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US5120468A
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2-substituted-alkyl ether and liquid crystal composition
Assignee: JNC Corp
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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 22:34
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.
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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) | 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 |