Patent US1439930A successfully refreshed from Google Patents.
Patent US3032509A successfully refreshed from Google Patents.
US3032509A
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Partially-reduced cocrystallized transition metal halide polymerization catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-02-03
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Granted: 1962-05-01
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur W Langer
- 👤 Tornqvist Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:19
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/02; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD FOR PRODUCING AN IMPROVED TRANSITION METAL HALIDE CATALYST COMPONENT USEFUL WHEN ACTIVATED WITH AN ORGANOMETALLIC COMPOUND FOR THE LOW PRESSURE POLYMERIZATION OF ALPHA OLEFIN COMPRISING HEATING A MIXTURE OF VAPORS OF TITANIUM TETRACHLORIDE, HYDROGEN VAPORS AND FROM 0.05-1.0 MOL OF ALUMINUM TRICHLORIDE/MOL TITANIUM CHLORIDE AT A TEMPERATURE IN THE RANGE OF 500* TO 1,000* C. TO EFFECT PARTIAL REDUCTION OF SAID TRANSITION METAL HALIDE AND ISOLATING A FINELY DIVIDED CATALYST COMPONENT CONSISTING ESSENTIALLY OF PARTIALLY REDUCED TRANSITION METAL HALIDE COCRYSTALLIZED WITH THE SECOND METAL HALIDE.
Claim 2
Independent Claim
87 words
A METHOD FOR PRODUCING AN IMPROVED TRANSITION METAL HALIDE CATALYST COMPONENT USEFUL WHEN ACTIVATED WITH AN ORGANOMETALLIC COMPOUND FOR THE LOW PRESSURE POLYMERIZATION OF ALPHA OLEFIN COMPRISING HEATING A MIXTURE OF VAPORS OF TITANIUM TETRACHLORIDE, HYDROGEN VAPORS AND FROM 0.05-1.0 MOL OF ALUMINUM TRICHLORIDE/MOL TITANIUM CHLORIDE AT A TEMPERATURE IN THE RANGE OF 500* TO 1,000* C. TO EFFECT PARTIAL REDUCTION OF SAID TRANSITION METAL HALIDE AND ISOLATING A FINELY DIVIDED CATALYST COMPONENT CONSISTING ESSENTIALLY OF PARTIALLY REDUCED TRANSITION METAL HALIDE COCRYSTALLIZED WITH THE SECOND METAL HALIDE.
References Cited (Backward Citations)
CA511807A
Cited
DE874215C
Cited
US2770541A
Cited
FR1132506A
Cited
GB785314A
Cited
US2822357A
Cited
US2893984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |