US3075960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process with a complex metal hydride-aluminum trialkyl-titanium halide catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-10-20
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Granted: 1963-01-29
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Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 John R Lovett
- 👤 Jr Joseph M Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:14
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE PROCESS FOR THE POLYMERIZATION OF AN ALPHA OLEFIN BY A LOW PRESSURE POLYMERIZATION PROCESS COMPRISING THE STEPS OF POLYMERIZING AN OLPHA OLEFIN HAVING FROM 2 TO 5 CARBON ATOMS IN AN INERT HYDROCARBON DILUENT WITH A CATALYST SYSTEM CONSISTING ESSENTIALLY OF (1) A HALIDE OF TITANIUM COCRYSTALLIZED WITH AN ALUMINUM HALIDE, (2) FROM 0.5 TO 3.0 MOLES OF A TRIALKYL ALUMINUM COMPOUND PER MOLE OF TITANIUM HALIDE, (3) ABOUT 1.5 TO 2.5 MOLES OF A GROUP I AND A GROUP III MIXED METAL HYDRIDE PER MOLE OF TRIALKYL ALUMINUM COMPOUND; AND ISOLATING THE RESULTING ALPHA OLEFIN POLYMERS.
Claim 2
Dependent Claim
98 words
THE PROCESS FOR THE POLYMERIZATION OF AN ALPHA OLEFIN BY A LOW PRESSURE POLYMERIZATION PROCESS COMPRISING THE STEPS OF POLYMERIZING AN OLPHA OLEFIN HAVING FROM 2 TO 5 CARBON ATOMS IN AN INERT HYDROCARBON DILUENT WITH A CATALYST SYSTEM CONSISTING ESSENTIALLY OF (1) A HALIDE OF TITANIUM COCRYSTALLIZED WITH AN ALUMINUM HALIDE, (2) FROM 0.5 TO 3.0 MOLES OF A TRIALKYL ALUMINUM COMPOUND PER MOLE OF TITANIUM HALIDE, (3) ABOUT 1.5 TO 2.5 MOLES OF A GROUP I AND A GROUP III MIXED METAL HYDRIDE PER MOLE OF TRIALKYL ALUMINUM COMPOUND; AND ISOLATING THE RESULTING ALPHA OLEFIN POLYMERS.
References Cited (Backward Citations)
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Cited
US2827447A
Cited
US2886561A
Cited
US2846427A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |