US3963708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-azomethine metal complex colorants from hydroxycoumarin derivatives or hydroxychromone derivatives
Assignee: Novartis Corp
•
Filing: 1975-07-28
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Granted: 1976-06-15
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Expires: 1995-07-28
Abstract
Abstract Bis-azomethine metal complex colorants of the formulae ##SPC1## Wherein M denotes a divalent transition metal cation, zinc ion or cadmium ion, X denotes an isocyclic or heterocyclic aromatic radical to which the two nitrogen atoms are bonded in the o- or peri-position to one another and Y 1 and Y 2 denote hydrogen, halogen, alkyl, aryl, nitro, alkoxy, phenoxy or hydroxyl, which are suitable for pigmenting high-molecular organic material.
Inventors
- 👤 Francois L'Eplattenier
- 👤 Laurent Vuitel
- 👤 Andre Pugin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:16
CPC Classifications
C; C07; C07D; C07D309/00; C07D309/32; C09; C09B; C09B55/00; C09B55/005; C09B55/006; C09B57/00; C09B57/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
61 words
Bis-azomethine metal complex colorants of the formulae ##SPC10## wherein M denotes a divalent transition metal cation, zinc ion or cadmium ion, X denotes an isocyclic or heterocyclic aromatic radical to which the two nitrogen atoms are bonded in the o- or peri-position to one another and Y 1 and Y 2 denote hydrogen, halogen, alkyl, aryl, nitro, alkoxy, phenoxy or hydroxyl.
Claim 2
Dependent Claim
61 words
Bis-azomethine metal complex colorants of the formulae ##SPC10## wherein M denotes a divalent transition metal cation, zinc ion or cadmium ion, X denotes an isocyclic or heterocyclic aromatic radical to which the two nitrogen atoms are bonded in the o- or peri-position to one another and Y 1 and Y 2 denote hydrogen, halogen, alkyl, aryl, nitro, alkoxy, phenoxy or hydroxyl.
Claim 3
Dependent Claim
94 words
Bis-azomethine metal complex colorants according to claim 1, of the formula ##SPC11## wherein M denotes a divalent nickel, copper, zinc or cadmium ion, Y 1 and Y 2 denote hydrogen, chlorine, alkyl with 1-6 carbon atoms or alkoxy with 1-6 carbon atoms and Z 1 and Z 2 denote hydrogen, halogen, alkyl with 1-6 carbon atoms, alkoxy with 1-6 carbon atoms, aryloxy, arylalkyl with 7-10 carbon atoms, trifluoromethyl or phenylcarbamoyl, phenylsulphamoyl, carbalkoxy, carboxyl, alkanoyl, aroylamino or nitro, or wherein the two radicals Z 1 and Z 2 form a fused benzene ring or hetero-ring.
Claim 4
Dependent Claim
27 words
Bis-azomethine metal complex colorants according to claim 2, of the formula ##SPC12## wherein Z 1 , Z 2 and M have the meaning indicated in claim 2.
Claim 5
Dependent Claim
21 words
Bis-azomethine metal complex colorants according to claim 3, characterised in that Z 1 and Z 2 denote hydrogen, trifluoromethyl or chlorine.
Claim 6
Dependent Claim
14 words
Bis-azomethine metal complex colorants according to claim 4, characterised in that M denotes nickel.
Claim 7
Dependent Claim
10 words
The dyestuff of the formula according to claim 3 ##SPC13##
Claim 8
Dependent Claim
10 words
The dyestuff of the formula according to claim 3 ##SPC14##
Claim 9
Dependent Claim
10 words
The dyestuff of the formula according to claim 3 ##SPC15##
Claim 10
Dependent Claim
10 words
The dyestuff of the formula according to claim 3 ##SPC16##
Claim 11
Dependent Claim
10 words
The dyestuff of the formula according to claim 3 ##SPC17##
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) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |