EP0131373A1
Expired / Lapsed
EP
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Liquid crystalline biphenyl derivatives and mixtures thereof
Assignee: JNC Corp
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Filing: 1984-06-04
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Granted: —
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Expires: 2004-06-04
Abstract
Abstract Chiral smectic compounds with a high response rate and superior as a ferroelectric liquid crystalline material are expressed by the formula (wherein X represents -CH 2 -, -O- or-CO-; n represents 0. 1 or 2: when X reoresents -CH 2 -. Y recresents R-. R-CO-. ROCO-, wherein R represents an alkyl group having 1 to 18 carbon atoms, and when X represents -0- or-CO-, Y represents R; and * represents a symbol indicating an optically active carbon atom) and can be used in chiral smectic mixtures.
Inventors
- 👤 Hiromichi Inoue
- 👤 Shinichi Saito
- 👤 Kanetsugu Terashima
- 👤 Takashi Inukai
- 👤 Kenji Furukawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 16:53
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/205; C07C43/2055; C07C45/00; C07C45/004; C07C49/00; C07C49/76; C07C49/84; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/12; C09K19/126; C09K19/20; C09K19/2007; C09K19/2021
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
58 words
A liquid crystalline compound expressed by the formula wherein X represents -CH 2 -, -O- or -CO-; n represents 0, 1 or 2; and when X represents -CH 2 -, Y represents -R-, R-CO-, ROCO-, or wherein R represents an alkyl group having 1 to 18 carbon atoms, and when X represents -O- or -CO-, Y represents R.
Claim 2
Dependent Claim
58 words
A liquid crystalline compound expressed by the formula wherein X represents -CH 2 -, -O- or -CO-; n represents 0, 1 or 2; and when X represents -CH 2 -, Y represents -R-, R-CO-, ROCO-, or wherein R represents an alkyl group having 1 to 18 carbon atoms, and when X represents -O- or -CO-, Y represents R.
Claim 3
Dependent Claim
10 words
A compound according to claim 1 wherein n is 1.
Claim 4
Dependent Claim
17 words
A compound according to claim 1 or 2 wherein X represents -CH 2 - and Y represents
Claim 5
Dependent Claim
17 words
A compound according to claim 1 or 2 wherein X represents -CH 2 - and Y represents
Claim 6
Dependent Claim
12 words
A compound according to claim 1 or 2 wherein Y represents R.
Claim 7
Dependent Claim
15 words
A compound according to any preceding claim in the form of an optically active isomer.
Claim 8
Dependent Claim
10 words
A compound according to claim 6 exhibiting SC * phase.
Claim 9
Dependent Claim
10 words
A compound according to claim 6 exhibiting SH * phase.
Claim 10
Dependent Claim
24 words
A chiral smectic liquid crystalline composition comprising at least two components, one or more of which is a compound according to any preceding claim.
Claim 11
Dependent Claim
19 words
A chiral smectic liquid crystalline composition consisting only of a plurality of compounds each as defined in claim 1.
References Cited (Backward Citations)
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