US3755281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous polymerisation process
Assignee: Orica Ltd
•
Filing: 1971-05-17
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Granted: 1973-08-28
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Expires: 1991-05-17
Abstract
Abstract A process of manufacturing particles which process comprises the following steps in combination A. FEEDING INTO A CLOSED REACTOR A NUTRIENT, A RECYCLE OF PARTICLES FROM STEP (C) AND OPTIONALLY ADDING SEED MATERIAL; B. ALLOWING THE RECYCLED PARTICLES TO GROW INTO LARGER PARTICLES AND SEPARATING THE RESULTANT PARTICLES INTO SIZED FRACTIONS; AND C. RECYCLING PARTICLES OF LESS THAN A CERTAIN PREDETERMINED SIZE TO STEP (A) AND REMOVING PARTICLES LARGER THAN A CERTAIN PREDETERMINED SIZE AS PRODUCT. Apparatus wherein this process may be carried out is also described.
Inventors
- 👤 B Busby
- 👤 D Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:48
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/02; B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; C08F259/00; C08F259/02; C08F259/04; Y; Y10; Y10S; Y10S526/00; Y10S526/909; Y10S526/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2762769A
Cited
US2979492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |