EP0327349A2
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Liquid crystal compounds
Assignee: Showa Shell Sekiyu KK
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Filing: 1989-02-01
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Granted: —
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Expires: 2009-02-01
Abstract
Abstract Liquid crystal compounds represented by the formula; in which Ra means an alkyl group of 1 - 20 carbon m atoms or an alkoxy group of 1 - 20 carbon atoms; Rb means an aliphatic alkyl group, a branched alkyl group or an aralkyl group respectively of 1 - 20 carbon atoms, an alkoxy group of 1 -20 carbon atoms, or an alkanoyl methyl group having 1 - 20 carbon atoms in the alkyl; X means Y means Z means a fluorinated alkyl or a fluorinated haloalkyl; m is an integer of from 1 to 3; n is an integer of from 0 to 2 where when n is 0, Y is a single bond; and * shows an optically active center, which have a larger spontaneous polarization, high speed of response and good orientation, and show tristable liquid crystal phase.
Inventors
- 👤 Yoshiichi Suzuki
- 👤 Hiroyuki Mogamiya
- 👤 Ichiro Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 12:54
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/02; C09K19/0266; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/2021
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
123 words
Liquid crystal compounds represented by the formula; in which Ra means an alkyl group of 1 - 20 carbon atoms or an alkoxy group of 1 - 20 carbon atoms; Rb means an aliphatic alkyl group, a branched alkyl group or an aralkyl group respectively of 1 - 20 carbon atoms, an alkoxy group of 1 - 20 carbon atoms, or an alkanoyl methyl group having 1 - 20 carbon atoms in the alkyl; X means Y means ; Z means a fluorinated alkyl or a fluorinated haloalkyl; m is an integer of from 1 to 3; n is an integer of from 0 to 2 where when n is 0, Y is a single bond; and * shows an optically active center.
Claim 2
Dependent Claim
123 words
Liquid crystal compounds represented by the formula; in which Ra means an alkyl group of 1 - 20 carbon atoms or an alkoxy group of 1 - 20 carbon atoms; Rb means an aliphatic alkyl group, a branched alkyl group or an aralkyl group respectively of 1 - 20 carbon atoms, an alkoxy group of 1 - 20 carbon atoms, or an alkanoyl methyl group having 1 - 20 carbon atoms in the alkyl; X means Y means ; Z means a fluorinated alkyl or a fluorinated haloalkyl; m is an integer of from 1 to 3; n is an integer of from 0 to 2 where when n is 0, Y is a single bond; and * shows an optically active center.
Claim 3
Dependent Claim
77 words
Liquid crystal compounds of the formula given in Claim 1, in which Ra means an alkyl group of 3 - 16 carbon atoms or an alkoxy group of 3 - 16 carbon atoms; Rb means an aliphatic alkyl group, a branched alkyl group or an aralkyl group respectively of 3 - -16 carbon atoms, an alkoxy group of 3 - 16 carbon atoms or an alkanoyl methyl group having 3 - 16 carbon atoms in the alkyl.
Claim 4
Dependent Claim
46 words
Liquid crystal compounds of the formula given in Claim 1, in which Z means any of CF 3 , CHF 2 CH 2 F, C 2 F 5 , CCIF 2 , CC 12 F, CCi3 CF 3 CC 12 and C 3 F 7 .
Claim 5
Dependent Claim
63 words
Liauid crvstal compounds of the formula aiven in Claim 1, in which means a residue of the following compound from which OH-group is removed; 1,1,1-trifluoro-2-C 3 -C 16 alkanol, 1,1-difluoro-2-C 3 -C 16 alkanol, 1-monofluoro-2-C 3 -C 16 alkanol, 1,1,1,2,2-pentafluoro-3-C 3 -C 16 alkanol, 1-monofluoro-1, -dichloro-2-C 3 -C 16 alkanol, 1,1,1-trichloro-2-C 3 -C 16 alkanol, 1, -difluoro-1-monochloro-2-C3-C 16 alkanol, 1,1,1-trifluoro-2-phenyl-2-ethanol, 1,1,1-trifluoro-3-phenyl-2-propanol or 1,1,1-trifluoro-4-phenyl-2-butanol
Claim 6
Dependent Claim
37 words
Liquid crystal compounds of the formula given in Claim 1, in which means a residue of the following compound from which OH-group is removed; 1,1,1-trifluoro-3-pentanoyl-2-propanol, 1,1,1-trifluoro-3-hexanoyl-2-propanol, 1,1,1-trifluoro-3-heptanoyl-2-propanol, 1,1,1-trifluoro-3-octanoyl-2-propanol, 1,1,1-trifluoro-3-nonanoyl-2-propanol, 1,1,1-trifluoro-3-decanoyl-2-propanol, 1,1,1-trifluoro-3-undecanoyl-2-propanol, 1,1,1-trifluoro-3-dodecanoyl-2-propanol, 1,1,1-trifluoro-3-(3-methylbutanoyl)-2-propanol, 1,1,1-trifluoro-3-(3-phenylpropanoyl)-2-propanol, 1,1,1-trifluoro-3-(2-phenylethanoyl)-2-propanol or 1,1,1-trifluoro-3-benzoyl-2-propanol
Claim 7
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-2-octyloxycarbonyl)-phenyl-4'-n-hexyloxybiphenyl-4-carboxylate.
Claim 8
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-2-octyloxycarbonyl)-phenyl-4'-n-octyloxybiphenyl-4-carboxylate.
Claim 9
Dependent Claim
14 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1 -trifluoro-2-octyloxycarbonyl)-phenyl-4'-n-nonyloxybiphenyl-4-carboxylate.
Claim 10
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-2-octyloxycarbonyl)-phenyl-4'-n-decyloxybiphenyl-4-carboxylate.
Claim 11
Dependent Claim
12 words
Liquid crystal compounds of the formula in Claim 1, which are 4-(1,1,1-trifluoro-2-octyloxycarbonyl)phenyl-4'-n-undecyloxybiphenyl-4-carboxylate
Claim 12
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-2-octyloxycarbonyl)-phenyl-4'-n-dodecyloxybiphenyl-4-carboxylate.
Claim 13
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-3-heptanoyl-2-propyloxycarbonyl)-phenyl-4-n-octyloxybenzoate.
Claim 14
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-n-dodecyloxy-4'-biphenyl-4-(1,1,1-trifluoro-2-octylcarbonyl)benzoate.
Claim 15
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-2-octyloxycarbonyl)-phenyl-4'-n-octylbiphenyl-4-carboxylate.
Claim 16
Dependent Claim
14 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-2-docyloxycar- bonyl)-phenyl-4'-n-octyloxybiphenyl-4-carboxylate.
Claim 17
Dependent Claim
14 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1,2,2-pentafluoro-3-unde- cyloxycarbonyl)-phenyl-4'-n-octyloxybiphenyl-4-carboxylate.
Claim 18
Dependent Claim
15 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-n-octylbiphenyl-4-(1,1,1-triflu- oro-2-octyloxycarbonyl) benzoate.
Claim 19
Dependent Claim
13 words
Liquid crystal compounds of the formula given in Claim 1, which are 4-(1,1,1-trifluoro-2-octyloxycarbonyl)-biphenyl-4-n-octylbenzoate.
References Cited (Backward Citations)
No citation records indexed.
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