US4481149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine-containing phenyl benzoate compounds, and their production and use
Assignee: Daikin Industries Ltd
•
Filing: 1983-03-23
•
Granted: 1984-11-06
•
Expires: 2003-03-23
Abstract
Abstract Fluorine-containing phenyl benzoate compounds which have the general formula: <IMAGE> wherein R is a C1-C12 perfluoroalkyl group, a C1-C12 alkyl group, a C1-C12 alkoxy group, a C2-C13 alkanoyloxy group, a C2-C13 alkoxycarbonyl group, a C2-C13 alkoxycarbonyloxy group or a C2-C13 alkyldioxycarbonyl group and X is a C1-C12 alkyl group, a C1-C12 alkoxy group, a cyano group, a trifluoromethyl group or a nitro group with the proviso that X is trifluoromethyl when R is other than perfluoroalkyl are useful as components of liquid crystals.
Inventors
- 👤 Susumu Misaki
- 👤 Masahiro Suefuji
- 👤 Tamio Mitote
- 👤 Naotake Matsumura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:38
CPC Classifications
C; C07; C07C; C07C255/00; C07C63/00; C07C63/68; C07C63/70; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
28 words
A compound of the formula: ##STR37## wherein R is a C 1 -C 12 perfluoroalkyl group and X is a alkyl a cyano group or a nitro group.
Claim 2
Dependent Claim
28 words
A compound of the formula: ##STR37## wherein R is a C 1 -C 12 perfluoroalkyl group and X is a alkyl a cyano group or a nitro group.
Claim 3
Dependent Claim
9 words
The compound according to claim 1, which is ##STR38##
Claim 4
Dependent Claim
9 words
The compound according to claim 1, which is ##STR39##
Claim 5
Dependent Claim
9 words
The compound according to claim 1, which is ##STR40##
Claim 6
Dependent Claim
9 words
The compound according to claim 1, which is ##STR41##
Claim 7
Dependent Claim
9 words
The compound according to claim 1, which is ##STR42##
Claim 8
Dependent Claim
5 words
The compound which is ##STR43##
Claim 9
Dependent Claim
5 words
The compound which is ##STR43##
Claim 10
Dependent Claim
5 words
The compound which is ##STR44##
Claim 11
Dependent Claim
5 words
The compound which is ##STR44##
Claim 12
Dependent Claim
9 words
The compound according to claim 1, which is ##STR45##
Claim 13
Dependent Claim
12 words
The compound according to claim 1, wherein X is a cyano group.
Claim 14
Dependent Claim
12 words
The compound according to claim 1, wherein X is a nitro group.
References Cited (Backward Citations)
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US3876286A
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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) | 1987-11-06 | 1988-05-07 | 1988-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-06 | 1992-05-07 | 1992-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-06 | 1996-05-07 | 1996-11-06 | $7700.00 | Window Closed / Lapsed |