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Patent US3837802A successfully refreshed from Google Patents.
US3837802A
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US
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Process for dyeing
Assignee: Novartis AG
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Filing: 1972-01-04
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Granted: 1974-09-24
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Expires: 1992-01-04
Abstract
Abstract A process for dyeing wherein textile material is dyed or printed with a solution containing at least one fiber-reactive dyestuff in a solvent.
Inventors
- 👤 Vuilleme J Guye
- 👤 E Koller
- 👤 A Litzler
- 👤 H Liechti
- 👤 B Milicevic
- 👤 H Angliker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:54
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/38; C; C09; C09B; C09B62/00; D06P1/90; D06P1/92; D06P1/922; D06P1/928; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924; Y10S8/927
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
18 words
A process according to claim 1 in which the solvent used is miscible with water in all proportions.
Claim 2
Dependent Claim
14 words
A process according to claim 1 in which the solvent is N,N-dimethylacetamide or N,N-dimethylformamide.
Claim 3
Dependent Claim
13 words
A process according to claim 1 in which the solvent used is N-methylpyrrolidone.
Claim 4
Dependent Claim
15 words
A process according to claim 1 in which the solvent used is tetramethylenesulphone, or 3-methylsulpholan.
Claim 5
Dependent Claim
15 words
A process according to claim 1 in which ethylene carbonate or butyrolactone is the solvent.
Claim 6
Dependent Claim
18 words
A process according to claim 1 in which there is incorporated in the dyeing solution a non-ionic surfactant.
Claim 7
Dependent Claim
46 words
A process according to claim 1 in which the fiber-reactive dyestuff contains a heterocyclic rEsidue selected from s-triazinyl containing one or two halogen atoms, said halogen atoms being selected from chlorine or bromine, or pyrimidyl containing one or two chlorine atoms or phenylsulphonyl or methylsulphonyl groups.
Claim 8
Dependent Claim
37 words
A process according to claim 1 in which the fiber-reactive dyestuff contains an aliphatic acyl group selected from gamma -chlorocrotonylamino, Alpha , Beta -dibromocrotonylamino, Beta , Beta ''-dibromoacrylamino, Alpha -chloroacrylamino, Alpha , Beta -bromoacrylamino, monochloroacetyl and monochloroacetylamino.
Claim 9
Dependent Claim
20 words
A process according to claim 1 in which the fabric is dried by evaporation prior to fixation of the dyestuff.
References Cited (Backward Citations)
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |