US3119798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of solid olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1960-01-27
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Granted: 1964-01-28
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Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 Charles W Moberly
- 👤 Franzus Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:29
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A PROCESS FOR POLYMERIZING PROPYLENE IN WHICH SAID PROPYLENE IS CONTACTED WITH A CATALYST CONSISTING ESSENTIALLY OF A MIXTURE PREPARED BY ADMIXING TRIALKYLALUMINUM AND A TITANIUM HALIDE IN THE PRESENCE OF A HYDROCARBON DILUENT AT A TEMPERATURE IN THE RANGE OF 100 TO 350*F. AND AT A PRESSURE IN THE RANGE OF 50 TO 1500 P.S.I.G., THE IMPROVEMENT WHICH COMPRISES CONDUCTING SAID CONTRACTING IN THE PRESENCE OF AN ADJUVANT COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING STRUCTURAL FORMULAS:
Claim 2
Dependent Claim
83 words
IN A PROCESS FOR POLYMERIZING PROPYLENE IN WHICH SAID PROPYLENE IS CONTACTED WITH A CATALYST CONSISTING ESSENTIALLY OF A MIXTURE PREPARED BY ADMIXING TRIALKYLALUMINUM AND A TITANIUM HALIDE IN THE PRESENCE OF A HYDROCARBON DILUENT AT A TEMPERATURE IN THE RANGE OF 100 TO 350*F. AND AT A PRESSURE IN THE RANGE OF 50 TO 1500 P.S.I.G., THE IMPROVEMENT WHICH COMPRISES CONDUCTING SAID CONTRACTING IN THE PRESENCE OF AN ADJUVANT COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING STRUCTURAL FORMULAS:
References Cited (Backward Citations)
US2879263A
Cited
FR1171450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |