US4617141A
Expired / Lapsed
US
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Trans-4-alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexanes
Assignee: JNC Corp
•
Filing: 1985-03-18
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Granted: 1986-10-14
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Expires: 2005-03-18
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 cabon 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 18:32
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
25 words
A trans-4-alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexane expressed by the formula ##STR13## wherein R 1 and R 2 each represent an alkyl group of 1 to 8 carbon atoms.
Claim 2
Dependent Claim
25 words
A trans-4-alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexane expressed by the formula ##STR13## wherein R 1 and R 2 each represent an alkyl group of 1 to 8 carbon atoms.
Claim 3
Dependent Claim
22 words
A compound of claim 1, wherein R 1 and R 2 each represent an alkyl group of 1 to 5 carbon atoms.
Claim 4
Dependent Claim
20 words
A liquid crystal composition comprising a mixture of compounds at least one of which is a compound of claim 1.
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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) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |