US3147239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of solid olefin polymers utilizing a catalyst system containing elemental ulfur
Assignee: Phillips Petroleum Co
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Filing: 1960-08-22
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Granted: 1964-09-01
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Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 Peter J Canterino
- 👤 Lon T Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:24
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
308 words
IN A PROCESS FOR THE PREPARATION OF SOLID OLEFIN POLYMERS HAVING A HIGH ISOTACTIC CONTENT FROM AN OLEFIN CORRESPONDING TO THE FORMULA R-CH=CH2, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYL RADICAL CONTAINING FROM 1 TO 4, INCLUSIVE, CARBON ATOMS, A PHENYL RADICAL, AND AN ALKYL-SUBSTITUTED PHENYL RADICAL, THE TOTAL NUMBER OF CARBON ATOMS IN SAID SUBSTITUTED ALKYL GROUPS BEING IN THE RANGE OF 1 TO 6, INCLUSIVE, CARBON ATOMS, IN THE PRESENCE OF AN INITIATOR WHICH FORMS ON MIXING AT LEAST TWO ESSENTIAL COMPONENTS, ONE OF SAID COMPONENTS BEING A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRI- AND TETRA-CHLORIDES, TRI- AND TETRA-BROMIDES, AND TRI- AND TETRA-IODIDES OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, NIOBIUM AND TANTALUM, AND ANOTHER OF SAID COMPONENTS BEING SELECTED FROM THE GROUP CONSISTING OF (1) ORGANOMETAL COMPOUNDS OF METALS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, GALLIUM, INDIUM, BERYLLIUM, SODIUM, POTASSIUM, LITHIUM, RUBIDIUM, CESIUM, MAGNESIUM, CADMIUM, MERCURY, ZINC, AND BARIUM IN WHICH AT LEAST ONE OF THE VALENCES OF THE METAL IS SATISFIED WITH A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL AND ARYL RADICALS HAVING INDIVIDUALLY UP TO 15 CARBON ATOMS AND COLLECTIVELY UP TO 40 CARBON ATOMS PER MOLECULE AND IN WHICH ANY REMAINING VALENCES OF THE METAL ARE SATISFIED WITH ATOMS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HALOGEN, (2) HYDRIDES OF METALS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, BARIUM, GALLIUM, INDIUM AND BERYLLIUM, (3) COMPLEXES OF SUCH HYDRIDES WITH ALKALI METALS SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, AND POTASSIUM, AND (4) A METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, MAGNESIUM AND ALUMINUM, THE IMPROVEMENT COMPRISING CARRYING OUT THE POLYMERIZATION IN THE PRESENCE OF 0.1 TO 2.5 GRAM ATOMS OF ELEMENTAL SULFUR PER MOLE OF SAID ONE COMPONENT CONTAINED IN SAID INITIATOR.
Claim 2
Dependent Claim
308 words
IN A PROCESS FOR THE PREPARATION OF SOLID OLEFIN POLYMERS HAVING A HIGH ISOTACTIC CONTENT FROM AN OLEFIN CORRESPONDING TO THE FORMULA R-CH=CH2, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYL RADICAL CONTAINING FROM 1 TO 4, INCLUSIVE, CARBON ATOMS, A PHENYL RADICAL, AND AN ALKYL-SUBSTITUTED PHENYL RADICAL, THE TOTAL NUMBER OF CARBON ATOMS IN SAID SUBSTITUTED ALKYL GROUPS BEING IN THE RANGE OF 1 TO 6, INCLUSIVE, CARBON ATOMS, IN THE PRESENCE OF AN INITIATOR WHICH FORMS ON MIXING AT LEAST TWO ESSENTIAL COMPONENTS, ONE OF SAID COMPONENTS BEING A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRI- AND TETRA-CHLORIDES, TRI- AND TETRA-BROMIDES, AND TRI- AND TETRA-IODIDES OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, NIOBIUM AND TANTALUM, AND ANOTHER OF SAID COMPONENTS BEING SELECTED FROM THE GROUP CONSISTING OF (1) ORGANOMETAL COMPOUNDS OF METALS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, GALLIUM, INDIUM, BERYLLIUM, SODIUM, POTASSIUM, LITHIUM, RUBIDIUM, CESIUM, MAGNESIUM, CADMIUM, MERCURY, ZINC, AND BARIUM IN WHICH AT LEAST ONE OF THE VALENCES OF THE METAL IS SATISFIED WITH A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL AND ARYL RADICALS HAVING INDIVIDUALLY UP TO 15 CARBON ATOMS AND COLLECTIVELY UP TO 40 CARBON ATOMS PER MOLECULE AND IN WHICH ANY REMAINING VALENCES OF THE METAL ARE SATISFIED WITH ATOMS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HALOGEN, (2) HYDRIDES OF METALS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, BARIUM, GALLIUM, INDIUM AND BERYLLIUM, (3) COMPLEXES OF SUCH HYDRIDES WITH ALKALI METALS SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, AND POTASSIUM, AND (4) A METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, MAGNESIUM AND ALUMINUM, THE IMPROVEMENT COMPRISING CARRYING OUT THE POLYMERIZATION IN THE PRESENCE OF 0.1 TO 2.5 GRAM ATOMS OF ELEMENTAL SULFUR PER MOLE OF SAID ONE COMPONENT CONTAINED IN SAID INITIATOR.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |