US3196140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-component catalyst for olefin polymerization containing alkali metal-aluminum tetraalkyl transition metal halide and a stibine or arsine
Assignee: Eastman Kodak Co
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Filing: 1962-05-31
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Granted: 1965-07-20
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
- 👤 Jr Newton H Shearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:33
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN THE POLYMERIZATION OF A-OLFINIC HYDROCARBON MATERIAL TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONTAINING AN ALKALI METAL-ALUMINUM TETRAALKYL, THE ALKYL RADICALS CONTAINING FROM 1 TO 12 CARBON ATOMS, A HALIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, ZIRCONIUM, CHROMIUM AND MOLYBDENUM, THE HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AND A COMPOUUND OF A GROUP VA ELEMENT HAVING THE FORMULA ROZ WHEREIN Z IS A GROUP VA ELEMENT SELECTED FROM THE GROUP CONSISTING OF ARSENIC AND ANTIMONY AND EACH R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL.
Claim 2
Dependent Claim
129 words
IN THE POLYMERIZATION OF A-OLFINIC HYDROCARBON MATERIAL TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONTAINING AN ALKALI METAL-ALUMINUM TETRAALKYL, THE ALKYL RADICALS CONTAINING FROM 1 TO 12 CARBON ATOMS, A HALIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, ZIRCONIUM, CHROMIUM AND MOLYBDENUM, THE HALOGEN BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AND A COMPOUUND OF A GROUP VA ELEMENT HAVING THE FORMULA ROZ WHEREIN Z IS A GROUP VA ELEMENT SELECTED FROM THE GROUP CONSISTING OF ARSENIC AND ANTIMONY AND EACH R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |