US3030350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst compositions and catalytic olefin polymerization
Assignee: Shell USA Inc
•
Filing: 1958-02-18
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Granted: 1962-04-17
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Expires: 1978-02-18
Abstract
No abstract record available.
Inventors
- 👤 Jong Johan R De
- 👤 Johan M Goppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:23
CPC Classifications
C; C08; C08F; C08F10/00; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A CATALYST COMPOSITION EFFECTIVE IN CATALYST THE POLYMERIZATION OF OLEFINS WHICH CONSISTS ESSENTIALLY OF A STABLE SUSPENSION OF A PARTICULATE ZIEGLER-TYPE LOWPRESSURE POLYMERIZATION CATALYST IN AN ESSENTIALLY HYDROCARBON LIQUID WHICH HAS A VISCOSITY ABOVE 5 CENTISTOKES AT THE LOWEST TEMPERATURE OCCURING DURING THE FORMATION, TRANSPARATION AND STORAGE OF AID SUSPENSION, SAID CATALYST BEING THE PRODUCT OF MIXING AT LEAST ONE HALIDE OF A METAL OF GROUPS IV TO VI, INCLUSIVE, OF THE PERIODIC TABLE WITH AN ALUMIUNUM ALKYL.
Claim 2
Dependent Claim
78 words
A CATALYST COMPOSITION EFFECTIVE IN CATALYST THE POLYMERIZATION OF OLEFINS WHICH CONSISTS ESSENTIALLY OF A STABLE SUSPENSION OF A PARTICULATE ZIEGLER-TYPE LOWPRESSURE POLYMERIZATION CATALYST IN AN ESSENTIALLY HYDROCARBON LIQUID WHICH HAS A VISCOSITY ABOVE 5 CENTISTOKES AT THE LOWEST TEMPERATURE OCCURING DURING THE FORMATION, TRANSPARATION AND STORAGE OF AID SUSPENSION, SAID CATALYST BEING THE PRODUCT OF MIXING AT LEAST ONE HALIDE OF A METAL OF GROUPS IV TO VI, INCLUSIVE, OF THE PERIODIC TABLE WITH AN ALUMIUNUM ALKYL.
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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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |