US2918459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for production of olefin polymers
Assignee: Phillips Petroleum Co
•
Filing: 1955-06-13
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Granted: 1959-12-22
•
Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 Nowlin Gene
- 👤 Harold D Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:41
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A METHOD FOR POLYMERIZING AN ALIPHATIC 1-OLEFIN HAVING UP TO AND INCLUDING 8 CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID OLEFIN WITH A CATALYST COMPRISING AN IRIDIUM HALIDE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF A TRIALKYLALUMINUM, AN ALKYL ALUMINUM HALIDE, AND A MIXTURE OF AN ALKYL HALIDE AND A METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, LITHIUM, RUBIDIUM, CESIUM, BERYLLIUM, MAGNESIUM, ZINC, CADMIUM, MERCURY, ALUMINUM, GALLIUM, INDIUM, AND THALLIUM, THE RATIO OF THE AMOUNT OF THE COMPONENTS IN SAID CATALYST BEING IN THE RANGE OF FROM 0.05 TO 50 MOLS OF SAID TRIALKYLALUMINUM AND SAID ALKYLALUMINUM HALIDE PER MOL OF SAID IRIDIUM HALIDE, FROM 0.02 TO 50 MOLS OF SAID ALKYL HALIDE AND FROM 0.02 TO 50 MOLS OF SAID METAL PER MOL OF SAID IRIDIUM HALIDE.
Claim 2
Independent Claim
133 words
A METHOD FOR POLYMERIZING AN ALIPHATIC 1-OLEFIN HAVING UP TO AND INCLUDING 8 CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID OLEFIN WITH A CATALYST COMPRISING AN IRIDIUM HALIDE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF A TRIALKYLALUMINUM, AN ALKYL ALUMINUM HALIDE, AND A MIXTURE OF AN ALKYL HALIDE AND A METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM, LITHIUM, RUBIDIUM, CESIUM, BERYLLIUM, MAGNESIUM, ZINC, CADMIUM, MERCURY, ALUMINUM, GALLIUM, INDIUM, AND THALLIUM, THE RATIO OF THE AMOUNT OF THE COMPONENTS IN SAID CATALYST BEING IN THE RANGE OF FROM 0.05 TO 50 MOLS OF SAID TRIALKYLALUMINUM AND SAID ALKYLALUMINUM HALIDE PER MOL OF SAID IRIDIUM HALIDE, FROM 0.02 TO 50 MOLS OF SAID ALKYL HALIDE AND FROM 0.02 TO 50 MOLS OF SAID METAL PER MOL OF SAID IRIDIUM HALIDE.
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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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |