US5120468A
Expired / Lapsed
US
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2-substituted-alkyl ether and liquid crystal composition
Assignee: JNC Corp
•
Filing: 1990-08-06
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Granted: 1992-06-09
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Expires: 2010-08-06
Abstract
Abstract A 2-substituted-alkyl ether having an optically active group and useful as a component of ferroelectric liquid crystal compositions and a liquid crystal composition containing the same are provided, which 2-substituted-alkyl ether is expressed by the formula ##STR1## wherein R 1 represents a linear or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl of 1 to 18 C; R 2 represents a linear or branched alkyl of 2 to 15 C; ##STR2## each independently represents ##STR3## wherein Y represents cyano, halogen, methyl or methoxy; X represents --OR 3 , ##STR4## F, Cl or Br wherein R 3 represents a linear or branched alkyl group of 1 to 10 C of H; and * indicates asymmetric C.
Inventors
- 👤 Shinichi Saito
- 👤 Hiromichi Inoue
- 👤 Kazutoshi Miyazawa
- 👤 Kouji Ohno
- 👤 Makoto Ushioda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:12
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: 10
Claim 1
Independent Claim
50 words
A 2-substituted-alkyl ether expressed by the formula ##STR61## wherein R 1 represents linear or branched chain alkyl or alkoxy, each of 5 to 12 carbon atoms, R 2 represents linear or branched chain alkyl of 4 to 12 carbon atoms; ##STR62## represents ##STR63## and * indicates an asymmetric carbon atom.
Claim 2
Dependent Claim
50 words
A 2-substituted-alkyl ether expressed by the formula ##STR61## wherein R 1 represents linear or branched chain alkyl or alkoxy, each of 5 to 12 carbon atoms, R 2 represents linear or branched chain alkyl of 4 to 12 carbon atoms; ##STR62## represents ##STR63## and * indicates an asymmetric carbon atom.
Claim 3
Dependent Claim
14 words
A 2-substituted-alkyl ether according to claim 1, wherein R 1 represents the alkyl group.
Claim 4
Dependent Claim
12 words
A 2-substituted-alkyl ether according to claim 1, wherein R 2 is hexyl.
Claim 5
Dependent Claim
12 words
A 2-substituted-alkyl ether according to claim 1, wherein R 2 is octyl.
Claim 6
Dependent Claim
12 words
A 2-substituted-alkyl ether according to claim 1, wherein R 2 is isobutyl.
Claim 7
Dependent Claim
14 words
A 2-substituted-alkyl ether according to claim 1, wherein R 1 represents the alkoxy group.
Claim 8
Dependent Claim
24 words
A liquid crystal composition comprising at least two components, at least one of which is a 2-substituted-alkyl ehter as set forth in claim 1.
Claim 9
Dependent Claim
28 words
A liquid crystal composition comprising at least two components, at least one of which is a 2-substituted-alkyl ehter as set forth in claim 1, exhibiting chiral smectic phases.
Claim 10
Dependent Claim
28 words
A liquid crystal composition comprising at least two components, at least one of which is a 2-substituted-alkyl ehter as set forth in claim 1, exhibiting chiral nematic phases.
References Cited (Backward Citations)
US4613209A
Cited
US4576732A
Cited
US4614609A
Cited
US4676925A
Cited
US4725688A
Cited
US4744918A
Cited
US4654162A
Cited
DE3515373A1
Cited
US4834904A
Cited
US4798680A
Cited
JPS62228036A
Cited
US4784792A
Cited
US4765924A
Cited
JPS6322042A
Cited
US4867903A
Cited
EP0255219A2
Cited
JPS6351377A
Cited
US4904410A
Cited
US4892393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-09 | 1995-12-09 | 1996-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-09 | 1999-12-09 | 2000-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-09 | 2003-12-09 | 2004-06-09 | $7700.00 | Window Closed / Lapsed |