US4598151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic dyestuffs, a process for their preparation, and their use for dyeing and mass-coloring
Assignee: Bayer AG
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Filing: 1982-11-15
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Granted: 1986-07-01
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Expires: 2002-11-15
Abstract
Abstract Dyestuffs of the formula ##STR1## wherein R represents hydrogen or optionally substituted alkyl, A represents ##STR2## wherein R 1 represents hydrogen, optionally substituted alkyl or cycloalkyl and R 2 represents optionally substituted alkyl which can close a ring to ring B, aralkyl or aryl or R 1 and R 2 , together with the N atom, form a ring, D and E represent hydrogen, optionally substituted alkyl or alkenyl and D additionally represents aryl, aralkyl, aralkenyl or a heterocyclic radical, or D and E, together with the C atom, form a ring and An - represents an anion, are used for pulp-coloring paper and dyeing cationically dyeable fibres.
Inventors
- 👤 Hans-Peter Kuhlthau
- 👤 Horst Harnisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:32
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/56; C07D209/80; C07D209/90; C07D209/92; C09; C09B; C09B11/00; C09B11/02; C09B11/04; C09B11/26; C09B57/00; C09B57/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
127 words
A cationic dyestuff of the formula ##STR56## wherein R 6 represents hydrogen, C 1 - to C 4 -alkyl optionally substituted by cyano, hydroxyl, or chlorine, R 5 represents hydrogen, chlorine or bromine, A 1 represents ##STR57## wherein R 22 denotes hydrogen or C 1 - to C 6 -alkyl optionally substituted by 1-3 hydroxyl, 1-3 -halogen, or cyano, R 23 denotes C 1 - to C 6 -alkyl optionally substituted like R 22 , benzyl or phenyl, or, together with the ring B, tetrahydroquinoline, optionally substituted by C 1 - to C 4 -alkyl groups, R 7 denotes C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy or halogen and n denotes 1 to 4, and An - represents an anion.
Claim 2
Dependent Claim
127 words
A cationic dyestuff of the formula ##STR56## wherein R 6 represents hydrogen, C 1 - to C 4 -alkyl optionally substituted by cyano, hydroxyl, or chlorine, R 5 represents hydrogen, chlorine or bromine, A 1 represents ##STR57## wherein R 22 denotes hydrogen or C 1 - to C 6 -alkyl optionally substituted by 1-3 hydroxyl, 1-3 -halogen, or cyano, R 23 denotes C 1 - to C 6 -alkyl optionally substituted like R 22 , benzyl or phenyl, or, together with the ring B, tetrahydroquinoline, optionally substituted by C 1 - to C 4 -alkyl groups, R 7 denotes C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy or halogen and n denotes 1 to 4, and An - represents an anion.
Claim 3
Dependent Claim
122 words
A dyestuff according to claim 1, wherein R 6 represents C 1 - to C 4 -alkyl, β-cyanoethyl, β-hydroxyethyl, R 5 represents hydrogen and A 1 represents ##STR58## wherein R 11 denotes hydrogen or a C 1 - to C 4 -alkyl radical optionally substituted by hydroxyl, chlorine, cyano, R 12 denotes a C 1 - to C 4 -alkyl radical optionally substituted by hydroxyl, chlorine, or cyano, benzyl or phenyl optionally substituted by chlorine, methyl, methoxy or ethoxy, R 13 denotes hydrogen, methyl, chlorine, methoxy or ethoxy, A 1 represents ##STR59## wherein R 14 denotes hydrogen or C 1 - to C 4 -alkyl, C 2 - to C 4 -hydroxyalkyl, chloroethyl, cyanoethyl, and R 15 denotes hydrogen, methoxy or ethoxy.
Claim 4
Dependent Claim
81 words
A dyestuff of the formula ##STR60## wherein R 18 represents methyl, ethyl or β-cyanoethyl and A 2 represents ##STR61## wherein R 19 denotes hydrogen, methyl, ethyl, cyanoethyl, hydroxyethyl, chloroethyl, hydroxypropyl, propyl or butyl and R 20 denotes one of the alkyl groups mentioned for R 19 or phenyl, methoxyphenyl, ethoxyphenyl, methylphenyl or chlorophenyl, or A 2 represents ##STR62## wherein R 21 denotes hydrogen, C 1 - to C 4 -alkyl, hydroxyethyl, hydroxypropyl, cyanoethyl, chloroethyl, hydroxybutyl, and An - represents an anion.
Claim 5
Dependent Claim
81 words
A dyestuff of the formula ##STR60## wherein R 18 represents methyl, ethyl or β-cyanoethyl and A 2 represents ##STR61## wherein R 19 denotes hydrogen, methyl, ethyl, cyanoethyl, hydroxyethyl, chloroethyl, hydroxypropyl, propyl or butyl and R 20 denotes one of the alkyl groups mentioned for R 19 or phenyl, methoxyphenyl, ethoxyphenyl, methylphenyl or chlorophenyl, or A 2 represents ##STR62## wherein R 21 denotes hydrogen, C 1 - to C 4 -alkyl, hydroxyethyl, hydroxypropyl, cyanoethyl, chloroethyl, hydroxybutyl, and An - represents an anion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |