US4695398A
Expired / Lapsed
US
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Cyclohexane derivative
Assignee: JNC Corp
•
Filing: 1986-03-12
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Granted: 1987-09-22
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Expires: 2006-03-12
Abstract
Abstract A compound which, when used as a component of a liquid crystal composition, has an effectiveness of notably reducing the viscosity and the operating voltage of the resulting liquid crystal composition, and a liquid crystal composition containing the same are provided, which compound is a cyclohexane derivative expressed by the formula ##STR1## wherein R represents hydrogen atom or an alkyl group of 1 to 10 carbon atoms.
Inventors
- 👤 Yasuyuki Goto
- 👤 Tetsuya Ogawa
- 👤 Shigeru Sugimori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:25
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/30; C09K19/3001; C09K19/3003; C07; C07C; C07C25/00; C07C25/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
19 words
A cyclohexane derivative having the formula ##STR8## wherein R represents an alkyl group of 1 to 10 carbon atoms.
Claim 2
Dependent Claim
19 words
A cyclohexane derivative having the formula ##STR8## wherein R represents an alkyl group of 1 to 10 carbon atoms.
Claim 3
Dependent Claim
27 words
A liquid crystal composition having at least two components at least one of which is a compound expressed by the formula (I) set forth in claim 1.
Claim 4
Dependent Claim
14 words
A compound according to claim 1 wherein R is C 5 H 11 .
Claim 5
Dependent Claim
14 words
A compound according to claim 1 wherein R is C 3 H 7 .
Claim 6
Dependent Claim
44 words
A liquid crystal composition comprising 85% by weight of a composition consisting of: 24% by weight of trans-4-propyl-(4'cyanophenyl) -cyclohexane; 36% by weight of trans-4-pentyl-(4'cyanophenyl) -cyclohexane; 25% by weight of trans-4-heptyl-(4'cyanophenyl) -cyclohexane; 15% by weight of trans-4-pentyl-(4"cyanobiphenyl) -cyclo-hexane; and, 15% by weight of trans-4-pentyl-(3,4-difluorophenyl) -cyclo-hexane.
Claim 7
Dependent Claim
44 words
A liquid crystal composition comprising 85% by weight of a composition consisting of: 24% by weight of trans-4-propyl-(4'cyanophenyl) -cyclohexane; 36% by weight of trans-4-pentyl-(4'cyanophenyl) -cyclohexane; 25% by weight of trans-4-heptyl-(4'cyanophenyl) -cyclohexane; 15% by weight of trans-4-pentyl-(4"cyanobiphenyl) -cyclo-hexane; and, 15% by weight of trans-4-pentyl-(3,4-difluorophenyl) -cyclo-hexane.
Claim 8
Dependent Claim
44 words
A liquid crystal composition comprising 85% by weight of a composition consisting of: 24% by weight of trans-4-propyl-(4'-cyanophenyl) -cyclo-hexane; 36% by weight of trans-4-pentyl-(4'-cyanophenyl) -cyclo-hexane; 25% by weight of trans-4-heptyl-(4'-cyanophenyl) -cyclo-hexane; 15% by weight of trans-4-pentyl-(4"-cyanobiphenyl) -cyclo-hexane; and, 15% by weight of trans-4-propyl-(3,4-difluorophenyl) -cyclo-hexane.
Claim 9
Dependent Claim
44 words
A liquid crystal composition comprising 85% by weight of a composition consisting of: 24% by weight of trans-4-propyl-(4'-cyanophenyl) -cyclo-hexane; 36% by weight of trans-4-pentyl-(4'-cyanophenyl) -cyclo-hexane; 25% by weight of trans-4-heptyl-(4'-cyanophenyl) -cyclo-hexane; 15% by weight of trans-4-pentyl-(4"-cyanobiphenyl) -cyclo-hexane; and, 15% by weight of trans-4-propyl-(3,4-difluorophenyl) -cyclo-hexane.
Claim 10
Dependent Claim
40 words
A process of reducing the viscosity and operating voltage of a liquid crystal composition comprising adding a cyclohexane derivative expressed by the formula: ##STR9## to a liquid crystal composition, wherein R represents an alkyl group of 1 to 10 atoms.
Claim 11
Dependent Claim
40 words
A process of reducing the viscosity and operating voltage of a liquid crystal composition comprising adding a cyclohexane derivative expressed by the formula: ##STR9## to a liquid crystal composition, wherein R represents an alkyl group of 1 to 10 atoms.
Claim 12
Dependent Claim
12 words
A compound having the formula: ##STR10## where R represents a hydrogen atom.
Claim 13
Dependent Claim
12 words
A compound having the formula: ##STR10## where R represents a hydrogen atom.
Claim 14
Dependent Claim
27 words
A liquid crystal composition including at least two components at least one of which is a compound expressed by the formula (II) set forth in claim 8.
Claim 15
Dependent Claim
29 words
A process of reducing the viscosity and operating voltage of a liquid crystal composition comprising adding a cyclohexane derivative expressed by the formula: ##STR11## to a liquid crystal composition.
Claim 16
Dependent Claim
29 words
A process of reducing the viscosity and operating voltage of a liquid crystal composition comprising adding a cyclohexane derivative expressed by the formula: ##STR11## to a liquid crystal composition.
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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) | 1990-09-21 | 1991-03-23 | 1991-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-21 | 1995-03-23 | 1995-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-21 | 1999-03-23 | 1999-09-22 | $7700.00 | Window Closed / Lapsed |