Patent US2913540A successfully refreshed from Google Patents.
Patent US4041025A successfully refreshed from Google Patents.
US4041025A
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US
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P-Aminoazo disperse dyes
Assignee: BASF SE
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Filing: 1975-09-11
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Granted: 1977-08-09
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Expires: 1995-09-11
Abstract
Abstract Disperse dyes of the formula ##STR1## in which D is the radical of a diazo component, Y is a linear or branched, unsubstituted or substituted alkylene of one to four carbon atoms; R 1 is hydrogen, optionally substituted linear or branched alkyl of one to four carbon atoms, optionally substituted cycloalkyl or aralkyl, phenyl, or a radical of the formula: ##STR2## and R 2 is hydrogen or C 1 to C 6 alkyl which may bear chloro, bromo or cyano as a substituent; and D and the rings A and B may bear one or more further substituents other than --SO 3 H and --COOH; and also to their productions and their use for dyeing water-repellent fibrous materials. The dyes are eminently suitable for dyeing hydrophobic fibers, particularly polyesters, in yellow to blue-green shades of excellent fastness properties.
Inventors
- 👤 Karl Maier
- 👤 Guenter Hansen
- 👤 Wolf-Dieter Kermer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:42
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/06; C09B29/08; C09B29/0805; C09B29/0807; C09B29/0809; C09B29/0811; C09B29/0813; C09B31/00; C09B31/02; C09B31/04; C09B31/043; C09B43/00; C09B43/18; C09B43/20; C09B43/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
133 words
A compound of the formula ##STR190## in which D is thiadiazolyl substituted by methylmercapto, β-cyanoethylmercapto or β-C 1 - to C 4 -alkoxycarbonylmercapto; nitrothiazolyl; thienyl substituted by cyano, methyl, acetyl or C 1 - to C 4 -alkoxycarbonyl; or benzisothiazolyl substituted by chloro, bromo, cyano or nitro; R is hydrogen, methoxy or ethoxy, R 3 is hydrogen, methyl, chloro, acetylamino or propionylamino, R 1 is hydrogen, C 1 - to C 4 -alkyl, β-cyanoethyl, β-hydroxyethyl or -propyl, β-C 1 - to C 4 -alkoxycarbonylethyl, β-C 1 - to C 4 -alkoxyethyl or -propyl, cyclohexyl, benzyl, phenylethyl, phenyl or ##STR191## R 2 is hydrogen, C 1 - to C 4 -alkyl, β-chloroethyl or β-cyanoethyl and Y is --CH 2 CH 2 --, --CH 2 CH--CH 3 or --CH 2 CH-C 2 H 5 .
Claim 2
Dependent Claim
133 words
A compound of the formula ##STR190## in which D is thiadiazolyl substituted by methylmercapto, β-cyanoethylmercapto or β-C 1 - to C 4 -alkoxycarbonylmercapto; nitrothiazolyl; thienyl substituted by cyano, methyl, acetyl or C 1 - to C 4 -alkoxycarbonyl; or benzisothiazolyl substituted by chloro, bromo, cyano or nitro; R is hydrogen, methoxy or ethoxy, R 3 is hydrogen, methyl, chloro, acetylamino or propionylamino, R 1 is hydrogen, C 1 - to C 4 -alkyl, β-cyanoethyl, β-hydroxyethyl or -propyl, β-C 1 - to C 4 -alkoxycarbonylethyl, β-C 1 - to C 4 -alkoxyethyl or -propyl, cyclohexyl, benzyl, phenylethyl, phenyl or ##STR191## R 2 is hydrogen, C 1 - to C 4 -alkyl, β-chloroethyl or β-cyanoethyl and Y is --CH 2 CH 2 --, --CH 2 CH--CH 3 or --CH 2 CH-C 2 H 5 .
Claim 3
Dependent Claim
13 words
A compound according to the formula in claim 1, wherein R is hydrogen.
Claim 4
Dependent Claim
14 words
A compound according to the formula in claim 1, wherein R 2 is hydrogen.
Claim 5
Dependent Claim
17 words
A compound according to the formula in claim 1, wherein R 3 is hydrogen, methyl or acetylamino.
Claim 6
Dependent Claim
17 words
A compound according to the formula in claim 1, wherein Y is --CH 2 CH 2 --.
Claim 7
Dependent Claim
31 words
A compound according to the formula in claim 1, wherein R and R 2 are hydrogen, R 3 is hydrogen, methyl or acetylamino and Y is --CH 2 CH 2 --.
Claim 8
Dependent Claim
26 words
A compound according to the formula in claim 1, wherein R 1 is C 1 - to C 4 -alkyl, β-cyanoethyl, β-methoxy- or β-ethoxyethyl or phenylethyl.
Claim 9
Dependent Claim
10 words
The compound according to claim 1 of the formula ##STR192##
Claim 10
Dependent Claim
10 words
The compound according to claim 1 of the formula ##STR193##
References Cited (Backward Citations)
US3117118A
Cited
US3337522A
Cited
JPS4317304Y1
Cited
US3707533A
Cited
US3642767A
Cited
US3709872A
Cited
US3708468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |