US2930788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of solid polymer
Assignee: Phillips Petroleum Co
•
Filing: 1957-01-22
•
Granted: 1960-03-29
•
Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Robert L Banks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:38
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
A PROCESS WHICH COMPRISES CONTACTING ETHYLENE AT
Claim 2
Dependent Claim
7 words
A PROCESS WHICH COMPRISES CONTACTING ETHYLENE AT
Claim 3
Independent Claim
208 words
A METHOD FOR POLYMERIZING AN ALIPHATIC 1-OLEFIN HAVING UP TO AND INCLUDING 8 CARBON ATOMS PER MOLECULE A TEMPERATURE IN THE RANGE 100 TO 450*F. WITH CATALYST ACTIVE FOR ETHYLENE POLYMERIZATION AND CONSISTING ESSENWHICH COMPRISES CONTACTING SAID OLEFIN WITH A CATALYST COMPRISING (1) A DERIVATIVE OF A METAL OF GROUP IV-A TIALLY OF A MINOR PROPORTION OF IRON OXIDE ASSOCIATED WITH A MAJOR PROPORTION OF A SILICA-ALUMINA COMPOSITE TO OF THE PERIODIC TABLE CORRESPONDING TO THE FORMULA M(OR)M, WHEREIN M IS A METAL SELECTED FROM THE GROUP FORM A NORMALLY SOLID POLYMER OF ETHYLENE. CONSISTING OF TITANIUM AND ZIRCONIUM, WHEREIN H IS AN ALKYL RADICAL CONTAINING UP TO AND INCLUDING 20 CARBON ATOMS, AND WHEREIN M IS AN INTEGER EQUAL TO THE VALENCE OF THE METAL M, (2) A HALIDE SELECTED FROM THE GROUP CONSISTING OF HALIDES OF SILICON AND ANTIMONY, AND (3) AN ELEMENTAL METAL HAVING A HIGHER OXIDATION POTENTIAL THAN SAID SELECTED METAL M AND SELECTED FROM THE GROUP CONSISTING OF LITHIUM, CESIUM, RUBIDIUM, POTASSIUM, BARIUM, STRONTIUM, CALCIUM, SODIUM, LANTHANUM, MAGNESIUM THORIUM, BARYLLIUM, HAFNIUM, ALUMINUM, ZIRCONIUM, AND MANGANESE, SAID CATALYST CONTAINING FROM 0.02 TO 50 MOLS OF SAID HALIDE PER MOL OF SAID GROUP IV-A METAL DERIVATIVE AND FROM 0.02 TO 50 MOLS OF SAID ELEMENTAL
Claim 4
Independent Claim
208 words
A METHOD FOR POLYMERIZING AN ALIPHATIC 1-OLEFIN HAVING UP TO AND INCLUDING 8 CARBON ATOMS PER MOLECULE A TEMPERATURE IN THE RANGE 100 TO 450*F. WITH CATALYST ACTIVE FOR ETHYLENE POLYMERIZATION AND CONSISTING ESSENWHICH COMPRISES CONTACTING SAID OLEFIN WITH A CATALYST COMPRISING (1) A DERIVATIVE OF A METAL OF GROUP IV-A TIALLY OF A MINOR PROPORTION OF IRON OXIDE ASSOCIATED WITH A MAJOR PROPORTION OF A SILICA-ALUMINA COMPOSITE TO OF THE PERIODIC TABLE CORRESPONDING TO THE FORMULA M(OR)M, WHEREIN M IS A METAL SELECTED FROM THE GROUP FORM A NORMALLY SOLID POLYMER OF ETHYLENE. CONSISTING OF TITANIUM AND ZIRCONIUM, WHEREIN H IS AN ALKYL RADICAL CONTAINING UP TO AND INCLUDING 20 CARBON ATOMS, AND WHEREIN M IS AN INTEGER EQUAL TO THE VALENCE OF THE METAL M, (2) A HALIDE SELECTED FROM THE GROUP CONSISTING OF HALIDES OF SILICON AND ANTIMONY, AND (3) AN ELEMENTAL METAL HAVING A HIGHER OXIDATION POTENTIAL THAN SAID SELECTED METAL M AND SELECTED FROM THE GROUP CONSISTING OF LITHIUM, CESIUM, RUBIDIUM, POTASSIUM, BARIUM, STRONTIUM, CALCIUM, SODIUM, LANTHANUM, MAGNESIUM THORIUM, BARYLLIUM, HAFNIUM, ALUMINUM, ZIRCONIUM, AND MANGANESE, SAID CATALYST CONTAINING FROM 0.02 TO 50 MOLS OF SAID HALIDE PER MOL OF SAID GROUP IV-A METAL DERIVATIVE AND FROM 0.02 TO 50 MOLS OF SAID ELEMENTAL
References Cited (Backward Citations)
US2212155A
Cited
US2581228A
Cited
US2606940A
Cited
US2589189A
Cited
US2666756A
Cited
US2726231A
Cited
US2825721A
Cited
US2791575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |