at the same time, contains 7 or more carbon atoms.
Claim 4
Dependent Claim
28 words
A smectic liquid crystal compound as set forth * in Claim 1, wherein said R is an optically active 2-methylbutyl group: ( * indicates an asymmetric carbon atom).
Claim 5
Dependent Claim
27 words
A smectic liquid crystal compound as set forth in Claim 1, wherein said R is an optically active 2-octyl group: ( * indicates an asymmetric carbon atom).
Claim 6
Dependent Claim
21 words
A smectic liquid crystal compound as set forth in Claim 1, wherein said m and n are each 1 or 2.
Claim 7
Dependent Claim
50 words
A liquid crystal composition containing as a component a smectic liquid crystal compound represented by the following formula: wherein R is selected from alkyl and alkoxy groups: X from - and m and n are natural numbers; * and R is an optically active group containing an asymmetric carbon atom.
Claim 8
Dependent Claim
50 words
A liquid crystal composition containing as a component a smectic liquid crystal compound represented by the following formula: wherein R is selected from alkyl and alkoxy groups: X from - and m and n are natural numbers; * and R is an optically active group containing an asymmetric carbon atom.
Claim 9
Dependent Claim
31 words
A liquid crystal composition as set forth in Claim 6, which comprises a compound represented by said general formula alone, or a mixture of said compound and a 2-methylbutyl p-alkyloxybenzylidene-p'- aminocinnamate.
Claim 10
Dependent Claim
38 words
A liquid crystal composition as set forth in * Claim 6, wherein said R is selected from an optically active 2-methylbutyl group: or an optically active 2-octyl group: ( * indicates an asymmetric carbon atom in each formula).
Claim 11
Dependent Claim
20 words
A liquid crystal composition as set forth in Claim 6, wherein said m and n are each 1 or 2.
Claim 12
Dependent Claim
37 words
A liquid crystal composition as set forth in Claim 6, wherein said R contains 20 or less carbon atoms and, in case m and n are 1 at the same time, contains 7 or more carbon atoms.
References Cited (Backward Citations)
No citation records indexed.
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