US3210332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of solid olefin polymers
Assignee: Phillips Petroleum Co
•
Filing: 1963-05-03
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Granted: 1965-10-05
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Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Harold D Lyons
- 👤 Charles W Moberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:43
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A PROCESS FOR POLYMERIZING PROPYLENE IN WHICH SAID PROPYLENE IS CONTACTED WITH A CATALYST PREPARED BY ADMIXING ALKYL ALUMINUM AND TITANIUM TRICHLORIDE 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 CONTACTING IN THE PRESENCE OF FROM 0.01 TO 4.0 MOLS PER MOL OF TITANIUM TRICHLORIDE OF AN ADJUVANT COMPOUND SELECTED FROM THE GROUP CONSISTING OF KETONES AND POLYKETONES, SAID COMPOUND CONTAINING FROM 1 TO 14, INCLUSIVE, GROUPS OF THE FORMULA
Claim 2
Dependent Claim
98 words
IN A PROCESS FOR POLYMERIZING PROPYLENE IN WHICH SAID PROPYLENE IS CONTACTED WITH A CATALYST PREPARED BY ADMIXING ALKYL ALUMINUM AND TITANIUM TRICHLORIDE 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 CONTACTING IN THE PRESENCE OF FROM 0.01 TO 4.0 MOLS PER MOL OF TITANIUM TRICHLORIDE OF AN ADJUVANT COMPOUND SELECTED FROM THE GROUP CONSISTING OF KETONES AND POLYKETONES, SAID COMPOUND CONTAINING FROM 1 TO 14, INCLUSIVE, GROUPS OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |