US4263205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo pigments derived from substituted aminothiophenes
Assignee: BASF Corp
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Filing: 1979-05-31
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Granted: 1981-04-21
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Expires: 1999-05-31
Abstract
Abstract Monoazo pigments of the formula I ##STR1## in which R is the radical of a carbocyclic or heterocyclic aromatic amine and R 1 , R 2 and R 3 are hydrogen, halogen, alkyl, alkoxy, alkoxycarbonyl, substituted or unsubstituted aminocarbonyl, nitro, cyano or trifluoromethyl. These pigments are suitable for coloring high molecular weight organic material and are distinguished by their easy accessibility and good general fastness properties and in particular by high clarity of color shade.
Inventors
- 👤 Stefan Hari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:23
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/32; C09B29/00; C09B29/10; C09B29/18; C09B29/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
127 words
A monoazo pigment of the formula ##STR18## in which R 2 is methyl, R 1 is cyano or --COOR 6 and R 3 is --COOR 6 wherein R 6 is methyl or ethyl, X 1 and X 2 are independently hydrogen, halogen, alkyl having 1-4 C atoms or alkoxy having 1-4 C atoms, and X 5 is phenyl or phenyl substituted by one, two or three identical or different substituents selected from the group consisting of chlorine, alkyl having 1-4 C atoms, alkoxy having 1-4 C atoms, trifluoromethyl, --COOX 4 , --CONHX 4 , --NHCOX 4 and --CONH 2 in which X 4 is alkyl having 1-4 C atoms, phenyl, benzyl, or said phenyl or said benzyl substituted by halogen or by alkyl having 1-4 C atoms.
Claim 2
Dependent Claim
127 words
A monoazo pigment of the formula ##STR18## in which R 2 is methyl, R 1 is cyano or --COOR 6 and R 3 is --COOR 6 wherein R 6 is methyl or ethyl, X 1 and X 2 are independently hydrogen, halogen, alkyl having 1-4 C atoms or alkoxy having 1-4 C atoms, and X 5 is phenyl or phenyl substituted by one, two or three identical or different substituents selected from the group consisting of chlorine, alkyl having 1-4 C atoms, alkoxy having 1-4 C atoms, trifluoromethyl, --COOX 4 , --CONHX 4 , --NHCOX 4 and --CONH 2 in which X 4 is alkyl having 1-4 C atoms, phenyl, benzyl, or said phenyl or said benzyl substituted by halogen or by alkyl having 1-4 C atoms.
Claim 3
Dependent Claim
11 words
The monoazo pigment according to claim 1 of the formula ##STR19##
Claim 4
Dependent Claim
11 words
The monoazo pigment according to claim 1 of the formula ##STR20##
Claim 5
Dependent Claim
11 words
The monoazo pigment according to claim 1 of the formula ##STR21##
Claim 6
Dependent Claim
11 words
The monoazo pigment according to claim 1 of the formula ##STR22##
Claim 7
Dependent Claim
11 words
The monoazo pigment according to claim 1 of the formula ##STR23##
References Cited (Backward Citations)
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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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |