US3027360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerisation process
Assignee: Distillers Co Yeast Ltd
•
Filing: 1957-04-15
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Granted: 1962-03-27
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Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 Raum Alaric Louis Jeffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:23
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
51 words
A PROCESS FOR THE POLYMERISATION OF AN A-OLEFIN WHICH COMPRISES CONTACTING THE A-OLEFIN WITH A CATALYST SYSTEM FORMED BY MIXING A REDUCING COMPONENT OF A "ZIEGLER" POLYMERISATION SYSTEM, WHICH IS A COMPOUND OF A NONTRANSITION METAL OCCURRING IN THE FIRST FOUR GROUPS OF THE PERIODIC TABLE, WITH PREFORMED, METASTABLE TITANIUM TRICHLORIDE.
Claim 2
Dependent Claim
51 words
A PROCESS FOR THE POLYMERISATION OF AN A-OLEFIN WHICH COMPRISES CONTACTING THE A-OLEFIN WITH A CATALYST SYSTEM FORMED BY MIXING A REDUCING COMPONENT OF A "ZIEGLER" POLYMERISATION SYSTEM, WHICH IS A COMPOUND OF A NONTRANSITION METAL OCCURRING IN THE FIRST FOUR GROUPS OF THE PERIODIC TABLE, WITH PREFORMED, METASTABLE TITANIUM TRICHLORIDE.
Claim 3
Dependent Claim
48 words
A CATALYST SYSTEM FOR A-OLEFIN POLYMERIZATION WHICH CONSISTS ESSENTIALLY OF THE PRODUCT FORMED BY MIXING (1) A REDUCING COMPONENT OF A "ZIEGLER" POLYMERIZATION TEM, WHICH IS A COMPOUND OF A NON-TRANSITION METAL OCCURRING IN THE FIRST FOUR GROUPS OF THE PERIODIC TABLE, WITH (2) PREFORMED, METASTABLE TITANIUM TRICHLORIDE.
Claim 4
Dependent Claim
48 words
A CATALYST SYSTEM FOR A-OLEFIN POLYMERIZATION WHICH CONSISTS ESSENTIALLY OF THE PRODUCT FORMED BY MIXING (1) A REDUCING COMPONENT OF A "ZIEGLER" POLYMERIZATION TEM, WHICH IS A COMPOUND OF A NON-TRANSITION METAL OCCURRING IN THE FIRST FOUR GROUPS OF THE PERIODIC TABLE, WITH (2) PREFORMED, METASTABLE TITANIUM TRICHLORIDE.
References Cited (Backward Citations)
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Cited
BE538782A
Cited
US2905645A
Cited
US2721189A
Cited
US2832759A
Cited
US2827447A
Cited
US2893984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |