Patent US4096157A successfully refreshed from Google Patents.
US4096157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azamethine metal complex compounds
Assignee: Hoechst AG
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Filing: 1976-09-23
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Granted: 1978-06-20
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Expires: 1996-09-23
Abstract
Abstract Azamethines which are obtainable by condensation of a 1-formyl-2-hydroxy-3-naphthoic acid arylamide with an orthohydroxy- or ortho-methoxy aniline form metal complexes with zinc, cadmium, cobalt, nickel or copper. These complexes are useful as pigments.
Inventors
- 👤 Klaus Hunger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:26
CPC Classifications
C; C09; C09B; C09B55/00; C09B55/002
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
A compound of the formula ##STR50## wherein X 1 , X 2 and X 3 , which are identical or different, are hydrogen, halogen, lower alkyl, lower alkoxy, phenyl, tolyl, nitro, lower carboalkoxy, sulfonamide, lower mono- or dialkyl sulfonamide, carbamoly, lower mono- or dialkyl carbamoyl, lower alkanoyl or a group of the formula ##STR51## wherein G is --NHCO--, --SO 2 NH-- or --CONH-- and R is hydrogen, chlorine, lower alkyl, lower alkoxy, sulfonamide or carbamoyl, Y is hydrogen, chlorine or bromine; Ar is naphthyl, phenyl or phenyl substituted by 1 to 3 equal or different substituents selected from lower alkyl, lower alkoxy, lower alkylsulfonyl, lower carboalkoxy, trifluoromethyl, nitro, cyano, lower alkanoylamino, benzoylamino, carbamoyl, lower mono- or dialkyl carbamoyl, sulfonamide, lower mono- or dialkyl sulfonamide and halogen; and M is zinc, cadmium, cobalt, nickel or copper.
Claim 2
Dependent Claim
135 words
A compound of the formula ##STR50## wherein X 1 , X 2 and X 3 , which are identical or different, are hydrogen, halogen, lower alkyl, lower alkoxy, phenyl, tolyl, nitro, lower carboalkoxy, sulfonamide, lower mono- or dialkyl sulfonamide, carbamoly, lower mono- or dialkyl carbamoyl, lower alkanoyl or a group of the formula ##STR51## wherein G is --NHCO--, --SO 2 NH-- or --CONH-- and R is hydrogen, chlorine, lower alkyl, lower alkoxy, sulfonamide or carbamoyl, Y is hydrogen, chlorine or bromine; Ar is naphthyl, phenyl or phenyl substituted by 1 to 3 equal or different substituents selected from lower alkyl, lower alkoxy, lower alkylsulfonyl, lower carboalkoxy, trifluoromethyl, nitro, cyano, lower alkanoylamino, benzoylamino, carbamoyl, lower mono- or dialkyl carbamoyl, sulfonamide, lower mono- or dialkyl sulfonamide and halogen; and M is zinc, cadmium, cobalt, nickel or copper.
Claim 3
Dependent Claim
84 words
A compound as in claim 1, wherein X 1 , X 2 and X 3 are hydrogen, chlorine, bromine, lower alkyl, lower alkoxy, nitro, acetamino, carbomethoxy, carbamoyl, lower alkyl carbamoyl, phenylcarbamoyl; Y is hydrogen, chlorine or bromine; Ar is phenyl or phenyl substituted by 1 to 3 substituents selected from lower alkyl, lower alkoxy, lower alkyl-sulfonyl, lower carboalkoxy, trifluoromethyl, nitro, cyano, lower alkanoylamino, benzoylamino, carbamoyl, lower mono- or dialkyl carbamoyl, sulfonamide, lower mono- or dialkylsulfonamide, bromo and chloro; and M is nickel or copper.
Claim 4
Dependent Claim
54 words
A compound as claimed in claim 1 having the formula ##STR52## wherein Y is hydrogen or bromine, X 1 is hydrogen, chlorine or lower carboalkoxy, X 2 is hydrogen or nitro, R 1 is hydrogen, lower alkyl or lower alkoxy; R 2 is hydrogen or chlorine and R 3 is hydrogen or lower alkoxy.
Claim 5
Dependent Claim
28 words
The compound as claimed in claim 3, wherein Y, X 1 and X 2 are hydrogen, R 1 and R 3 are methoxy and R 2 is chlorine.
Claim 6
Dependent Claim
27 words
The compound as claimed in claim 3, wherein Y, X 1 , X 2 , R 2 and R 3 are hydrogen and R 1 is ethoxy.
Claim 7
Dependent Claim
27 words
The compound as claimed in claim 3, wherein Y, X 1 , X 2 , R 2 and R 3 are hydrogen and R 1 is methoxy.
Claim 8
Dependent Claim
28 words
The compound as claimed in claim 3, wherein Y, R 1 , R 2 and R 3 are hydrogen, X 1 is chlorine and X 2 is nitro.
Claim 9
Dependent Claim
28 words
The compound as claimed in claim 3, wherein Y, X 2 , R 2 and R 3 are hydrogen, X 1 is carbomethoxy and R 1 is methyl.
Claim 10
Dependent Claim
30 words
The compound as claimed in claim 3, wherein X 2 , R 2 and R 3 are hydrogen, Y is bromine, X 1 is carbomethoxy and R 1 is methoxy.
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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |