US2880052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing cellulose derivatives and aftertreating for improved washfastness
Assignee: Celanese Corp
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Filing: 1954-05-17
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Granted: 1959-03-31
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Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 Anthony B Conciatori
- 👤 Fortess Fred
- 👤 Victor S Salvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:49
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8223; D06P3/8238; D06P3/8242; D06P1/00; D06P1/44; D06P1/62; D06P1/621; D06P1/622; D06P1/623; D06P3/34; D06P3/40; D06P3/42; D06P3/58; D06P3/60; D06P3/6033; D06P5/00; D06P5/02; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
PROCESS FOR THE TREAMENT OF TEXILE MATERIAL COMPRISING FIBERS OF AN ORGANIC DERIVATIVE OF CELLULOSE, WHICH COMPRISES DYEING SAID TEXILE MATERIAL WITH A DISPERSED CELLULOSE ACETATE DYESTUFF CONTAINING A PLURALITY OF RADICALS SELECTED FROM THE GROUP CONSISTING OF AN NH2 GROUP, AN ALCOHOLIC HYDROXYL GROUP AND A PHENOLIC HYDROXYL GROUP, THEN APPLYING THE DYED TEXTILE MATERIAL A MIXTURE OF FORMALDEHYDE AND A SOLUBLE HEAT-CURABLE CONDENSATION PRODUCT OF FORMDALDEHYDE AND COMPOUND CONTAINING A REACTIVE-NH-GROUP, SAID CONDENSANTION PRODUCT CONTAINING A PLURALITY OF RADICALS SELECTED FROM THE GROUP CONSISTING OF H-HYDROXYMETHYL AND N-LOWER ALKOXMETHYL RADICALS, AND THEN HEATING SAID TEXTILE MATERIAL TO EFFECT A REACTION BETWEEN SAID DYESTUFF AND SAID CONDENSATION PRODUCT IN SAID FIBRES.
Claim 2
Dependent Claim
112 words
PROCESS FOR THE TREAMENT OF TEXILE MATERIAL COMPRISING FIBERS OF AN ORGANIC DERIVATIVE OF CELLULOSE, WHICH COMPRISES DYEING SAID TEXILE MATERIAL WITH A DISPERSED CELLULOSE ACETATE DYESTUFF CONTAINING A PLURALITY OF RADICALS SELECTED FROM THE GROUP CONSISTING OF AN NH2 GROUP, AN ALCOHOLIC HYDROXYL GROUP AND A PHENOLIC HYDROXYL GROUP, THEN APPLYING THE DYED TEXTILE MATERIAL A MIXTURE OF FORMALDEHYDE AND A SOLUBLE HEAT-CURABLE CONDENSATION PRODUCT OF FORMDALDEHYDE AND COMPOUND CONTAINING A REACTIVE-NH-GROUP, SAID CONDENSANTION PRODUCT CONTAINING A PLURALITY OF RADICALS SELECTED FROM THE GROUP CONSISTING OF H-HYDROXYMETHYL AND N-LOWER ALKOXMETHYL RADICALS, AND THEN HEATING SAID TEXTILE MATERIAL TO EFFECT A REACTION BETWEEN SAID DYESTUFF AND SAID CONDENSATION PRODUCT IN SAID FIBRES.
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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |