Patent US3281401A successfully refreshed from Google Patents.
US3281401A
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Polymerization utilizing a tertiary amine adjuvant
Assignee: Phillips Petroleum Co
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Filing: 1963-07-17
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Granted: 1966-10-25
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Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Harban
- 👤 Charles W Moberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:57
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROCESS FOR INCREASING THE RATE OF POLYMERIZATION OF PROPYLENE IN THE PRESENCE OF A CATALYST FORMED BY COMMINGLING DIETHYLALUMINUM CHLORIDE AND THE REACTION PRODUCT OF TITANIUM TETRACHLORIDE AND ALUMINUM HAVING THE APPROXIMATE FORMULA TICL3.1/3ALCL3 WHICH COMPRISES CONDUCTING SAID POLYMERIZATION IN THE PRESENCE OF SAID CATALYST HAVING ADDED THERETO A TERTIARY AMINE ADJUVANT OF THE FORMULA
Claim 2
Dependent Claim
56 words
A PROCESS FOR INCREASING THE RATE OF POLYMERIZATION OF PROPYLENE IN THE PRESENCE OF A CATALYST FORMED BY COMMINGLING DIETHYLALUMINUM CHLORIDE AND THE REACTION PRODUCT OF TITANIUM TETRACHLORIDE AND ALUMINUM HAVING THE APPROXIMATE FORMULA TICL3.1/3ALCL3 WHICH COMPRISES CONDUCTING SAID POLYMERIZATION IN THE PRESENCE OF SAID CATALYST HAVING ADDED THERETO A TERTIARY AMINE ADJUVANT OF THE FORMULA
References Cited (Backward Citations)
US3055878A
Cited
GB867139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |