US3063798A
Expired / Lapsed
US
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Alpha olefin polymerization catalysts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-02-01
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Granted: 1962-11-13
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Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur Walter Langer
- 👤 Mertzweiller Joseph Kern
- 👤 Gamble Leon Walter
- 👤 Tornqvist Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:16
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR PREPARING A TITANIUM HALIDE CATALYST INTERMEDIATE COMPRISING THE STEPS OF (1) HEATING A BROWN PRECIPITATE COPMPRISING SUBSTANTIALLY AMORPHOUS TICI3 IN SLURRY FORM IN THE PRESENCE OF A HYDROCARBON DILUENT UNREACTIVE TO THE TICI3 TO A TEMPERATURE IN THE RANGE OF 70 TO 300*C., AND (2) MAINTAINING THIS TEMPERATURE FOR A TIME IN THE RANGE OF 5 MINS. TO 10 HRS. UNTIL THE BROWN PRECIPITATE IS CONVERTED TO A VIOLET PRECIPITATE COMPRISING AN AT LEAST SEMI-CRYSTALLINE FORM OF TICI3; SAID HEATING TIME IS LONGER AT LOWER CONVERSION TEMPERATURES; AND THE CONCENTRATION OF TITANIUM IN THE DILUENT IS IN THE RANGE OF ABOUT 4 TO 120 GRAMS/LITER.
Claim 2
Dependent Claim
108 words
A PROCESS FOR PREPARING A TITANIUM HALIDE CATALYST INTERMEDIATE COMPRISING THE STEPS OF (1) HEATING A BROWN PRECIPITATE COPMPRISING SUBSTANTIALLY AMORPHOUS TICI3 IN SLURRY FORM IN THE PRESENCE OF A HYDROCARBON DILUENT UNREACTIVE TO THE TICI3 TO A TEMPERATURE IN THE RANGE OF 70 TO 300*C., AND (2) MAINTAINING THIS TEMPERATURE FOR A TIME IN THE RANGE OF 5 MINS. TO 10 HRS. UNTIL THE BROWN PRECIPITATE IS CONVERTED TO A VIOLET PRECIPITATE COMPRISING AN AT LEAST SEMI-CRYSTALLINE FORM OF TICI3; SAID HEATING TIME IS LONGER AT LOWER CONVERSION TEMPERATURES; AND THE CONCENTRATION OF TITANIUM IN THE DILUENT IS IN THE RANGE OF ABOUT 4 TO 120 GRAMS/LITER.
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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |