US3083075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing regenerated cellulose fiber
Assignee: Individual
•
Filing: 1962-07-09
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Granted: 1963-03-26
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Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 William R Saxton
- 👤 Michael R H Bolton
- 👤 Joseph R Rainville
- 👤 Anthony J Petricola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:07
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; Y; Y10; Y10S; Y10S264/00; Y10S264/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PROCESS OF MANUFACTURING REGENRATED CELLULOSE FIBER SUITABLE FOR USE AS A SUBSTITUE FOR NATURAL FIBERS INCLYDING COTTON FIBERS IN TEXTILES TO BE LAUNDERED COMPRISING SPINNING VISCOSE INTO A SPINBATH HAVING A TEMPERATURE IN THE RANGE OF ABOUT 0*C. TO 40*C., THE VISCOSE HAVING A GAMMA VALUE IN THE RANGE OF ABOUT 45 TO 65 AND A CELLULOSE TO SODIUM HYDROXIDE RATIO IN THE RANGE OF ABOUT 1.05/1 TO 1.70/1 PARTS BY WEIGHT AND THE SPINBATH HAVING SODIUM SULFATE AND SULFURIC ACID CONCENTRATIONS IN GRAMS PER LITER IN ACCORDANCE WITH THE EQUATIONS NA2S04=240-130 (WEIGHT OF CELLULOSE/WEIGHT OF SODIUM HYDROXIDE) H2SO4=150-60 (WEIGHT OF CELLULOSE/WEIGHT OF SODIUM HYDROXIDE) THE FIBER RESULTING FROM THE SPINNING HAVING A WET INITIAL MODULUS AT 5% STRAIN OF FROM ABOUT 10 TO 20 GRAMS PER DENIER, A WET BREAKING TENACITY OF FROM ABOUT 1.57 TO 2.8 GRAMS PER DENIER, AND A SECONDARY SWELING OF FROM ABOUR 1.70 TO 1.90.
Claim 2
Dependent Claim
152 words
A PROCESS OF MANUFACTURING REGENRATED CELLULOSE FIBER SUITABLE FOR USE AS A SUBSTITUE FOR NATURAL FIBERS INCLYDING COTTON FIBERS IN TEXTILES TO BE LAUNDERED COMPRISING SPINNING VISCOSE INTO A SPINBATH HAVING A TEMPERATURE IN THE RANGE OF ABOUT 0*C. TO 40*C., THE VISCOSE HAVING A GAMMA VALUE IN THE RANGE OF ABOUT 45 TO 65 AND A CELLULOSE TO SODIUM HYDROXIDE RATIO IN THE RANGE OF ABOUT 1.05/1 TO 1.70/1 PARTS BY WEIGHT AND THE SPINBATH HAVING SODIUM SULFATE AND SULFURIC ACID CONCENTRATIONS IN GRAMS PER LITER IN ACCORDANCE WITH THE EQUATIONS NA2S04=240-130 (WEIGHT OF CELLULOSE/WEIGHT OF SODIUM HYDROXIDE) H2SO4=150-60 (WEIGHT OF CELLULOSE/WEIGHT OF SODIUM HYDROXIDE) THE FIBER RESULTING FROM THE SPINNING HAVING A WET INITIAL MODULUS AT 5% STRAIN OF FROM ABOUT 10 TO 20 GRAMS PER DENIER, A WET BREAKING TENACITY OF FROM ABOUT 1.57 TO 2.8 GRAMS PER DENIER, AND A SECONDARY SWELING OF FROM ABOUR 1.70 TO 1.90.
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |