US2968541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrostarch composition and method of making the same
Assignee: Atlas Powder Co
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Filing: 1957-05-07
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Granted: 1961-01-17
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Expires: 1977-05-07
Abstract
No abstract record available.
Inventors
- 👤 Iii Paul E Wilt
- 👤 Richard G Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:53
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/02; C06B23/00; C06B23/009
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A METHOD OF INHIBITING DUSTING OF NITROSTARCH WHICH COMPRISES TREATING AN AUEOUS SLURRY OF NITROSTARCH WITH AN EMULSION COMPRISING FROM ABOUT .75% TO ABOUT 1.25% BASED ON THE DRY WEIGHT OF THE NITROSTARCH OF POLYBUTENE HAVING A VISCOSITY OF ABOUT 135 SSU (210*F.) TO ABOUT 620 SSU (210*F.), A HYDROCARBON HAVING A VISCOSITY OF ABOUT 2.5 SSU (100*F.) TO ABOUT 85 SSU (210*F.) AND AN EMULSIFIER SELECTED FROM THE GROUP CONSISTING OF POLYOXYETHYLENE ETHERS OF HIGHER FATTY AMINES AND THEREAFTER DRYING SAID TREATED NITROSTARCH WHICH COMPOSITION IS ESSENTIALLY NON-DUSTING AND FREE FLOWING.
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) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |