Patent US3004015A successfully refreshed from Google Patents.
US3004015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-component olefin polymerization catalyst containing an aluminum sesquihalide and a transition metal compound
Assignee: Eastman Kodak Co
•
Filing: 1960-08-29
•
Granted: 1961-10-10
•
Expires: 1980-08-29
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
2026-11-05 07:57
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A POLYMERIZATION OF A-OLEFINIC HYDROCARBON MATERIAL TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE OF AN ALUMINUM SESQUIHALIDE HAVING THE FORMULA AL2R''3X3 WHEREIN R'' IS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING FROM 1 TO 12 CARBON ATOMS, PHENYL AND BENZYL AND X IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, A COMPOUND OF A TRANSISTION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZICRONIUM, VANADIUM, CHROMIUM AND MOLYBDENUM, AND A STIBINE HAVING THE FORMULA R3SB WHEREIN 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
125 words
IN A POLYMERIZATION OF A-OLEFINIC HYDROCARBON MATERIAL TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE OF AN ALUMINUM SESQUIHALIDE HAVING THE FORMULA AL2R''3X3 WHEREIN R'' IS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING FROM 1 TO 12 CARBON ATOMS, PHENYL AND BENZYL AND X IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, A COMPOUND OF A TRANSISTION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZICRONIUM, VANADIUM, CHROMIUM AND MOLYBDENUM, AND A STIBINE HAVING THE FORMULA R3SB WHEREIN 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)
US2951066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |