Patent US3055878A successfully refreshed from Google Patents.
US3055878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins
Assignee: Sunoco Inc
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Filing: 1959-06-18
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Granted: 1962-09-25
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Expires: 1979-06-18
Abstract
No abstract record available.
Inventors
- 👤 Edward J Janoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:13
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 CATALYST SYSTEM SUITABLE FOR POLYMERIZING AN ALPHAOLEFIN HAVING 2-10 CARBON ATOMS PER MOLECULE, HAVING NO BRANCHING ADJACENT THE DOUBLE BOND, WITH CONSISTS ESSENTIALLY OF A DISPERSION IN AS INERT HYDROCABON SEDIUM OF SOLID PARTICLES FORMED BY CONTACTING IN SAID MEDIUM A PREFORMED TITANIUM TRIHALIDE WITH A TERTIARY AMINE FOR A PERIOD OF AT LEAST ONE HOUR, AT A MOL RATIO OF AMINE TO TITANIUM TRIHALIDE IN THE RANGE OF 0.5 TO 10, AND THEREAFTER ADDING AN ALUMINUM ALKYL IN WHICH EACH ALKYL GROUP HAS 1-10 CARBON ATOMS, IN A MOL RATIO OF ALUMINUM ALKYL TO TITANIUM TRIHALIDE OF FROM 1:1 TO 5:1, AND AMINE HAVING THE FORMULA
Claim 2
Dependent Claim
108 words
A CATALYST SYSTEM SUITABLE FOR POLYMERIZING AN ALPHAOLEFIN HAVING 2-10 CARBON ATOMS PER MOLECULE, HAVING NO BRANCHING ADJACENT THE DOUBLE BOND, WITH CONSISTS ESSENTIALLY OF A DISPERSION IN AS INERT HYDROCABON SEDIUM OF SOLID PARTICLES FORMED BY CONTACTING IN SAID MEDIUM A PREFORMED TITANIUM TRIHALIDE WITH A TERTIARY AMINE FOR A PERIOD OF AT LEAST ONE HOUR, AT A MOL RATIO OF AMINE TO TITANIUM TRIHALIDE IN THE RANGE OF 0.5 TO 10, AND THEREAFTER ADDING AN ALUMINUM ALKYL IN WHICH EACH ALKYL GROUP HAS 1-10 CARBON ATOMS, IN A MOL RATIO OF ALUMINUM ALKYL TO TITANIUM TRIHALIDE OF FROM 1:1 TO 5:1, AND AMINE HAVING THE FORMULA
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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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |