US4015934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dyeing of synthetic textile material
Assignee: Novartis Corp
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Filing: 1973-11-12
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Granted: 1977-04-05
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Expires: 1993-11-12
Abstract
Abstract A process for dyeing synthetic textile material in a halogenated hydrocarbons solvent by the exhaust process, comprising the use, for dyeing, of azopyridone dyestuffs of formula I ##STR1## wherein R 1 and R 2 each independently represent hydrogen, or an optionally substituted lower alkyl, lower alkenyl, cycloalky or aryl radical, or R 1 and R 2 form together with the nitrogen atom binding them, optionally with the inclusion of a further hetero atom, a non-aromatic 5- or 6-membered hetero ring, X represents halogen, the cyano or nitro group, Y represents hydrogen, or a lower alkyl group optionally substituted by the hydroxyl or cyano group, and Z represents --CO-- or --SO 2 --.
Inventors
- 👤 Hans Wilhelm Liechti
- 👤 Jurgen Markert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:07
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/34; C09B29/36; C09B29/3604; C09B29/3617; C09B29/3621; C09B29/3626; C09B29/363; D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06P1/924
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
112 words
A process for dyeing synthetic textile material by the exhaust process, comprising the step of treating the textile material with a dispersion in a halogenated hydrocarbon solvent material of an azopyridone dyestuff of the formula ##STR52## wherein R 1 and R 2 each independently represent hydrogen, or an optionally substituted lower alkyl, lower alkenyl, cycloalkyl or aryl radical, or R 1 and R 2 form together with the nitrogen atom binding them, optionally with the inclusion of a further hetero atom, a non-aromatic 5- or 6-membered hetero ring, Y represents hydrogen, or a lower alkyl group optionally substituted by the hydroxyl or cyano group, and Z represents --CO-- or --SO 2 --.
Claim 2
Dependent Claim
112 words
A process for dyeing synthetic textile material by the exhaust process, comprising the step of treating the textile material with a dispersion in a halogenated hydrocarbon solvent material of an azopyridone dyestuff of the formula ##STR52## wherein R 1 and R 2 each independently represent hydrogen, or an optionally substituted lower alkyl, lower alkenyl, cycloalkyl or aryl radical, or R 1 and R 2 form together with the nitrogen atom binding them, optionally with the inclusion of a further hetero atom, a non-aromatic 5- or 6-membered hetero ring, Y represents hydrogen, or a lower alkyl group optionally substituted by the hydroxyl or cyano group, and Z represents --CO-- or --SO 2 --.
Claim 3
Dependent Claim
34 words
The process of claim 1 wherein of R 1 and R 2 one R represents hydrogen or a lower alkyl group, and the other R the phenyl or cyclohexyl group, and Z represents --CO--.
Claim 4
Dependent Claim
13 words
The process of claim 1, wherein Y represents hydrogen or the β-hydroxyethyl group.
Claim 5
Dependent Claim
15 words
The process of claim 1, wherein the halogenated hydrocarbon is a halogenated, lower aliphatic hydrocarbon.
Claim 6
Dependent Claim
17 words
The process of claim 4, wherein a chlorinated hydrocarbon boiling between 70° and 130° C is employed.
Claim 7
Dependent Claim
11 words
The process of claim 5, wherein the chlorinated hydrocarbon is tetrachloroethylene.
Claim 8
Dependent Claim
19 words
The process of claim 1, wherein the azopyridone dyestuff is finely dispersed, having a particle size below 5 μ.
Claim 9
Dependent Claim
17 words
The process of claim 1, wherein dyeing is performed at temperatures of between 120° and 150° C.
Claim 10
Dependent Claim
23 words
The process of claim 1, wherein the synthetic textile material is made from linear, high-molecular esters of aromatic polycarboxylic acids with polyfunctional alcohols.
Claim 11
Dependent Claim
15 words
The process of claim 9, wherein the synthetic textile material is polyethylene glycol terephthalate fibre.
Claim 12
Dependent Claim
10 words
The dyed synthetic textile material, dyed according to claim 1.
Claim 13
Dependent Claim
15 words
The dyed synthetic textile material of claim 11, wherein the textile material is polyester material.
Claim 14
Dependent Claim
36 words
The process of claim 1, wherein R 1 represents hydrogen or a lower alkyl group, R 2 represents the phenyl or cyclohexyl group. Y represents hydrogen or the β-hydroxyethyl group, and Z represents --SO 2 --.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |