US4663442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disazo triphenylamine compounds
Assignee: Ricoh Co Ltd
•
Filing: 1985-07-18
•
Granted: 1987-05-05
•
Expires: 2005-07-18
Abstract
Abstract A disazo compound, having the general formula, ##STR1## wherein Y represents a substituted or non-substituted cyclic hydrocarbon or substituted or non-substituted heterocycle; R represents hydrogen, substituted or non-substituted alkyl group, or substituted or non-substituted phenyl group; and Z represents a substituted or non-substituted cyclic hydrocarbon or heterocycle fused with phenyl nucleus.
Inventors
- 👤 Masafumi Ohta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:16
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0675; G03G5/0679; C; C09; C09B; C09B35/00; C09B35/02; C09B35/021; C09B35/023; C09B35/039
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
215 words
A disazo compound having the formula ##STR210## wherein Y is phenyl, phenyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, naphthyl, naphthyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, dibenzofuranyl, dibenzofuranyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, carbazolyl, and carbazolyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, R is hydrogen, alkyl, haloalkyl, phenyl, or halophenyl, and Z is an aromatic ring fused to the phenyl ring and selected from the group consisting of a benzene ring, a benzene ring substituted with halogen, a naphthalene ring, a naphthalene ring substituted with halogen, an indole ring, an indole ring substituted with halogen, a benzofuran ring, a benzofuran ring substituted with halogen, carbazole ring, a carbazole ring substituted with halogen, a dibenzofuran ring and a dibenzofuran ring substituted with halogen.
Claim 2
Dependent Claim
215 words
A disazo compound having the formula ##STR210## wherein Y is phenyl, phenyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, naphthyl, naphthyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, dibenzofuranyl, dibenzofuranyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, carbazolyl, and carbazolyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na, R is hydrogen, alkyl, haloalkyl, phenyl, or halophenyl, and Z is an aromatic ring fused to the phenyl ring and selected from the group consisting of a benzene ring, a benzene ring substituted with halogen, a naphthalene ring, a naphthalene ring substituted with halogen, an indole ring, an indole ring substituted with halogen, a benzofuran ring, a benzofuran ring substituted with halogen, carbazole ring, a carbazole ring substituted with halogen, a dibenzofuran ring and a dibenzofuran ring substituted with halogen.
Claim 3
Dependent Claim
61 words
A disazo compound as claimed in claim 1 in which Z is a benzene ring or a benzene ring substituted with halogen, R is hydrogen and Y is naphthyl, phenyl or phenyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na.
Claim 4
Dependent Claim
17 words
A disazo compound as claimed in claim 1 in which Z is naphthalene and R is hydrogen.
Claim 5
Dependent Claim
53 words
A disazo compound as claimed in claim 1 in which Z is a carbazole ring, R is hydrogen and Y is phenyl or phenyl substituted with at least one member selected from the group consisting of lower alkyl, lower alkoxy, lower dialkylamino, halogen, halomethyl, lower alkylcarboxyl, carboxyl, cyano, nitro and --SO 3 Na.
Claim 6
Dependent Claim
27 words
A compound as claimed in claim 1 in which Z is a benzene ring, R is hydrogen and Y is carbazolyl, dibenzofuranyl or dibenzofuranyl substituted with methoxy.
Claim 7
Dependent Claim
22 words
A compound as claimed in claim 1 in which Z is a benzene ring and R is methyl, ethyl, phenyl and chlorophenyl.
Claim 8
Dependent Claim
18 words
A compound as claimed in claim 1 in which Z is a benzofuran ring or an indole ring.
Claim 9
Dependent Claim
67 words
A disazo compound according to claim 1, wherein said lower alkyl is selected from the group consisting of methyl, ethyl, propyl and butyl, said lower alkoxy is selected from the group consisting of methoxy, ethoxy and butoxy, said lower dialkylamino is selected from the group consisting of N,N-dimethylamino, N,N-diethylamino and N,N-dibutylamino, and said halogen atom is selected from the group consisting of fluorine, chlorine, bromine and iodine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |