US3222332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the terpolymerization of monoolefins
Assignee: Shell USA Inc
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Filing: 1962-04-25
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Granted: 1965-12-07
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Expires: 1982-04-25
Abstract
No abstract record available.
Inventors
- 👤 Edward W Duck
- 👤 Berkenbosch Rinke
- 👤 Henricus G P Van Der Voort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:57
CPC Classifications
C; C08; C08F; C08F210/00; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN THE PROCESS FOR THE COPOLYMERIZATION OF ETHYLENE WITH A C3-4 ALPHA-OLEFIN AND A HIGHER ALPHA-OLEFIN HAVING AT LEAST 5 CARBON ATOMS PER MOLECULE WITH A CATALYST COMPRISING AS COMPONENT A A HALIDE OF THE GROUPS CONSISTING OF TITANIUM CHLORIDES, VANADIUM OXYCHLORIDES AND VANADIUM CHLORIDES AND AS COMPONENT B A COMPOUND OF THE GROUP CONSISTING OF ALUMINUM TRIALKYLS, ALUMINUM ALKYL HALIDES AND ALUMINUM ALKYL OXYALKYLS, THE IMPROVEMENT WHICH PROVIDES BETTER EFFICIENCY OF CATALYST COMPOENTS AND HIGHER COLD SOLUBILITY IN HEXANE OF THE RESULTING PRODUCT COMPRISING ADMIXING THE HIGHER OLEFIN WITH ONLY ONE CATALYST COMPONENT AND THEREAFTER WITH THE REMAINING CATALYST COMPONENT AND WITH ETHYLENE AND C3-4 ALPHA-OLEFIN.
Claim 2
Dependent Claim
107 words
IN THE PROCESS FOR THE COPOLYMERIZATION OF ETHYLENE WITH A C3-4 ALPHA-OLEFIN AND A HIGHER ALPHA-OLEFIN HAVING AT LEAST 5 CARBON ATOMS PER MOLECULE WITH A CATALYST COMPRISING AS COMPONENT A A HALIDE OF THE GROUPS CONSISTING OF TITANIUM CHLORIDES, VANADIUM OXYCHLORIDES AND VANADIUM CHLORIDES AND AS COMPONENT B A COMPOUND OF THE GROUP CONSISTING OF ALUMINUM TRIALKYLS, ALUMINUM ALKYL HALIDES AND ALUMINUM ALKYL OXYALKYLS, THE IMPROVEMENT WHICH PROVIDES BETTER EFFICIENCY OF CATALYST COMPOENTS AND HIGHER COLD SOLUBILITY IN HEXANE OF THE RESULTING PRODUCT COMPRISING ADMIXING THE HIGHER OLEFIN WITH ONLY ONE CATALYST COMPONENT AND THEREAFTER WITH THE REMAINING CATALYST COMPONENT AND WITH ETHYLENE AND C3-4 ALPHA-OLEFIN.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |