US3974149A
Expired / Lapsed
US
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Azomethine pigments
Assignee: Novartis Corp
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Filing: 1974-08-30
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Granted: 1976-08-10
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Expires: 1994-08-30
Abstract
Abstract Azomethine pigments of the formula AND METAL COMPLEXES THEREOF, WHEREIN A denotes an isocyclic or heterocyclic aromatic radical, R denotes a H atom, an alkyl group containing 1-6 C atoms, or an aryl radical, X2 and X4 denote H atoms or halogen atoms, X1 and X3 denote H atoms or halogen atoms, alkoxy or alkylmercapto groups containing 1-6 C atoms, cycloalkoxy groups containing 5-6 C atoms, or aralkoxy, aryloxy or arylmercapto groups, it being possible for one of the substituents X1-X4 also to be a nitro group which are useful for pigmenting of high molecular material.
Inventors
- 👤 Francois L'Eplattenier
- 👤 Andre Pugin
- 👤 Laurent Vuitel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:57
CPC Classifications
C; C09; C09B; C09B57/00; C09B57/04; C09B23/00; C09B23/16; C09B23/162; C09B23/166
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
An azomethine pigment of the formula ##SPC57## wherein M is, copper or nickel; R is hydrogen, or alkyl of 1-6 carbon atoms; X 6 and X 8 is hydrogen, halogen, or nitro; X 5 and X 7 is hydrogen, halogen, alkoxy of 1-6 carbon atoms, alkyl mercapto of 1-6 carbon atoms, cycloalkoxy containing 5-6 carbon atoms, phenoxy, chloro phenoxy, methyl phenoxy, or nitro; and R 2 is lower alkyl, phenyl, or phenyl substituted by methyl.
Claim 2
Dependent Claim
75 words
An azomethine pigment of the formula ##SPC57## wherein M is, copper or nickel; R is hydrogen, or alkyl of 1-6 carbon atoms; X 6 and X 8 is hydrogen, halogen, or nitro; X 5 and X 7 is hydrogen, halogen, alkoxy of 1-6 carbon atoms, alkyl mercapto of 1-6 carbon atoms, cycloalkoxy containing 5-6 carbon atoms, phenoxy, chloro phenoxy, methyl phenoxy, or nitro; and R 2 is lower alkyl, phenyl, or phenyl substituted by methyl.
Claim 3
Dependent Claim
11 words
An azomethine pigment according to claim 1 of the formula ##SPC58##
References Cited (Backward Citations)
US3360508A
Cited
DE2142245A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |