EP0278665A2
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EP
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2-Substituted-alkyl ether and liquid crystal composition
Assignee: JNC Corp
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Filing: 1988-02-02
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Granted: —
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Expires: 2008-02-02
Abstract
Abstract 2-Substituted-alkyl ethers having an optically active group and useful as components of ferroelectric liquid crystal compositions and liquid crystal compositions, have the formula: <CHEM> in which R<1> is a straight or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl group containing up to 18 carbon atoms; R<2> is a straight or branched C2-C15 alkyl group, <CHEM> are each <CHEM> (in which Y is a halogen atom or a methyl or methoxy group); X is a fluorine, chlorine or bromine atom or a group -OR<3> or -O @R<3>, (in which R<3> is a straight or branched C1-C10 alkyl group or a hydrogen atom); and * indicates an asymmetric carbon atom. o
Inventors
- 👤 Shinichi Saito
- 👤 Hiromichi Inoue
- 👤 Kazutoshi Miyazawa
- 👤 Kouji Ohno
- 👤 Makoto Ushioda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 02:15
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/205; C07C43/2055; C07C43/225; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/14; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07D239/28; C07D239/32; C07D239/34; C09; C09K; C09K19/00; C09K19/02; C09K19/0225; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/12; C09K19/126; C09K19/30; C09K19/3001; C09K19/3003; C09K19/34; C09K19/3441; C09K19/3444; C09K19/345; C09K19/3455; C09K19/3458; C09K19/3463; C09K19/42; C09K19/44; C09K19/52; C09K19/58; C09K19/586; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
2-substituted alkyl ethers of the formula in which R 1 is a straight or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl group containing up to 18 carbon atoms; R 2 is a straight or branched C 2 -C 15 alkyl group, are each (in which Y is a halogen atom or a methyl or methoxy group); X is a fluorine, chlorine or bromine atom or a group (in which R 3 is a straight or branched C,-C, o alkyl group or a hydrogen atom); and * indicates an asymmetric carbon atom.
Claim 2
Dependent Claim
92 words
2-substituted alkyl ethers of the formula in which R 1 is a straight or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl group containing up to 18 carbon atoms; R 2 is a straight or branched C 2 -C 15 alkyl group, are each (in which Y is a halogen atom or a methyl or methoxy group); X is a fluorine, chlorine or bromine atom or a group (in which R 3 is a straight or branched C,-C, o alkyl group or a hydrogen atom); and * indicates an asymmetric carbon atom.
Claim 3
Dependent Claim
20 words
2-Substituted-alkyl ethers according to claim 1 in which R 1 is a C 4 -C 14 alkyl or alkoxy group.
Claim 4
Dependent Claim
22 words
2-Substituted-alkyl ethers according to claim 1 or claim 2 in which X is a fluorine or chlorine atom or a methoxy group.
Claim 5
Dependent Claim
23 words
2-Substituted alkyl ethers according to any one of the preceding claims in which R 3 is a C 4 -C 6 alkyl group.
Claim 6
Dependent Claim
27 words
A liquid crystal composition comprising at least two components at least one of which is a 2- substituted-alkyl ether as claimed in one of the preceding claims.
Claim 7
Dependent Claim
13 words
A liquid crystal composition as claimed in claim 5 exhibiting chiral smectic phases.
Claim 8
Dependent Claim
13 words
A liquid crystal composition as claimed in claim 5 exhibiting chiral nematic phases.
Claim 9
Dependent Claim
36 words
A light switching element comprising a chiral smectic liquid crystal composition which comprises at least two components at least one of which is a 2-substituted-alkyl ether as claimed in any one of claims 1 - 4.
References Cited (Backward Citations)
No citation records indexed.
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