US3034992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing catalyst composites
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1958-03-19
•
Granted: 1962-05-15
•
Expires: 1978-03-19
Abstract
No abstract record available.
Inventors
- 👤 Tornqvist Erik
- 👤 Seelbach Charles William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:08
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A METHOD OF PREPARING A POLYMERIZATION CATALYST COMPOSITE WHICH COMPRISES INTIMATELY CONTACTING A REDUCED HEAVY TRANSISTION METAL HALIDE OF GROUP IVB OF THE PERIODIC TABLE, ADMIXED WITH A HALIDE OF A METAL SELECTED FROM THE CLASS CONSISTING OF METALS OF THE GROUP IIIB OF THE PERIODIC TABLE WITH AN 0.5-5 MOLAR SOLUTION, IN AN INERT VOLATILE HYDROCARBON, OF AN ACTIVATING ALKYL ALUMINUM COMPOUND, AND DISTILLING OFF THE VOLATILE HYDROCARBON.
Claim 2
Independent Claim
69 words
A METHOD OF PREPARING A POLYMERIZATION CATALYST COMPOSITE WHICH COMPRISES INTIMATELY CONTACTING A REDUCED HEAVY TRANSISTION METAL HALIDE OF GROUP IVB OF THE PERIODIC TABLE, ADMIXED WITH A HALIDE OF A METAL SELECTED FROM THE CLASS CONSISTING OF METALS OF THE GROUP IIIB OF THE PERIODIC TABLE WITH AN 0.5-5 MOLAR SOLUTION, IN AN INERT VOLATILE HYDROCARBON, OF AN ACTIVATING ALKYL ALUMINUM COMPOUND, AND DISTILLING OFF THE VOLATILE HYDROCARBON.
References Cited (Backward Citations)
US2721189A
Cited
US2900374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |