US3208954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing titanium trichloride for use as a catalyst in olefin polymerization consisting of grinding titanium trichloride with an aluminum halide
Assignee: Bergwerksgesellschaft Hibernia AG
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Filing: 1960-02-16
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Granted: 1965-09-28
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Expires: 1980-02-16
Abstract
No abstract record available.
Inventors
- 👤 Rindtorff Ermbrecht
- 👤 Keller Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:02
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/02; C08F10/00; F; F02; F02B; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S526/00; Y10S526/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
METHOD OF PREPARING TICL3 FOR USE IN COMBINATION WITH A COCATALYST SELECTED FROM THE GROUP CONSISTING OF ALUMINUM ALKYLS AND ALUMINUM ALKYL HALIDES IN THE LOW PRESSURE POLYERMIZATION OF OLEFINS WHICH CONSISTS ESSENTIALLY IN PRODUCING TICL3 WITH AN ALUMINUM HALIDE.
Claim 2
Dependent Claim
40 words
METHOD OF PREPARING TICL3 FOR USE IN COMBINATION WITH A COCATALYST SELECTED FROM THE GROUP CONSISTING OF ALUMINUM ALKYLS AND ALUMINUM ALKYL HALIDES IN THE LOW PRESSURE POLYERMIZATION OF OLEFINS WHICH CONSISTS ESSENTIALLY IN PRODUCING TICL3 WITH AN ALUMINUM HALIDE.
References Cited (Backward Citations)
US2899418A
Cited
GB794785A
Cited
GB807204A
Cited
US3014016A
Cited
FR1173537A
Cited
FR1176194A
Cited
US3010787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |