US3078265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of polymerization reactions
Assignee: Phillips Petroleum Co
•
Filing: 1957-09-12
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Granted: 1963-02-19
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Expires: 1977-09-12
Abstract
No abstract record available.
Inventors
- 👤 Donald E Berger
- 👤 Robert G Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:27
CPC Classifications
C; C08; C08F; C08F10/00; B; B01; B01J; B01J19/00; B01J19/0006; C08F110/00; C08F110/02; C08F2400/00; C08F2400/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A POLYMERIZATION PROCESS COMPRISING DIRECTING ETHYLENE, CYCOHEXANE AND A CATALYST COMPRISING CHROMIUM OXIDE ON A SILICIA-ALUMINA SUPPORT TO A REATION ZONE, AGITATING THE MIXTURE IN SAID ZONE, COOLING SAID ZONE, REMOVING POLYMERIZATION PRODUCTS FROM SAID ZNE, MEASURING THE HEAT ADDED TO SAID ZONE FROM THE INTRODUCTION OF MATERIALS AND THE AGITATION, MEASURING THE HEAT REMOVED FROM SAID ZONE FROM THE WITHDRAWAL OF MATERIAL AND THE COOLING, AND REGULATING THE FLOW OF CATALYST TO SAID ZONE TO TEND TO PRODUCE POLYMER AT A UNIFROM RATE, AS INDICATED BY MAINTAINING A CONSTANT DIFFERENCE BETWEEN THE HEAT REMOVED AND THE HEAT ADDED.
Claim 2
Dependent Claim
99 words
A POLYMERIZATION PROCESS COMPRISING DIRECTING ETHYLENE, CYCOHEXANE AND A CATALYST COMPRISING CHROMIUM OXIDE ON A SILICIA-ALUMINA SUPPORT TO A REATION ZONE, AGITATING THE MIXTURE IN SAID ZONE, COOLING SAID ZONE, REMOVING POLYMERIZATION PRODUCTS FROM SAID ZNE, MEASURING THE HEAT ADDED TO SAID ZONE FROM THE INTRODUCTION OF MATERIALS AND THE AGITATION, MEASURING THE HEAT REMOVED FROM SAID ZONE FROM THE WITHDRAWAL OF MATERIAL AND THE COOLING, AND REGULATING THE FLOW OF CATALYST TO SAID ZONE TO TEND TO PRODUCE POLYMER AT A UNIFROM RATE, AS INDICATED BY MAINTAINING A CONSTANT DIFFERENCE BETWEEN THE HEAT REMOVED AND THE HEAT ADDED.
References Cited (Backward Citations)
US2402137A
Cited
US2570056A
Cited
US2440882A
Cited
US2518307A
Cited
US2684326A
Cited
US2497323A
Cited
US2665197A
Cited
US2692257A
Cited
US2683141A
Cited
US2825721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |