US3963747A
Expired / Lapsed
US
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Basic arylmercaptonaphtholactam dyes
Assignee: BASF SE
•
Filing: 1974-05-30
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Granted: 1976-06-15
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Expires: 1994-05-30
Abstract
Abstract Basic dyes of the naphtholactam series substituted by an arylmercapto radical. The dyes are eminently suitable for dyeing anionically modified fibers, particularly acrylonitrile polymers, and give blue to blue green shades of excellent fastness properties.
Inventors
- 👤 Ernst Schefczik
- 👤 Klaus Grychtol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:09
CPC Classifications
C; C09; C09B; C09B57/00; C09B57/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
A dye of the formula ##SPC20## in which A is p-phenylene or 1,4-naphthylene, R is hydrogen, alkyl of 1 to 4 carbon atoms, hydroxyalkyl of 2 or 3 carbon atoms, cyanoethyl, carbamoylethyl, carbalkoxyethyl with 1 to 4 carbon atoms in the alkoxy or benzyl, R 1 is hydrogen, methoxy or ethoxy, R 2 is hydrogen or methoxy, X is ##SPC21## X and R 2 together are ##SPC22## S being para to the nitrogen, R 3 is hydrogen, chlorine, methyl, methoxy or ethoxy, R 4 is alkyl of 1 to 4 carbon atoms, chloroalkyl of 2 or 3 carbon atoms, cyanoethyl, benzyl, phenylethyl, cyclohexyl, phenyl, methoxyphenyl or ethoxyphenyl, R 5 is hydrogen, alkyl of 1 to 4 carbon atoms or chloroalkyl of 2 or 3 carbon atoms, R 4 and R 5 together with the nitrogen are pyrrolidino, and X - is an anion.
Claim 2
Dependent Claim
143 words
A dye of the formula ##SPC20## in which A is p-phenylene or 1,4-naphthylene, R is hydrogen, alkyl of 1 to 4 carbon atoms, hydroxyalkyl of 2 or 3 carbon atoms, cyanoethyl, carbamoylethyl, carbalkoxyethyl with 1 to 4 carbon atoms in the alkoxy or benzyl, R 1 is hydrogen, methoxy or ethoxy, R 2 is hydrogen or methoxy, X is ##SPC21## X and R 2 together are ##SPC22## S being para to the nitrogen, R 3 is hydrogen, chlorine, methyl, methoxy or ethoxy, R 4 is alkyl of 1 to 4 carbon atoms, chloroalkyl of 2 or 3 carbon atoms, cyanoethyl, benzyl, phenylethyl, cyclohexyl, phenyl, methoxyphenyl or ethoxyphenyl, R 5 is hydrogen, alkyl of 1 to 4 carbon atoms or chloroalkyl of 2 or 3 carbon atoms, R 4 and R 5 together with the nitrogen are pyrrolidino, and X - is an anion.
Claim 3
Dependent Claim
27 words
A dye according to the formula in claim 1 in which A is p-phenylene and the X ortho to the five-membered ring and R 1 are hydrogen.
Claim 4
Dependent Claim
27 words
A dye according to the formula in claim 1 in which R is methyl, ethyl, β-cyanoethyl or β-carbalkoxyethyl of 1 to 4 carbon atoms in the alkoxy.
Claim 5
Dependent Claim
37 words
A dye according to the formula in claim 1 in which R 4 is alkyl of 1 to 4 carbon atoms, β-cyanoethyl, benzyl, phenyl, methoxyphenyl or ethoxyphenyl, and R 5 is alkyl of 1 to 4 atoms.
Claim 6
Dependent Claim
74 words
A dye as set forth in claim 1 in which R is methyl, ethyl, β-cyanoethyl or β-carbalkoxyethyl of 1 to 4 carbon atoms in the alkoxy, R 4 is alkyl of 1 to 4 carbon atoms, β-cyanoethyl, benzyl, phenyl, methoxyphenyl or ethoxyphenyl, R 5 is alkyl of 1 to 4 carbon atoms, R 2 is hydrogen and X is ##SPC23## or X and R 2 together are ##SPC24## and X - is an anion.
References Cited (Backward Citations)
US3769297A
Cited
US3853911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |