US4640796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,4-dipyrimidinylbenzene derivative
Assignee: JNC Corp
•
Filing: 1985-11-26
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Granted: 1987-02-03
•
Expires: 2005-11-26
Abstract
Abstract A novel 1,4-dipyrimidinylbenzene derivative which is useful as a component constituting a liquid crystal composition which is superior in properties and also physically and chemically stable, as a material for liquid crystal display elements, and a liquid crystal composition containing the same are provided, which derivative is expressed by the formula ##STR1## wherein X represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms, methylthio group or cyano group and Y represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms.
Inventors
- 👤 Naoyuki Yoshida
- 👤 Kisei Kitano
- 👤 Yoshito Furukawa
- 👤 Tetsuya Ogawa
- 👤 Shigeru Sugimori
- 👤 Yasuyuki Goto
- 👤 Toyoshiro Isoyama
- 👤 Kazunori Nigorikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:00
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07D239/28; C07D239/32; C07D239/34; C07D239/38; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3441; C09K19/345; C09K19/3458; C09K19/3466
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
47 words
A 1,4-dipyrimidinylbenzene derivative expressed by the formula ##STR8## wherein X represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms, methylthio group or cyano group and Y represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms.
Claim 2
Dependent Claim
47 words
A 1,4-dipyrimidinylbenzene derivative expressed by the formula ##STR8## wherein X represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms, methylthio group or cyano group and Y represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms.
Claim 3
Dependent Claim
6 words
A 2-[4-(2-alkylpyrimidin-5-yl)phenyl]-5-alkylpyrimidine according to claim 1.
Claim 4
Dependent Claim
6 words
A 2-[4-(2-alkylpyrimidin-5-yl)phenyl]-5-alkoxypyrimidine according to claim 1.
Claim 5
Dependent Claim
6 words
A 2-[4-(2-alkoxypyrimidin-5-yl)phenyl]-5-alkylpyrimidine according to claim 1.
Claim 6
Dependent Claim
6 words
A 2-[4-(2-alkoxypyrimidin-5-yl)phenyl]-5-alkoxypyrimidine according to claim 1.
Claim 7
Dependent Claim
6 words
A 2-[4-(2-methylthiopyrimidin-5-yl)phenyl]-5-alkylpyrimidine according to claim 1.
Claim 8
Dependent Claim
6 words
A 2-[4-(2-methylthiopyrimidin-5-yl)phenyl]-5-alkoxypyrimidine according to claim 1.
Claim 9
Dependent Claim
6 words
A 2-[4-(2-cyanopyrimidin-5-yl)phenyl]-5-alkylpyrimidine according to claim 1.
Claim 10
Dependent Claim
6 words
A 2-[4-(2-cyanopyrimidin-5-yl)phenyl]-5-alkoxypyrimidine according to claim 1.
Claim 11
Dependent Claim
23 words
A liquid crystal composition having at least two components at least one of which is a compound as set forth in claim 1.
References Cited (Backward Citations)
DE2257588A1
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US3997536A
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US4062798A
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US4533488A
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US4581155A
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US4585575A
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DE3411571A1
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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) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |