US4062838A
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Disazo pigments containing acylamino groups
Assignee: Novartis Corp
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Filing: 1976-05-14
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Granted: 1977-12-13
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Expires: 1996-05-14
Abstract
Abstract Disazo pigments of the formula ##STR1## wherein A denotes a phenylene or naphthylene radical, R denotes an aryl, alkyl or alkenyl group optionally substituted by halogen atoms, by hydroxyl, alkoxy or alkylmercapto groups containing 1-6 C atoms, by alkoxycarbonyl groups containing 2-6 C atoms or cyano, aryl, aryloxy, arylmercapto or heterocyclic radicals, or denotes a heterocyclic radical, and the X and Y denote H atoms or substituents which do not confer solubility in water are useful for coloring plastics lacquers and printing inks in yellow to orange shade of good fastness properties.
Inventors
- 👤 Georg Cseh
- 👤 Stefan Hari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
C; C09; C09B; C09B33/00; C09B33/02; C09B33/153
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
A disazo pigment of the formula ##STR10## wherein A denotes a group of the formula ##STR11## wherein X 1 and Y 1 denote hydrogen, halogen, alkyl containing 1 to 4 carbon atoms, alkoxy containing 1 to 4 carbon atoms, phenoxy, trifluoromethyl, nitro, cyano, or alkoxycarbonyl containing 2 to 5 carbon atoms, or naphthylene; X denotes hydrogen, alkyl containing 1 to 4 carbon atoms, alkoxy containing 1 to 4 carbon atoms, nitro, cyano, alkoxycarbonyl containing 2 to 5 carbon atoms, or alkanoylamino containing 2 to 5 carbon atoms; Y denotes hydrogen, halogen, alkyl containing 1 to 4 carbon atoms, or alkoxy containing 1 to 4 carbon atoms; and R denotes alkyl containing 1 to 6 carbon atoms.
Claim 2
Dependent Claim
116 words
A disazo pigment of the formula ##STR10## wherein A denotes a group of the formula ##STR11## wherein X 1 and Y 1 denote hydrogen, halogen, alkyl containing 1 to 4 carbon atoms, alkoxy containing 1 to 4 carbon atoms, phenoxy, trifluoromethyl, nitro, cyano, or alkoxycarbonyl containing 2 to 5 carbon atoms, or naphthylene; X denotes hydrogen, alkyl containing 1 to 4 carbon atoms, alkoxy containing 1 to 4 carbon atoms, nitro, cyano, alkoxycarbonyl containing 2 to 5 carbon atoms, or alkanoylamino containing 2 to 5 carbon atoms; Y denotes hydrogen, halogen, alkyl containing 1 to 4 carbon atoms, or alkoxy containing 1 to 4 carbon atoms; and R denotes alkyl containing 1 to 6 carbon atoms.
Claim 3
Dependent Claim
19 words
A disazo pigment according to claim 1, wherein the -NHCOR group is in the para-position to the azo group.
Claim 4
Dependent Claim
19 words
A disazo pigment according to claim 1, wherein the -NHCOR group is in the meta-position to the azo group.
Claim 5
Dependent Claim
36 words
A disazo pigment according to claim 1 wherein A denotes a radical of the formula ##STR12## wherein X 2 and Y 2 denote hydrogen, chloro, alkyl containing 1-4 C atoms or alkoxy containing 1-4 C atoms.
Claim 6
Dependent Claim
10 words
The compound according to claim 1 of the formula ##STR13##
Claim 7
Dependent Claim
10 words
The compound according to claim 1 of the formula ##STR14##
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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) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |