US4452719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-(Trans-4'-alkyloxymethylcyclohexyl)benzoic acid esters
Assignee: JNC Corp
•
Filing: 1983-05-10
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Granted: 1984-06-05
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Expires: 2003-05-10
Abstract
Abstract Novel liquid crystal compounds which are useful as a component constituting liquid crystal compositions and particularly capable of broadening the liquid crystal temperature range of the compositions due to high clearing point of the compounds, and liquid crystal compositions comprising the same, are provided, which compounds are 4-(trans-4'-alkyloxymethylcyclohexyl)benzoic acid esters having the general formula <IMAGE> (I) wherein X represents <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> each represent an alkyl group of 1 to 10 carbon atoms.
Inventors
- 👤 Hiromichi Inoue
- 👤 Takashi Inukai
- 👤 Yasuyuki Goto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:18
CPC Classifications
C; C07; C07C; C07C255/00; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C309/00; C07C33/00; C07C33/34; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/164; C07C43/168; C07C43/17; C07C43/174; C07C43/1747; C07C65/00; C07C65/21; C07C65/24; C07C65/26; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/30; C09K19/3001; C09K19/3066; C09K19/3068; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
23 words
4-(Trans-4'-alkyloxymethylcyclohexyl)benzoic acid esters having the general formula ##STR10## wherein X represents ##STR11## each represent an alkyl group of 1 to 10 carbon atoms.
Claim 2
Dependent Claim
23 words
4-(Trans-4'-alkyloxymethylcyclohexyl)benzoic acid esters having the general formula ##STR10## wherein X represents ##STR11## each represent an alkyl group of 1 to 10 carbon atoms.
Claim 3
Dependent Claim
17 words
Esters according to claim 1, expressed by the general formula ##STR12## wherein n represents 1 or 2.
Claim 4
Dependent Claim
11 words
Esters according to claim 1, expressed by the general formula ##STR13##
Claim 5
Dependent Claim
18 words
Esters according to claim 1, expressed by the general formula ##STR14## wherein Y represents F, Cl or Br.
Claim 6
Dependent Claim
17 words
Esters according to claim 1, expressed by the general formula ##STR15## wherein m represents 1 or 2.
Claim 7
Dependent Claim
21 words
A liquid crystal composition comprising a mixture of compounds at least one of which is a compound according to claim 1.
References Cited (Backward Citations)
US4229315A
Cited
US4387038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |