Patent US4251656A successfully refreshed from Google Patents.
US4251656A
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Cationic dyes
Assignee: BASF Corp
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Filing: 1978-06-13
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Granted: 1981-02-17
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Expires: 1998-06-13
Abstract
Abstract There are described new cationic dyes of the formula ##STR1## wherein R 's independently of one another each represent a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, X represents CH or N, R 1 represents hydrogen in the case where X=CH, or represents a straight-chain or branched-chain alkyl group having 1 to 6 carbon atoms in the case where X=N, Z represents unsubstituted or substituted alkylene which has 2 to 4 carbon atoms and which can be interrupted by one or more hetero atoms, n represents 0 or 1, and T represents an anion, and the rings A and/or B can optionally contain further substituents, processes for producing these dyes, and their use for dyeing and printing materials dyeable with cationic dyes, for dope dyeing textile materials consisting of homo- or copolymers of acrylonitrile, and for dyeing wet tow, by which means are obtained yellow dyeings having good fastness properties.
Inventors
- 👤 Peter Loew
- 👤 Rudolf Zink
- 👤 Stefan Koller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:16
CPC Classifications
C; C09; C09B; C09B26/00; C09B26/02; C09B23/00; C09B23/16; C09B23/162; C09B23/164
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
138 words
A cationic dye of the formula ##STR74## wherein R independently of one another is straight or branched chain alkyl of 1 to 4 carbon atoms, X is CH or N, R 1 is hydrogen where X is CH; or is straight or branched chain alkyl of 1 to 6 carbon atoms where X is N, Z is C 2 H 4 which is unsubstituted or substituted by C 1 -C 4 alkyl, n is 0 or 1, T is an anion, the ring A is further unsubstituted or substituted by halogen, nitro, straight or branched chain alkyl of 1 to 4 carbon atoms, or straight or branched chain alkoxy of 1 to 4 carbon atoms; and the ring B is further unsubstituted or substituted by halogen or straight or branched chain alkyl of 1 to 4 carbon atoms.
Claim 2
Dependent Claim
138 words
A cationic dye of the formula ##STR74## wherein R independently of one another is straight or branched chain alkyl of 1 to 4 carbon atoms, X is CH or N, R 1 is hydrogen where X is CH; or is straight or branched chain alkyl of 1 to 6 carbon atoms where X is N, Z is C 2 H 4 which is unsubstituted or substituted by C 1 -C 4 alkyl, n is 0 or 1, T is an anion, the ring A is further unsubstituted or substituted by halogen, nitro, straight or branched chain alkyl of 1 to 4 carbon atoms, or straight or branched chain alkoxy of 1 to 4 carbon atoms; and the ring B is further unsubstituted or substituted by halogen or straight or branched chain alkyl of 1 to 4 carbon atoms.
Claim 3
Dependent Claim
11 words
A cationic dye according to claim 1, wherein n is 1.
Claim 4
Dependent Claim
13 words
A cationic dye according to claim 1, wherein R is straight chain alkyl.
Claim 5
Dependent Claim
11 words
A cationic dye according to claim 3, wherein R is methyl.
Claim 6
Dependent Claim
17 words
A cationic dye according to claim 1, wherein the rings A and B are not further substituted.
Claim 7
Dependent Claim
40 words
A cationic dye according to claim 1, wherein the ring A is further substituted by halo, nitro, straight or branched chain alkyl of 1 to 4 carbon atoms or straight or branched chain alkoxy of 1 to 4 carbon atoms.
Claim 8
Dependent Claim
19 words
A cationic dye according to claim 1, wherein the ring B is further substituted by halo or by methyl.
Claim 9
Dependent Claim
32 words
A cationic dye according to claim 1, wherein the ring A is substituted by chloro in the p-position with respect to the N bond and the ring B is not further substituted.
Claim 10
Dependent Claim
19 words
A cationic dye according to claim 1, wherein R 1 is CH 3 or C 2 H 5 .
Claim 11
Dependent Claim
59 words
A cationic dye according to claim 1, which dye corresponds to the formula Ia ##STR75## wherein T has the meaning given, Z' represents C 2 H 4 group which is unsubstituted or substituted with C 1 -C 4 -alkyl, and the ring A is either unsubstituted, or substituted by chlorine, in the p-position with respect to the N bond.
Claim 12
Dependent Claim
14 words
A cationic dye according to claim 10, which dye corresponds to the formula ##STR76##
Claim 13
Dependent Claim
72 words
A cationic dye according to claim 1, which dye corresponds to the formula Ib ##STR77## wherein T has the meaning given, Z' is C 2 H 4 group which is unsubstituted or substituted with C 1 -C 4 -alkyl, and ring A is either unsubstituted, or substituted by chlorine, in the p-position with respect to the N bond, and R 1 ' represents the CH 3 or C 2 H 5 group.
Claim 14
Dependent Claim
14 words
A cationic dye according to claim 12, which dye corresponds to the formula ##STR78##
Claim 15
Dependent Claim
31 words
A cationic dye according to claim 1, which dye corresponds to the formula Ic ##STR79## wherein wherein the substituent in A is in the p-position with respect to the N bond.
Claim 16
Dependent Claim
33 words
A cationic dye according to claim 14, which dye corresponds to the formula Id ##STR80## wherein A' is unsubstituted or further substituted by chlorine in the p-position with respect to the N bond.
Claim 17
Dependent Claim
44 words
A cationic dye according to claim 1, which dye corresponds to the formula Ie ##STR81## wherein R 1 ' is CH 3 or C 2 H 5 , and wherein the substituent in A is in the p-position with respect to the N bond.
Claim 18
Dependent Claim
41 words
A cationic dye according to claim 16, which dye corresponds to the formula If ##STR82## wherein T has the meaning given under the formula I, and R 1 ' represents the CH 3 group or the C 2 H 5 group.
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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) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |