Patent US3350376A successfully refreshed from Google Patents.
US3350376A
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US
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Method of carrying out polymerization processes
Assignee: BASF SE
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Filing: 1963-03-25
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Granted: 1967-10-31
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Wisseroth Karl
- 👤 Pietsch Walter
- 👤 Kastning Ernst-Guenther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:59
CPC Classifications
C; C08; C08F; C08F10/00; B; B01; B01J; B01J19/00; B01J19/0006; B01J19/0013; B01J19/18; B01J19/1868; B01J19/1881; B01J8/00; B01J8/08; B01J8/10; C08F10/02; C08F2/00; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00103; B01J2219/00162; B01J2219/00164; B01J2219/18; B01J2219/185; C08F110/00; C08F110/02; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582; Y10; Y10S; Y10S526/00; Y10S526/901; Y10S526/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A CONTINUOUS PROCESS FOR POLYMERIZING A MONOMERIC GASEOUS REACTANT AT A PRESSURE UP TO 100 ATMOSPHERES, THE IMPROVEMENT WHICH COMPRISES CONTROLLING THE TEMPERATURE WITHIN THE REACTION ZONE BY INTRODUCING INTO SAID REACTION ZONE AN AMOUNT OF GASEOUS REACTANT 5 TO 15 TIMES IN EXCESS OF THAT REQUIRED FOR THE POLYMERIZATION WITH A JOULE-THOMPSON THROTTLED EXPANSIONB FROM A PRESSURE SUABSTANTIALLY HIGHER THAT THE APRESSURE WITHIN SAID REACTION ZONE SUCH THAT THE JOULE-THOMPSON COOLING EFFECT OF THE THROTTLED GASEOUS REACTANT IS SUFFICENT TO NEUTRALIZE THE EXCESS EXOTHERMIC HEAT OF POLYMERIZATION, WITHDRAWING THE EXCESS UNPOLYMERIZED AGASEOUS REACTANT FROM THE REACTION ZONE, RECOMPRESSING SAID WITHDRAWN AND UNPOLYMERIZED GASEOUS REACTANT TO A PRESSURE SUBSTANTIALLY HIGHER THAN THE PRESSURE WITHIN THE REACTION ZONE, COOLING THE RECOMPRESSED GASEOUS REACTANT AND RECYCLING
Claim 2
Dependent Claim
125 words
IN A CONTINUOUS PROCESS FOR POLYMERIZING A MONOMERIC GASEOUS REACTANT AT A PRESSURE UP TO 100 ATMOSPHERES, THE IMPROVEMENT WHICH COMPRISES CONTROLLING THE TEMPERATURE WITHIN THE REACTION ZONE BY INTRODUCING INTO SAID REACTION ZONE AN AMOUNT OF GASEOUS REACTANT 5 TO 15 TIMES IN EXCESS OF THAT REQUIRED FOR THE POLYMERIZATION WITH A JOULE-THOMPSON THROTTLED EXPANSIONB FROM A PRESSURE SUABSTANTIALLY HIGHER THAT THE APRESSURE WITHIN SAID REACTION ZONE SUCH THAT THE JOULE-THOMPSON COOLING EFFECT OF THE THROTTLED GASEOUS REACTANT IS SUFFICENT TO NEUTRALIZE THE EXCESS EXOTHERMIC HEAT OF POLYMERIZATION, WITHDRAWING THE EXCESS UNPOLYMERIZED AGASEOUS REACTANT FROM THE REACTION ZONE, RECOMPRESSING SAID WITHDRAWN AND UNPOLYMERIZED GASEOUS REACTANT TO A PRESSURE SUBSTANTIALLY HIGHER THAN THE PRESSURE WITHIN THE REACTION ZONE, COOLING THE RECOMPRESSED GASEOUS REACTANT AND RECYCLING
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |