US4446326A
Expired / Lapsed
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Cationic naphtholactam dyestuffs
Assignee: Bayer AG
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Filing: 1981-09-30
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Granted: 1984-05-01
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Expires: 2001-09-30
Abstract
Abstract Cationic dyestuffs of the general formula <IMAGE> wherein R represents hydrogen or an alkyl radical with a maximum of 8 C atoms, which is optionally substituted by non-ionic radicals, R1 represents hydrogen or an alkyl radical with a maximum of 4 C atoms, which is optionally substituted by non-ionic radicals, and An- represents an anion, and wherein the benzene rings and naphthalene rings can contain non-ionic radicals which are customary in dyestuff chemistry, are used for dyeing natural and synthetic cationically dyeable fibres, and paper.
Inventors
- 👤 Alfred Brack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:35
CPC Classifications
C; C09; C09B; C09B57/00; C09B57/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
235 words
Cationic dyestuffs of the formula ##STR27## wherein R 2 represents hydrogen, C 1 - to C 4 -alkyl, which can be substituted by cyano, hydroxyl, C 1 - to C 4 -alkoxy, chlorine, C 1 - to C 4 -alkoxycarbonyl, aminocarbonyl, mono-C 1 - to C 4 -alkylaminocarbonyl or di-C 1 - to C 4 -alkylaminocarbonyl, R 3 represents hydrogen or C 1 - to C 4 -alkyl and R 4 represents hydrogen, chlorine, bromine, C 1 - to C 4 -alkylcarbonylamino, benzoylamino, methylsulphonylamino, phenylsulphonylamino, C 1 - to C 4 -alkylsulphonyl, phenylsulphonyl, aminosulphonyl, mono-C 1 - to C 4 -alkylaminosulphonyl, di-C 1 - to C 4 -alkylaminosulphonyl, monophenylaminosulphonyl, diphenylaminosulphonyl, C 1 - to C 4 -alkylmercapto, in which the alkyl radical can be substituted by carboxyl, C 1 - to C 4 -alkoxycarbonyl, hydroxyl, methoxy or ethoxy, or represents phenylmercapto, carboxyl, cyano or a radical of the formulae ##STR28## R 5 represents hydrogen, chlorine or bromine, R 6 and R 7 represent C 1 - to C 4 -alkyl, phenyl or benzyl, or, together with the nitrogen, represent a pyrrolidine, piperidine or morpholine ring, R 8 represents hydrogen, C 1 - to C 4 -alkyl, phenyl or benzyl and An - represents an anion, and wherein the phenyl radicals mentioned can be substituted with nonsterically hindering C 1 - to C 4 -alkyl, chlorine, bromine, hydroxyl or C 1 - to C 4 -alkoxy.
Claim 2
Dependent Claim
235 words
Cationic dyestuffs of the formula ##STR27## wherein R 2 represents hydrogen, C 1 - to C 4 -alkyl, which can be substituted by cyano, hydroxyl, C 1 - to C 4 -alkoxy, chlorine, C 1 - to C 4 -alkoxycarbonyl, aminocarbonyl, mono-C 1 - to C 4 -alkylaminocarbonyl or di-C 1 - to C 4 -alkylaminocarbonyl, R 3 represents hydrogen or C 1 - to C 4 -alkyl and R 4 represents hydrogen, chlorine, bromine, C 1 - to C 4 -alkylcarbonylamino, benzoylamino, methylsulphonylamino, phenylsulphonylamino, C 1 - to C 4 -alkylsulphonyl, phenylsulphonyl, aminosulphonyl, mono-C 1 - to C 4 -alkylaminosulphonyl, di-C 1 - to C 4 -alkylaminosulphonyl, monophenylaminosulphonyl, diphenylaminosulphonyl, C 1 - to C 4 -alkylmercapto, in which the alkyl radical can be substituted by carboxyl, C 1 - to C 4 -alkoxycarbonyl, hydroxyl, methoxy or ethoxy, or represents phenylmercapto, carboxyl, cyano or a radical of the formulae ##STR28## R 5 represents hydrogen, chlorine or bromine, R 6 and R 7 represent C 1 - to C 4 -alkyl, phenyl or benzyl, or, together with the nitrogen, represent a pyrrolidine, piperidine or morpholine ring, R 8 represents hydrogen, C 1 - to C 4 -alkyl, phenyl or benzyl and An - represents an anion, and wherein the phenyl radicals mentioned can be substituted with nonsterically hindering C 1 - to C 4 -alkyl, chlorine, bromine, hydroxyl or C 1 - to C 4 -alkoxy.
Claim 3
Dependent Claim
132 words
Cationic dyestuffs according to claim 1, wherein R 2 represents hydrogen, methyl, ethyl, propyl, butyl, β-cyanoethyl, β-hydroxyethyl, β-alkoxyethyl, β-chloroethyl, methoxycarbonylethyl, ethoxycarbonylethyl, methoxycarbonylmethyl or ethoxycarbonylmethyl, R 3 represents hydrogen, methyl or ethyl, and R 4 represents hydrogen, chlorine, bromine, acetamino, methylsulphonylamino, phenylsulphonylamino, C 1 - to C 4 -alkylsulphonyl, phenylsulphonyl, aminosulphonyl, mono-C 1 - to C 4 -alkylaminosulphonyl, di-C 1 - to C 4 -alkylaminosulphonyl, monophenylaminosulphonyl, diphenylaminosulphonyl, C 1 - to C 4 -alkylmercapto, in which the alkyl radical can be substituted by carboxyl, methoxycarbonyl, ethoxycarbonyl, hydroxyl, methoxy or ethoxy, or represents phenylmercapto or cyano, R 5 represents hydrogen, R 6 and R 7 represent methyl or phenyl, R 8 represents hydrogen or methyl, and An - represents an anion, and wherein the phenyl radicals mentioned can be substituted by methyl or chlorine.
Claim 4
Dependent Claim
11 words
Cationic dyestuffs according to claim 2, wherein R 3 represents hydrogen.
Claim 5
Dependent Claim
22 words
Cationic dyestuffs of the formula ##STR29## wherein R 9 represents methyl, ethyl or β-cyanoethyl, and R 10 represents hydrogen, chlorine or bromine.
Claim 6
Dependent Claim
22 words
Cationic dyestuffs of the formula ##STR29## wherein R 9 represents methyl, ethyl or β-cyanoethyl, and R 10 represents hydrogen, chlorine or bromine.
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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |