US4824596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(trans-4-alkylcyclohexyl)-5-alkoxypyrimidines
Assignee: JNC Corp
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Filing: 1987-07-09
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Granted: 1989-04-25
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Expires: 2007-07-09
Abstract
Abstract Novel compounds which, when used as a component of nematic liquid crystal compositions, can improve the characteristics of Δn and viscosity of the resulting liquid crystal compositions and also does not greatly adversely affect other characteristics thereof, and a liquid crystal composition containing such a compound are provided, which compound is expressed by the formula ##STR1## wherein R 1 and R 2 each independently represent an alkyl group of 1 to 12 carbon atoms.
Inventors
- 👤 Kisei Kitano
- 👤 Yasuyuki Goto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:43
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3441; C09K19/345; C09K19/3458; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
26 words
A 2-(trans-4-alkylcyclohexyl)-5-alkoxypyrimidine expressed by the formula (I) ##STR5## wherein R 1 and R 2 each independently represent an alkyl group of 1 to 12 carbon atoms.
Claim 2
Dependent Claim
26 words
A 2-(trans-4-alkylcyclohexyl)-5-alkoxypyrimidine expressed by the formula (I) ##STR5## wherein R 1 and R 2 each independently represent an alkyl group of 1 to 12 carbon atoms.
Claim 3
Dependent Claim
33 words
The 2-(Trans-4-alkylcyclohexyl)-5-alkoxypyrimidine according to claim 1 wherein R 1 is n-C 5 H 11 and R 2 is selected from CH 3 , C 2 H 5 and n-C 4 H 9 .
Claim 4
Dependent Claim
43 words
The 2-(Trans-4-alkylcyclohexyl)-5-alkoxypyrimidine according to claim 1 wherein R 1 is C 2 H 5 and R 2 is selected from CH 3 , C 2 H 5 , n-C 3 H 7 , n-C 4 H 9 and n-C 5 H 11 .
Claim 5
Dependent Claim
43 words
The 2-(Trans-4-alkylcyclohexyl)-5-alkoxypyrimidine according to claim 1 wherein R 1 is n-C 3 H 7 and R 2 is selected from CH 3 , C 2 H 5 , n-C 4 H 9 , n-C 6 H 13 and n-C 7 H 15 .
Claim 6
Dependent Claim
21 words
The 2-(Trans-4-alkylcyclohexyl)-5-alkoxypyrimidine according to claim 1 wherein R 1 is n-C 7 H 15 and R 2 is CH 3 .
Claim 7
Dependent Claim
41 words
A liquid crystal composition comprising at least one liquid crystal compound and at least one pyrimidine compound expressed by the formula (I) ##STR6## wherein R 1 and R 2 each independently represent an alkyl group of 1 to 12 carbon atoms.
Claim 8
Dependent Claim
41 words
A liquid crystal composition comprising at least one liquid crystal compound and at least one pyrimidine compound expressed by the formula (I) ##STR6## wherein R 1 and R 2 each independently represent an alkyl group of 1 to 12 carbon atoms.
Claim 9
Dependent Claim
35 words
A liquid crystal composition according to claim 6 wherein R 1 is n-C 5 H 11 and R 2 is selected from CH 3 , C 2 H 5 and n-C 4 H 9 .
Claim 10
Dependent Claim
45 words
A liquid crystal composition according to claim 6 wherein R 1 is C 2 H 5 and R 2 is selected from CH 3 , C 2 H 5 , n-C 3 H 7 , n-C 4 H 9 and n-C 5 H 11 .
Claim 11
Dependent Claim
45 words
A liquid crystal composition according to claim 6 wherein R 1 is n-C 3 H 7 and R 2 is selected from CH 3 , C 2 H 5 , n-C 4 H 9 , n-C 6 H 13 and n-C 7 H 15 .
Claim 12
Dependent Claim
23 words
A liquid crystal composition according to claim 6 wherein R 1 is n-C 7 H 15 and R 2 is CH 3 .
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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) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |