Patent US3213073A successfully refreshed from Google Patents.
US3213073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-component alkyl aluminum halide catalysts for olefin polymerization
Assignee: Eastman Kodak Co
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Filing: 1960-12-23
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Granted: 1965-10-19
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
- 👤 Frederick B Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:35
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN THE POLYMERIZATION OF AN OLEFINIC HYDROCARBON MATERIAL CONTAINING AT LEAST THREE CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATLYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONSISTING ESSENTIALLY OF AN ALUMINUM DIHALIDE HAVING THE FORMULA R1ALX2 WHEREIN R1 IS A HYDROCARBON RADICAL CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL, AND THE HALOGEN ATOMS BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, A COMPOUND OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, ZIRCONIUM, CHROMIUM AND MOLYBDENUM, SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF HALIDES, ALKOXYHALIDES AND ACETYLACETONATES, AND A THIRD COMPONENT SELECTED FROM THE AMIDES HAVING THE FORMULAS:
Claim 2
Dependent Claim
120 words
IN THE POLYMERIZATION OF AN OLEFINIC HYDROCARBON MATERIAL CONTAINING AT LEAST THREE CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATLYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONSISTING ESSENTIALLY OF AN ALUMINUM DIHALIDE HAVING THE FORMULA R1ALX2 WHEREIN R1 IS A HYDROCARBON RADICAL CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL, AND THE HALOGEN ATOMS BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, A COMPOUND OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, ZIRCONIUM, CHROMIUM AND MOLYBDENUM, SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF HALIDES, ALKOXYHALIDES AND ACETYLACETONATES, AND A THIRD COMPONENT SELECTED FROM THE AMIDES HAVING THE FORMULAS:
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |