US4349452A
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Cyclohexylcyclohexanoates
Assignee: Merck Patent GmbH
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Filing: 1980-07-15
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Granted: 1982-09-14
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Expires: 2000-07-15
Abstract
Abstract Anisotropic compounds of the formula (1) ##STR1## wherein X and Y are each hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, N-monoalkaylamine having 1 to 12 carbon atoms in the alkyl group, halogen, cyano, nitro, or a cyclic radical of the formula ##STR2## wherein R is hydrogen, halogen, cyano, nitro, C 1 -C 12 alkyl, or C 1 -C 12 alkoxy, Z 1 is a --COO-- group or a --OOC-- group and Z 2 may be the same as Z 1 or a single convalent bond, with the proviso that: (a) only one of the groups X and Y is a cyclic radical, and (b) neither of the groups X or Y is hydrogen, bromine, or poperidino when the other is hydrogen, have low Δn-values without a greay tendency to form smectic phases and are useful in preparing liquid crystal devices.
Inventors
- 👤 Maged A. Osman
- 👤 Laszlo Revesz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:56
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/096; C07D295/14; C07D295/155; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/30; C09K19/3001; C09K19/3066; C09K19/3068; C09K19/34; C09K19/3441; C09K19/3483
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
130 words
An anisotropic compound having the formula ##STR17## wherein X and Y are each selected from the group consisting of hydrogen, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano, nitro, and cyclic radicals selected from the group consisting of radicals having the following formulas: ##STR18## wherein R is selected from the group consisting of halogen, cyano and nitro, Z 1 is a carboxyl radical selected from the group consisting of --COO-- and --OOC--, and Z 2 is selected from the group consisting of Z 1 and a single covalent bond, with the proviso that: (a) only one of the groups X and Y is a cyclic radical, and; (b) neither of the groups X and Y is hydrogen, bromine, or piperidino when the other is hydrogen.
Claim 2
Dependent Claim
130 words
An anisotropic compound having the formula ##STR17## wherein X and Y are each selected from the group consisting of hydrogen, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano, nitro, and cyclic radicals selected from the group consisting of radicals having the following formulas: ##STR18## wherein R is selected from the group consisting of halogen, cyano and nitro, Z 1 is a carboxyl radical selected from the group consisting of --COO-- and --OOC--, and Z 2 is selected from the group consisting of Z 1 and a single covalent bond, with the proviso that: (a) only one of the groups X and Y is a cyclic radical, and; (b) neither of the groups X and Y is hydrogen, bromine, or piperidino when the other is hydrogen.
Claim 3
Dependent Claim
65 words
An anisotropic compound having the formula ##STR19## wherein X and Y are each selected from the group consisting of hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano and nitro, with the proviso that neither of the groups X and Y is hydrogen or bromine, when the other is hydrogen.
Claim 4
Dependent Claim
65 words
An anisotropic compound having the formula ##STR19## wherein X and Y are each selected from the group consisting of hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano and nitro, with the proviso that neither of the groups X and Y is hydrogen or bromine, when the other is hydrogen.
Claim 5
Dependent Claim
117 words
An anisotropic compound having the formula ##STR20## wherein X and Y are each selected from the group consisting of hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano, nitro, and cyclic radical selected from the group consisting of radicals having the following formulas: ##STR21## wherein R is selected from the group consisting of halogen, cyano, nitro, C 1 -C 12 alkyl, and C 1 -C 12 alkoxy with the proviso that: (a) one and only one of the groups X and Y is a cyclic radical, and; (b) neither of the groups X and Y is piperidino when the other is hydrogen.
Claim 6
Dependent Claim
117 words
An anisotropic compound having the formula ##STR20## wherein X and Y are each selected from the group consisting of hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano, nitro, and cyclic radical selected from the group consisting of radicals having the following formulas: ##STR21## wherein R is selected from the group consisting of halogen, cyano, nitro, C 1 -C 12 alkyl, and C 1 -C 12 alkoxy with the proviso that: (a) one and only one of the groups X and Y is a cyclic radical, and; (b) neither of the groups X and Y is piperidino when the other is hydrogen.
Claim 7
Dependent Claim
118 words
An anisotropic compound having the formula ##STR22## wherein X and Y are each selected from the group consisting of hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano, nitro, and cyclic radicals selected from the group consisting of radicals having the following formulas: ##STR23## wherein R is selected from the group consisting of halogen, cyano, nitro, C 1 -C 12 alkyl, and C 1 -C 12 alkoxy and Z 1 and Z 2 are carboxyl radicals selected from the group consisting of --COO-- and --OOC--, with the proviso that one and only one of the groups X and Y is a cyclic radical.
Claim 8
Dependent Claim
118 words
An anisotropic compound having the formula ##STR22## wherein X and Y are each selected from the group consisting of hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, N-monoalkylamino having 1 to 12 carbon atoms in the alkyl portion, halo, cyano, nitro, and cyclic radicals selected from the group consisting of radicals having the following formulas: ##STR23## wherein R is selected from the group consisting of halogen, cyano, nitro, C 1 -C 12 alkyl, and C 1 -C 12 alkoxy and Z 1 and Z 2 are carboxyl radicals selected from the group consisting of --COO-- and --OOC--, with the proviso that one and only one of the groups X and Y is a cyclic radical.
Claim 9
Dependent Claim
15 words
An anisotropic compound of the formula ##STR24## wherein R is C 1 -C 12 -alkyl.
Claim 10
Dependent Claim
15 words
An anisotropic compound of the formula ##STR24## wherein R is C 1 -C 12 -alkyl.
Claim 11
Dependent Claim
13 words
A liquid crystal mixture containing at least one anisotropic 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) | 1985-09-13 | 1986-03-15 | 1986-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-13 | 1990-03-15 | 1990-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-13 | 1994-03-15 | 1994-09-14 | $7700.00 | Window Closed / Lapsed |