Patent US3388076A successfully refreshed from Google Patents.
US3388076A
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Preparation of titanium catalyst
Assignee: Hercules LLC
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Filing: 1965-07-23
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Granted: 1968-06-11
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Expires: 1985-07-23
Abstract
No abstract record available.
Inventors
- 👤 Bayard T Lamborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:03
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; Y; Y10; Y10S; Y10S526/00; Y10S526/907; Y10S526/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR PREPARING A TITANIUM TRICHLORIDE CATALYST FOR USE IN THE POLYMERIZATION OF OLEFINS WHICH COMPRISES REACTING TICL4 WITH AN ORGANOALUMINUM COMPOUND IN AN INERT ORGANIC LIQUID DILUENT IN WHICH BOTH REACTANTS ARE SOLUBLE IN THE PRESENCE OF AN OXIDIZED RUBBERY HYDROCARBON POLYMER, SAID POLYMER BEING DISSOLVED IN SAID DILUENT IN THE AMOUNT OF ABOUT 0.01 TO 1 PART PER PART TO TICL4 BY WEIGHT.
Claim 2
Dependent Claim
66 words
A PROCESS FOR PREPARING A TITANIUM TRICHLORIDE CATALYST FOR USE IN THE POLYMERIZATION OF OLEFINS WHICH COMPRISES REACTING TICL4 WITH AN ORGANOALUMINUM COMPOUND IN AN INERT ORGANIC LIQUID DILUENT IN WHICH BOTH REACTANTS ARE SOLUBLE IN THE PRESENCE OF AN OXIDIZED RUBBERY HYDROCARBON POLYMER, SAID POLYMER BEING DISSOLVED IN SAID DILUENT IN THE AMOUNT OF ABOUT 0.01 TO 1 PART PER PART TO TICL4 BY WEIGHT.
References Cited (Backward Citations)
US1901045A
Cited
US2610110A
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US2660563A
Cited
GB834217A
Cited
US3065220A
Cited
US3030350A
Cited
US3042661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |