US3205208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-component organometallic-transition metal halide catalysts and olefin polymerization
Assignee: Eastman Kodak Co
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Filing: 1960-10-26
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Granted: 1965-09-07
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Expires: 1980-10-26
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 19:08
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN THE POLYMERIZATION OF A-OLEFINS CONTAINING 2 TO 10 CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONSISTING ESSENTIALLY OF AN ORGANOMETALLIC COMPOUND HAVING THE FORMULA RM'', R2M2 AND RM2X WHEREIN M'' IS AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM POTASSIUM AND LITHIUM, M2 IS A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ZINC, R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING 1 TO 8 CARBON ATOMS, PHENYL AND BENZYL AND X IS A HALOGEN ATOM SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, A HALIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, ZICRONIUM, CHROMIUM AND MOLYBDENUM, THE HALIDE BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AND A THIRD COMPONENT SELECTED FROM THE AMIDES HAVING THE FORMULAS:
Claim 2
Dependent Claim
148 words
IN THE POLYMERIZATION OF A-OLEFINS CONTAINING 2 TO 10 CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONSISTING ESSENTIALLY OF AN ORGANOMETALLIC COMPOUND HAVING THE FORMULA RM'', R2M2 AND RM2X WHEREIN M'' IS AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM POTASSIUM AND LITHIUM, M2 IS A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ZINC, R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING 1 TO 8 CARBON ATOMS, PHENYL AND BENZYL AND X IS A HALOGEN ATOM SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, A HALIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, ZICRONIUM, CHROMIUM AND MOLYBDENUM, THE HALIDE BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AND A THIRD COMPONENT SELECTED FROM THE AMIDES HAVING THE FORMULAS:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |