EP0197677A2
Expired / Lapsed
EP
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Halogen-containing, optically active liquid crystal compound and liquid crystal composition containing same
Assignee: JNC Corp
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Filing: 1986-03-14
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Granted: —
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Expires: 2006-03-14
Abstract
Abstract A novel optically active liquid crystal compound and a liquid crystal composition containing the same are provided, which compound is expressed by the formula wherein R 1 is alkyl or alkoxy of 4 - 18 C; R 2 is alkyl, alkoxy, acyl or alkoxymethyl of 4 - 18C; but either one of R 1 or R 2 is an optically active group; either one of X 1 or X 2 is halogen atom and the other is H; m and n each are 0 or 1 and m+n is 0 or 1.
Inventors
- 👤 Kazutoshi Miyazawa
- 👤 Hiromichi Inoue
- 👤 Shinichi Saito
- 👤 Kanetsugu Nokendo-Kopo Terashima
- 👤 Mitsuyoshi Ichihashi
- 👤 Takashi Inukai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 17:41
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/42; C09K19/46; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/2021
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
An optically active liquid crystal compound expressed by the formula wherein R 1 represents an alkyl group or an alkoxy group each of 4 to 18 carbon atoms; R 2 represents an alkyl group, an alkoxy group, an acyl group or an alkoxycarbonyl group each of 4 to 18 carbon atoms; but either one of R 1 or R 2 is an optically active group; either one of X 1 or X 2 represents a halogen atom and the other represents hydrogen atom; m and n each represent 0 or 1 and m+n is 0 or 1.
Claim 2
Dependent Claim
97 words
An optically active liquid crystal compound expressed by the formula wherein R 1 represents an alkyl group or an alkoxy group each of 4 to 18 carbon atoms; R 2 represents an alkyl group, an alkoxy group, an acyl group or an alkoxycarbonyl group each of 4 to 18 carbon atoms; but either one of R 1 or R 2 is an optically active group; either one of X 1 or X 2 represents a halogen atom and the other represents hydrogen atom; m and n each represent 0 or 1 and m+n is 0 or 1.
Claim 3
Dependent Claim
68 words
An optically active liquid crystal compound according to claim 1, expressed by the formula (I a ) wherein R 3 * represents an optically active alkyl group of 4 to 18 carbon atoms; R 4 represents an alkyl group, an alkoxy group, an acyl group or an alkoxycarbonyl group each of 4 to 18 carbon atoms; X 1 represents a halogen atom; and n represents 0 or 1.
Claim 4
Dependent Claim
30 words
An optically active liquid crystal compound according to claim 1, expressed by the formula (I b ) wherein R 3 *, R 4 and X 1 are as defined above.
Claim 5
Dependent Claim
57 words
An optically active liquid crystal compound according to claim 1, expressed by the formula (I c ) wherein R 5 represents an alkyl group of 4 to 18 carbon atoms; R6* represents an optically active alkyl, alkoxy, acyl or alkoxycarbonyl group each of 4 to 18 carbon atoms; and X 1 and n are as defined above.
Claim 6
Dependent Claim
31 words
An optically active liquid crystal compound according to claim 1, expressed by the formula (I d ) wherein R 5 , R 6 * and X 1 are as defined above.
Claim 7
Dependent Claim
46 words
An optically active liquid crystal compound according to claim 1, expressed by the formula (I e ) wherein R 7 * represents an optically active alkyl group of 4 to 18 carbon atoms; X 2 represents a halogen atom; and R 5 is as defined above.
Claim 8
Dependent Claim
44 words
An optically active liquid crystal compound according to claim 1, expressed by the formula (If) wherein R 8 represents an alkyl group or an alkoxy group each of 4 to 18 carbon atoms; and R 7 * and X 2 are as defined above.
Claim 9
Dependent Claim
44 words
An optically active liquid crystal compound according to claim 1, expressed by the formula (I g ) wherein R 8 represents an alkyl group or an alkoxy group each of 4 to 18 carbon atoms, and R* and X 2 are as defined above.
Claim 10
Dependent Claim
30 words
A liquid crystal composition having at least two components at least one of which is an optically active compound expressed by the formula (I) as set forth in claim 1.
Claim 11
Dependent Claim
34 words
A chiral smectic liquid crystal composition having at least two components at least one of which is an optically active liquid crystal compound expressed by the formula (I) as set forth in claim 1.
References Cited (Backward Citations)
No citation records indexed.
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