US2511103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pad dyeing of cellulose derivative fabrics with an alcoholic solution-followed by padding with an aqueous thiocyanate solution
Assignee: Celanese Corp
•
Filing: 1946-02-12
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Granted: 1950-06-13
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Expires: 1966-02-12
Abstract
No abstract record available.
Inventors
- 👤 Cyril M Croft
- 👤 Thomas S Waller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:05
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/928; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
PROCESS FOR THE COLORATION OF TEXTIL MATERIALS HAVING A BASIS OF AN ORGANIC DERIVATIVE OF CELLULOSE SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ESTERS AND CELLULOSE ETHERS IN LEVEL, WELL-PENETRATED SHADES, WHICH COMPRISES PADDING A TEXTILE MATERIAL HAVING A BASIS OF AN ORGANIC DERIVATIVE OF CELLULOSE WITH A DIRECT DYEING DYESTUFF IN AN AQUEOUS MEDIUM CONSISTING OF AN AQUEOUS SOLUTION OF A LOWER ALIPHATIC ALCHOL, AND THEN, AS A SEPARATE STEP, PADDING THE DYED ORGANIC DERIVATIVE OF CELLULOSE TEXTILE MATERIAL DIRECTLY AND WITHOUT DRYING AND WASHING WITH A RELATIVELY CON CENTRATED AQUEOUS SOLUTION OF A SALT OF THIOCYANIC ACID WHICH IS A SWELLING AGENT FOR THE ORGANIC DERIVATIVE OF CELLULOSE MATERIAL.
Claim 2
Dependent Claim
111 words
PROCESS FOR THE COLORATION OF TEXTIL MATERIALS HAVING A BASIS OF AN ORGANIC DERIVATIVE OF CELLULOSE SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ESTERS AND CELLULOSE ETHERS IN LEVEL, WELL-PENETRATED SHADES, WHICH COMPRISES PADDING A TEXTILE MATERIAL HAVING A BASIS OF AN ORGANIC DERIVATIVE OF CELLULOSE WITH A DIRECT DYEING DYESTUFF IN AN AQUEOUS MEDIUM CONSISTING OF AN AQUEOUS SOLUTION OF A LOWER ALIPHATIC ALCHOL, AND THEN, AS A SEPARATE STEP, PADDING THE DYED ORGANIC DERIVATIVE OF CELLULOSE TEXTILE MATERIAL DIRECTLY AND WITHOUT DRYING AND WASHING WITH A RELATIVELY CON CENTRATED AQUEOUS SOLUTION OF A SALT OF THIOCYANIC ACID WHICH IS A SWELLING AGENT FOR THE ORGANIC DERIVATIVE OF CELLULOSE MATERIAL.
References Cited (Backward Citations)
US2274751A
Cited
US1398357A
Cited
FR643323A
Cited
US1912008A
Cited
US2218628A
Cited
US2344973A
Cited
US2344974A
Cited
US2428835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |