US4585575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalenes
Assignee: JNC Corp
•
Filing: 1984-12-18
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Granted: 1986-04-29
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Expires: 2004-12-18
Abstract
Abstract Novel liquid crystal compounds having superior properties and liquid crystal compositions containing the same are provided, which compounds are expressed by the general formula ##STR1## wherein R 1 represents an alkyl group or an alkoxy group, each having 1 to 10 carbon atoms and R 2 represents cyano group or an alkyl group having 1 to 10 carbon atoms.
Inventors
- 👤 Shigeru Sugimori
- 👤 Toyoshiro Isoyama
- 👤 Yasuyuki Goto
- 👤 Tetsuya Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:27
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07D239/28; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3441; C09K19/345; C09K19/3458
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
42 words
A 2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalene expressed by the general formula ##STR4## wherein R 1 represents an alkyl group or an alkoxy group, each having 1 to 10 carbon atoms and R 1 represents cyano group or an alkyl group having 1 to 10 carbon atoms.
Claim 2
Dependent Claim
42 words
A 2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalene expressed by the general formula ##STR4## wherein R 1 represents an alkyl group or an alkoxy group, each having 1 to 10 carbon atoms and R 1 represents cyano group or an alkyl group having 1 to 10 carbon atoms.
Claim 3
Dependent Claim
29 words
A 2-alkyl-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 1 wherein said R 1 and R 2 in the general formula (I) each represents an alkyl group having 1 to 10 carbon atoms.
Claim 4
Dependent Claim
40 words
A 2-alkoxy-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 1 wherein said R 1 in the general formula (I) represents an alkoxy group having 1 to 10 carbon atoms and said R 2 therein represents an alkyl group having 1 to 10 carbon atoms.
Claim 5
Dependent Claim
33 words
A 2-alkyl-6-(5-cyano-2-pyrimidinyl)naphthalene according to claim 1 wherein said R 1 in the general formula (I) represents an alkyl group having 1 to 10 carbon atoms and said R 2 therein represents cyano group.
Claim 6
Dependent Claim
33 words
A 2-alkoxy-6-(5-cyano-2-pyrimidinyl)naphthalene according to claim 1 wherein said R 1 in the general formula (I) represents an alkoxy group having 1 to 10 carbon atoms and said R 2 therein represents cyano group.
Claim 7
Dependent Claim
17 words
Liquid crystal compositions containing at least one 2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalene expressed by the general formula (I) of claim 1.
Claim 8
Dependent Claim
29 words
Liquid crystal compositions according to claim 6 wherein said at least one 2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalene is contained in an amount of 1 to 30% by weight in said liquid crystal compositions.
Claim 9
Dependent Claim
23 words
The 2-alkyl-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 2 wherein R 1 is C 7 H 15 and R 2 is C 2 H 5 .
Claim 10
Dependent Claim
23 words
The 2-alkyl-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 2 wherein R 1 is C 7 H 15 and R 2 is C 4 H 9 .
Claim 11
Dependent Claim
23 words
The 2-alkyl-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 2 wherein R 1 is C 7 H 15 and R 2 is C 5 H 11 .
Claim 12
Dependent Claim
23 words
The 2-alkyl-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 2 wherein R 1 is C 7 H 15 and R 2 is C 6 H 13 .
Claim 13
Dependent Claim
24 words
The 2-alkoxy-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 3 wherein R 1 is C 5 H 11 O and R 2 is C 3 H 7 .
Claim 14
Dependent Claim
24 words
The 2-alkoxy-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 3 wherein R 1 is C 5 H 11 O and R 2 is C 4 H 9 .
Claim 15
Dependent Claim
24 words
The 2-alkoxy-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 3 wherein R 1 is C 5 H 11 O and R 2 is C 5 H 11 .
Claim 16
Dependent Claim
24 words
The 2-alkoxy-6-(5-alkyl-2-pyrimidinyl)naphthalene according to claim 3 wherein R 1 is C 5 H 11 O and R 2 is C 6 H 13 .
Claim 17
Dependent Claim
15 words
The 2-alkyl-6-(5-cyano-2-pyrimidinyl)naphthalene according to claim 4 wherein R 1 is C 7 H 15 .
Claim 18
Dependent Claim
15 words
The 2-alkoxy-6-(5-cyano-2-pyrimidinyl)naphthalene according to claim 5 wherein R 1 is C 5 H 11 O.
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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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |