US4460768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel complex pigments of azines
Assignee: BASF Corp
•
Filing: 1981-12-16
•
Granted: 1984-07-17
•
Expires: 2001-12-16
Abstract
Abstract 1:1 Nickel complexes of azines of the formula I or of a tautomer thereof ##STR1## wherein R 1 is hydrogen or methyl, R 2 is methyl or carbamoyl, R 3 is hydrogen or chlorine, R 4 is hydrogen, chlorine, methyl, trifluoromethyl or sulfamoyl, R 5 is hydrogen or chlorine, R 6 is hydrogen, chlorine, bromine, methyl, methoxy, trifluoromethyl, carbamoyl or alkanoylamino containing 2 to 4 carbon atoms, with the proviso that, if R 2 is carbamoyl, at least two of the substituents R 3 to R 6 are halogen atoms and/or trifluoromethyl groups, color plastics, lacquers and printing inks in orange to red shades of outstanding fastness properties.
Inventors
- 👤 Abul Iqbal
- 👤 Paul Lienhard
- 👤 Andre Pugin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:08
CPC Classifications
C; C09; C09B; C09B26/00; C09B26/02; C09B57/00; C09B57/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
31 words
A 1:1 nickel complex of an azine of the formula, or of a tautomer thereof, ##STR9## wherein R 4 is hydrogen, chloro, trifluoromethyl or sulfamoyl, and R 4 ' is 3-trifluoromethylphenyl.
Claim 2
Dependent Claim
31 words
A 1:1 nickel complex of an azine of the formula, or of a tautomer thereof, ##STR9## wherein R 4 is hydrogen, chloro, trifluoromethyl or sulfamoyl, and R 4 ' is 3-trifluoromethylphenyl.
Claim 3
Dependent Claim
32 words
A 1:1 nickel complex of an azine of the formula, or of a tautomer thereof, ##STR10## wherein R 4 is trifluoromethyl or sulfamoyl, and R 4 ' is 4-chlorophenyl, 3,4-dichlorophenyl or 2-methoxyphenyl.
Claim 4
Dependent Claim
32 words
A 1:1 nickel complex of an azine of the formula, or of a tautomer thereof, ##STR10## wherein R 4 is trifluoromethyl or sulfamoyl, and R 4 ' is 4-chlorophenyl, 3,4-dichlorophenyl or 2-methoxyphenyl.
References Cited (Backward Citations)
US4024132A
Cited
US4022770A
Cited
US4111947A
Cited
US4132708A
Cited
US4237292A
Cited
US4237286A
Cited
US4237293A
Cited
US4355159A
Cited
US4349671A
Cited
US4366312A
Cited
US4367333A
Cited
US4385174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-17 | 1988-01-16 | 1988-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-17 | 1992-01-16 | 1992-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-17 | 1996-01-16 | 1996-07-17 | $7700.00 | Window Closed / Lapsed |