3-substituted biphenyl compound

Assignee: JNC Corp

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Filing: 1987-04-27

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Granted: 1989-04-04

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Expires: 2007-04-27

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Abstract

Abstract A novel 3-substituted biphenyl compound useful as a component of chiral liquid crystal compositions useful for light-switching elements by the use of ferroelectric liquid crystals; a chiral liquid crystal composition containing the compound; and a light-switching element utilizing the composition are provided, which compound is expressed by the formula ##STR1## wherein either one of R 1 or R 2 represents an alkyl group of 4 to 18 carbon atoms having a methyl branch and the other thereof represents an alkyl group of 2 to 18 carbon atoms; X represents a halogen atom of F, Cl or Br or cyano group; and l represents 0 to 1.

Inventors

👤 Kazutoshi Miyazawa
👤 Takashi Inukai
👤 Hiromichi Inoue
👤 Shinichi Saito
👤 Kouji Ohno

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-30 17:25

CPC Classifications

C; C07; C07C; C07C255/00; C07C43/00; C07C43/02; C07C43/20; C07C43/225; C07C45/00; C07C45/45; C07C45/46; C07C49/00; C07C49/76; C07C49/84; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/12; C09K19/126

Claims Analysis

Total Claims: 3

Claim 1

Independent Claim 32 words

A chiral smectic c liquid crystal compound selected from the group consisting of 4'-(6-methyl-octyloxy)-3'-fluoro-4-pentylbiphenyl, 4'-(6-methyl-octyloxy)-3'-fluoro-4-octylbiphenyl, 4'-(7-methyl-nonyloxy)-3'-fluoro-4-octylbiphenyl, 4'-(7-methyl-nonyloxy)-3'-fluoro-4-decylbiphenyl, 4'-(8-methyl-decyloxy)-3'-fluoro-4-pentylbiphenyl, 4'-(8-methyl-decyloxy)-3'-fluoro-4-dodecylbiphenyl, 4'-decyloxy-3'-fluoro-4-(6-methyl-octyl)-biphenyl, 4'-dodecyloxy-3'-fluoro-4-(6-methyl-octyl)-biphenyl, ' -(6-methyl-octyloxy)-3'-fluoro-4-nonanoyl-biphenyl, 4'-(6-methyl-octyloxy)-3'-bromo-4-decanoyl-biphenyl, 4'-(6-methyl-octyloxy)-3'-cyano-4-decanoyl-biphenyl, 4'-(6-methyl-octyloxy)-3'-fluoro-4-dodecanoyl-biphenyl, 4'-(6-methyl-octyloxy)-3'-chloro-4-dodecanoyl-biphenyl, 4'-(8-methyl-decyloxy)-3'-fluoro-4-dodecanoyl-biphenyl, 4'-octyloxyl-3'-fluoro-4-(6-methyl-octanoyl)-biphenyl, 4'-decycloxy-3'-fluoro-4-(6-methyl-octanoyl)-biphenyl, and 4'-dodecyloxy-3'-fluoro-4-(6-methyl-octanoyl)-biphenyl.

Claim 2

Dependent Claim 32 words

Claim 3

Dependent Claim 25 words

A chiral smectic C liquid crystal composition having at least two components at least one of which is a compound set forth in claim 1.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-04-03	1992-10-03	1993-04-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-04-03	1996-10-03	1997-04-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-04-03	2000-10-03	2001-04-04	$7700.00	Window Closed / Lapsed

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