Patent US3303175A successfully refreshed from Google Patents.
US3303175A
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Process for the copolymerization of alpha-olefins in the presence of a coordination catalyst and an organic sulfur compound
Assignee: Avisun Corp
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Filing: 1963-01-21
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Granted: 1967-02-07
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Achon Marco Antonio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:24
CPC Classifications
C; C08; C08F; C08F210/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PROCESS FOR THE COPOLYMERIZATION OF OLEFINS WHICH COMPRISES CONTACTING A MIXTURE OF ETHYLENE AND AT LEAST ONE OTHER HYDROCARBON CONTAINING OLEFINIC UNSATURATION SELECTED FROM THE GROUP CONSISTING OF PROPYLENE, BUTENE-1, AND UNCONJUATED DIOLEFINS, IN AN INERT SOLVENT, WITH A CATALYST CONSISTING ESSENTIALLY OF THE PRODUCT OBTAINED BY MIXING AN ALUMINUM ALKYL DIHALIDE, A VANADIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF VANADIUM OXYTRICHLORIDE AND VANADIUM OXYTRIBROMIDE, AND AN ORGANIC SULFUR COMPOUND CONTAINING AT LEAST ONE PHENYL RADICAL SELECTED FROM THE GROUP CONSISTING OF SULFONES, SULFIDES, DISULFIDES, SULFOXIDES, AND SULFONAMIDES, WHEREIN THE MOL RATIO OF THE ALUMINUM COMPOUND TO THE VANADIUM COMPOUND IS FROM 1:1 TO 10:1, AND THE MOL RATIO OF THE ALUMINUM COMPOUNDS TO THE SULFUR COMPOUND IS FROM 12:1 TO 2:1.
Claim 2
Dependent Claim
124 words
A PROCESS FOR THE COPOLYMERIZATION OF OLEFINS WHICH COMPRISES CONTACTING A MIXTURE OF ETHYLENE AND AT LEAST ONE OTHER HYDROCARBON CONTAINING OLEFINIC UNSATURATION SELECTED FROM THE GROUP CONSISTING OF PROPYLENE, BUTENE-1, AND UNCONJUATED DIOLEFINS, IN AN INERT SOLVENT, WITH A CATALYST CONSISTING ESSENTIALLY OF THE PRODUCT OBTAINED BY MIXING AN ALUMINUM ALKYL DIHALIDE, A VANADIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF VANADIUM OXYTRICHLORIDE AND VANADIUM OXYTRIBROMIDE, AND AN ORGANIC SULFUR COMPOUND CONTAINING AT LEAST ONE PHENYL RADICAL SELECTED FROM THE GROUP CONSISTING OF SULFONES, SULFIDES, DISULFIDES, SULFOXIDES, AND SULFONAMIDES, WHEREIN THE MOL RATIO OF THE ALUMINUM COMPOUND TO THE VANADIUM COMPOUND IS FROM 1:1 TO 10:1, AND THE MOL RATIO OF THE ALUMINUM COMPOUNDS TO THE SULFUR COMPOUND IS FROM 12:1 TO 2:1.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |