US3972881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazinyl dyes
Assignee: Novartis Corp
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Filing: 1974-08-19
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Granted: 1976-08-03
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Expires: 1994-08-19
Abstract
Abstract Vat dyestuffs of the formula ##EQU1## wherein R represents alkyl with 1 to 4 carbon atoms, R 1 and R 2 represent hydrogen or alkyl with 1 to 4 carbon atoms and each of A 1 and A 2 represents a vattable radical with 3 to 7 condensed rings are characterized by improved resistance to alkali and are suitable for dyeing and printing the most diverse materials, in particular fibers made from natural or regenerated cellulose.
Inventors
- 👤 Hans Altermatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
C; C09; C09B; C09B5/00; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/46; C09B1/467; C09B1/48; C09B3/00; D; D06; D06P; D06P1/00; D06P1/22; D06P1/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
87 words
A vat dyestuff of the formula ##EQU2##wherein R is alkyl with 1 to 4 carbon atoms, R 1 and R 2 each is independently hydrogen or alkyl with 1 to 4 carbon atoms and A 1 and A 2 each is independently anthraquinonyl which is optionally substituted by halogen, lower alkyl, lower alkoxy, lower alkanoyl, amino, phenylamino, benzoylamino, halobenzoylamino, phenylbenzoylamino, N,N-diloweralkyl-sulphamidobenzoylamino, lower alkylphenylsulphonylamino and phenylthio, phthaloylacridonyl which is optionally substituted by halogen and trifluoromethyl, benzanthronyl which is optionally substituted by lower alkyl, isothiazolanthronyl, phenylanthrapyrimidinyl and 4-(benzoylaminoanthraquinonyl)-6-lower alkylthio-s-triazin-(2)-yl-amino-1,1'-dianthrimide-2,2'-carbazole.
Claim 2
Dependent Claim
87 words
A vat dyestuff of the formula ##EQU2##wherein R is alkyl with 1 to 4 carbon atoms, R 1 and R 2 each is independently hydrogen or alkyl with 1 to 4 carbon atoms and A 1 and A 2 each is independently anthraquinonyl which is optionally substituted by halogen, lower alkyl, lower alkoxy, lower alkanoyl, amino, phenylamino, benzoylamino, halobenzoylamino, phenylbenzoylamino, N,N-diloweralkyl-sulphamidobenzoylamino, lower alkylphenylsulphonylamino and phenylthio, phthaloylacridonyl which is optionally substituted by halogen and trifluoromethyl, benzanthronyl which is optionally substituted by lower alkyl, isothiazolanthronyl, phenylanthrapyrimidinyl and 4-(benzoylaminoanthraquinonyl)-6-lower alkylthio-s-triazin-(2)-yl-amino-1,1'-dianthrimide-2,2'-carbazole.
Claim 3
Dependent Claim
73 words
A vat dyestuff according to claim 1 of the formula ##STR6##wherein R is alkyl with 1 to 4 carbon atoms and A 1 and A 2 each is independently anthraquinonyl which is bound in 1- or 2-position and which is optionally substituted by halogen, lower alkyl, lower alkoxy, lower alkanoyl, amino, phenylamino, benzoylamino, halobenzoylamino and phenylthio, or is 3,4-phthaloylacridonyl which is bound in 2- or 8-position and which is optionally substituted by halogen.
Claim 4
Dependent Claim
31 words
A vat dyestuff according to claim 2, of the formula ##SPC11## wherein one of the two substituents R 1 ' and R 2 ' is hydrogen and the other is benzoylamino.
References Cited (Backward Citations)
US3787406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |