US4522741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trans-4-alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexanes
Assignee: JNC Corp
•
Filing: 1983-06-08
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Granted: 1985-06-11
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Expires: 2003-06-08
Abstract
Abstract Novel liquid crystal compounds having a higher clearing point and a superior stability are provided, which are trans-4-alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexanes expressed by the general formula (I): ##STR1## wherein R 1 and R 2 each represent an alkyl group of 1 to 8 carbon atoms and n represents 0 or 1.
Inventors
- 👤 Hiromichi Inoue
- 👤 Takashi Inukai
- 👤 Yasuyuki Goto
- 👤 Hideo Sato
- 👤 Masahiro Fukui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:54
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/30; C09K19/3001; C09K19/3003; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C31/00; C07C31/13; C07C31/133; C07C31/135; C07C31/1355; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/164; C07C43/168; C07C43/17; C07C43/174; C07C43/1747; C07C43/176; C09K2019/3021
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
A compound, expressed by the formula ##STR13## wherein R 1 and R 2 each represents an alkyl group of 1 to 8 carbon atoms.
Claim 2
Dependent Claim
24 words
A compound, expressed by the formula ##STR13## wherein R 1 and R 2 each represents an alkyl group of 1 to 8 carbon atoms.
Claim 3
Dependent Claim
24 words
A liquid crystal composition comprising a mixture of compounds at least one of which is a compound expressed by the formula of claim 1.
Claim 4
Dependent Claim
27 words
A compound of claim 1, expressed by the formula ##STR14## wherein R 1 and R 2 each represents an alkyl group of 1 to 5 carbon atoms.
References Cited (Backward Citations)
US4330426A
Cited
US4331552A
Cited
US4361494A
Cited
JPS5749688A
Cited
JPS5777658A
Cited
JPS5799542A
Cited
JPS57108056A
Cited
EP0058981A2
Cited
US4468240A
Cited
US4431564A
Cited
JPS58134046A
Cited
EP0090548A2
Cited
US4452719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |