US3160672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene polymerization with a trialkyl boron-trialkyl aluminum catalyst
Assignee: Ethyl Corp
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Filing: 1960-11-29
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Granted: 1964-12-08
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Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 Tillmon H Pearson
- 👤 John K Presswood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:51
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS OF MANUFACTURE OF AN ALPHA OLEFIN HYDROCARBON PRODUCT CONSISTING ESSENTIALLY OF OLEFINS OF FROM 4 TO ABOUT 30 CARBON ATOMS AND PREDOMINATING IN NORMAL ALPHA OLEFINS, COMPRISING REACTING ETHYLENE IN THE PRESENCE OF A REACTION SYSTEM INCLUDING A CATALYST CONSISTING OF A TRIALKYL BORON COMPONENT AND A TRIALKYL ALUMINUM COMPONENT, THE BORON COMPONENT BEING IN THE PORPORTIONS OF FROM ABOUT ONE-FOURTH TO TEN MOLES PER MOLE OF THE ALUMINUM, THE REACTION BEING CONDUCTED AT A TEMPERATURE OF FROM ABOUT 140*C. AND 225*C. AND AT A PRESSURE BELOW ABOUT 7,000 AND ABOVE 700 POUNDS PER SQUARE INCH OR THE PRESSURE GIVEN BY THE EXPRESSION
Claim 2
Dependent Claim
105 words
THE PROCESS OF MANUFACTURE OF AN ALPHA OLEFIN HYDROCARBON PRODUCT CONSISTING ESSENTIALLY OF OLEFINS OF FROM 4 TO ABOUT 30 CARBON ATOMS AND PREDOMINATING IN NORMAL ALPHA OLEFINS, COMPRISING REACTING ETHYLENE IN THE PRESENCE OF A REACTION SYSTEM INCLUDING A CATALYST CONSISTING OF A TRIALKYL BORON COMPONENT AND A TRIALKYL ALUMINUM COMPONENT, THE BORON COMPONENT BEING IN THE PORPORTIONS OF FROM ABOUT ONE-FOURTH TO TEN MOLES PER MOLE OF THE ALUMINUM, THE REACTION BEING CONDUCTED AT A TEMPERATURE OF FROM ABOUT 140*C. AND 225*C. AND AT A PRESSURE BELOW ABOUT 7,000 AND ABOVE 700 POUNDS PER SQUARE INCH OR THE PRESSURE GIVEN BY THE EXPRESSION
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) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |