US3837802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing
Assignee: Novartis AG
•
Filing: 1972-01-04
•
Granted: 1974-09-24
•
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 21:47
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)
US3097043A
Cited
US3232692A
Cited
US3236586A
Cited
US3265461A
Cited
GB962523A
Cited
US3129053A
Cited
US3502495A
Cited
US3337288A
Cited
CH437204A
Cited
US3510243A
Cited
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 |