US4287121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble polyfluoro acid azo dyestuffs
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1976-08-03
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Granted: 1981-09-01
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Expires: 1996-08-03
Abstract
Abstract A compound having the formula: <IMAGE> wherein X represents a -SO3H or PO3H2 Y represents hydrogen, chlorine, alkyl, alkoxy or nitro, Z represents hydrogen, B represents a p-phenylene or 1,4-naphthylene unsubstituted or substituted by one or two alkyl or alkoxy groups, R represents hydrogen, alkyl or alkoxy, R1 represents hydrogen, chlorine, alkyl, alkoxy or acetylamino, R2 represents hydrogen, alkyl, cyanethyl or hydroxyalkyl, the alkyl and alkoxy having 1 to 5 carbon atoms, <IMAGE>
Inventors
- 👤 Jacques P. E. Pechmeze
- 👤 Robert F. M. Sureau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:00
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/04; C09B31/043; C09B31/047; C09B69/00; C09B69/007
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
A compound having the formula: ##STR7## X represents a --SO 3 H or PO 3 H 2 Y represents hydrogen, chlorine, alkyl, alkoxy or nitro; Z represents hydrogen; B represents p-phenylene or 1,4-naphthylene unsubstituted or substituted by one or two alkyl or alkoxy groups; R represents hydrogen, alkyl or alkoxy; R 1 represents hydrogen, chlorine, alkyl, alkoxy or acetylamino; and R 2 represents hydrogen, alkyl, cyanethyl or hydroxyalkyl, the alkyl and alkoxy having 1 to 5 carbon atoms.
Claim 2
Dependent Claim
78 words
A compound having the formula: ##STR7## X represents a --SO 3 H or PO 3 H 2 Y represents hydrogen, chlorine, alkyl, alkoxy or nitro; Z represents hydrogen; B represents p-phenylene or 1,4-naphthylene unsubstituted or substituted by one or two alkyl or alkoxy groups; R represents hydrogen, alkyl or alkoxy; R 1 represents hydrogen, chlorine, alkyl, alkoxy or acetylamino; and R 2 represents hydrogen, alkyl, cyanethyl or hydroxyalkyl, the alkyl and alkoxy having 1 to 5 carbon atoms.
Claim 3
Dependent Claim
8 words
The sodium salt of [4-(N-ethyl-N-3',3',4',4',4'-pentafluorobutyl)amino-2-methyl-benzene]-<1 azo 4'>-[benzene-azo-benzene-3-sulphonic] acid.
Claim 4
Dependent Claim
8 words
The sodium salt of [4-(N-ethyl-N-3',3',4',4',4'-pentafluorobutyl)amino-2-methyl-benzene]-<1 azo 4'>-[benzene-azo-benzene-3-sulphonic] acid.
Claim 5
Dependent Claim
8 words
The sodium salt of [4-(N-cyanethyl-N-3',3',4',4',4'-pentafluorobutyl)amino-2-methyl-benzene]-<1 azo 4'>-[benzene-azo-benzene-3-sulphonic] acid.
Claim 6
Dependent Claim
8 words
The sodium salt of [4-(N-cyanethyl-N-3',3',4',4',4'-pentafluorobutyl)amino-2-methyl-benzene]-<1 azo 4'>-[benzene-azo-benzene-3-sulphonic] acid.
Claim 7
Dependent Claim
8 words
The sodium salt of [4-N-ethyl-N-3',3',4',4',4'-pentafluorobutyl)amino-2-methyl-benzene]-<1 azo 4'>-[naphthalene-azo-benzene-3-sulphonic] acid.
Claim 8
Dependent Claim
8 words
The sodium salt of [4-N-ethyl-N-3',3',4',4',4'-pentafluorobutyl)amino-2-methyl-benzene]-<1 azo 4'>-[naphthalene-azo-benzene-3-sulphonic] acid.
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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |