US3930794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dyeing of synthetic fiber materials from organic solvents
Assignee: Hoechst AG
•
Filing: 1973-10-19
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Granted: 1976-01-06
•
Expires: 1993-10-19
Abstract
Abstract A process for the continuous dyeing of textile materials containing or consisting of synthetic fibrous materials from organic solvents, which comprises impregnating the said textile materials with an organic dyebath containing at least one dyestuff of the formula ##SPC1## In which the phenyl radical A is unsubstituted or substituted by 1 to 3 substituents of the group consisting of halogen, nitro, cyano, trifluoromethyl, lower alkyl, lower alkoxy and lower alkoxy-lower alkylene--O--, B represents naphthylene or ##SPC2## R 2 , r 3 , r 4 and R 5 each represent hydrogen, halogen, lower alkyl, lower alkoxy or lower alkoxy-lower alkylene--O--, and R 1 stands for a linear or branched alkylcarbonyl of at most 18 carbon atoms, ##SPC3## ##SPC4## ##SPC5## ##SPC6## And an organic solvent, and fixing the dyestuffs by submitting the impregnated materials to a heat treatment.
Inventors
- 👤 Walter Birke
- 👤 Rudolf Schickfluss
- 👤 Franz Schon
- 👤 Willi Steckelberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/922; D06P1/924; C; C09; C09B; C09B31/00; C09B31/02; C09B31/06; C09B31/062; C09B43/00; C09B43/18; C09B43/20; C09B43/202; C09B43/22; D06P1/908; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924; Y10S8/927; Y10S8/928
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
A process for the continuous dyeing of textile materials containing or consisting of synthetic fibrous materials from organic solvents, which comprises impregnating the said textile materials with an organic dyebath containing at least one dyestuff of the formula ##SPC26## in which the phenyl radical A is unsubstituted or substituted by 1 to 3 substituents of the group consisting of halogen, nitro, cyano, trifluoromethyl, lower alkyl, lower alkoxy and lower alkoxy-lower alkylene--O--, B represents naphthylene or ##SPC27## R 2 , r 3 , r 4 and R 5 each represent hydrogen, halogen, lower alkyl, lower alkoxy or lower alkoxy-lower alkylene--O--, and R 1 stands for a linear or branched alkylcarbonyl of at most 18 carbon atoms, ##SPC28## ##SPC29## ##SPC30## ##SPC31## and an organic solvent, and fixing the dyestuffs by submitting the impregnated materials to a heat treatment.
Claim 2
Dependent Claim
136 words
A process for the continuous dyeing of textile materials containing or consisting of synthetic fibrous materials from organic solvents, which comprises impregnating the said textile materials with an organic dyebath containing at least one dyestuff of the formula ##SPC26## in which the phenyl radical A is unsubstituted or substituted by 1 to 3 substituents of the group consisting of halogen, nitro, cyano, trifluoromethyl, lower alkyl, lower alkoxy and lower alkoxy-lower alkylene--O--, B represents naphthylene or ##SPC27## R 2 , r 3 , r 4 and R 5 each represent hydrogen, halogen, lower alkyl, lower alkoxy or lower alkoxy-lower alkylene--O--, and R 1 stands for a linear or branched alkylcarbonyl of at most 18 carbon atoms, ##SPC28## ##SPC29## ##SPC30## ##SPC31## and an organic solvent, and fixing the dyestuffs by submitting the impregnated materials to a heat treatment.
Claim 3
Dependent Claim
18 words
The process as claimed in claim 1, wherein at least one halogenated hydrocarbon is used as organic solvent.
Claim 4
Dependent Claim
18 words
The process as claimed in claim 1, wherein at least one aliphatic alcohol is used as organic solvent.
Claim 5
Dependent Claim
25 words
The process as claimed in claim 1, wherein a mixture consisting of a halogenated organic hydrocarbon and an aliphatic alcohol is used as organic solvent.
Claim 6
Dependent Claim
35 words
The process as claimed in claim 1, wherein the boiling limit benzines, methylene chloride, dichloro-ethane, trichloro-ethane, tetrachloro-ethane, dichloro-fluoromethane, dichloro-tetrafluoro-methane, octafluoro-cyclobutane, toluene, xylene, chlorobenzene, fluorobenzene, trichloro-fluoro-methane, 1,2,2-trichloro-1,1,2-trichloro-ethane, tetrachloroethylene, trichloroethylene and 1,1,1-trichloro-ethane are used as organic solvent.
Claim 7
Dependent Claim
16 words
The process as claimed in claim 1, wherein the dyeing is aftertreated in an organic solvent.
Claim 8
Dependent Claim
31 words
The process as claimed in claim 1, wherein the dyeing is aftertreated in the same organic solvent or mixture of organic solvents which had been used in the preceding dyeing process.
Claim 9
Dependent Claim
30 words
The process as claimed in claim 1, wherein a textile material consisting of or containing polyamides, polyurethanes, polyolefins, polyacrylonitriles, polyvinyl chlorides, polyvinyl acetates, cellulose--21/2-acetate, cellulose-triacetate or polyethylene terephthalate is dyed.
References Cited (Backward Citations)
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US2691027A
Cited
US2888452A
Cited
US3663161A
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US3684431A
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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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |