US2905659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing heavy metal catalyst from olefinic polymers by treatment with de-gassed water
Assignee: Goodrich Gulf Chemicals Inc
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Filing: 1956-08-07
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Granted: 1959-09-22
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Expires: 1976-08-07
Abstract
No abstract record available.
Inventors
- 👤 Floyd F Miller
- 👤 David S Conner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:17
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF TREATING A REACTION MIXTURE PREPARED BY POLYMERIZATION OF A L-OLEFINIC HYDROCARBON MONOMER IN THE PRESENCE OF AN ORGANOMETALLIC CATALYST CONTAINING HYDROCARBON RADICALS BOUND TO METAL ATOM THROUGH CARBON ATOMS AND IN WHICH AT LEAST ONE METAL ATOM IS A METAL OF THE 4 TO 10TH POSITION OF THE PERODIC ARRANGEMENT OF ELEMENTS IN SHORT AND LONG PEIODS, WHICH METHOD COMPRISING TREATING SAID REACTION MIXTURE, WHILE UNDER AN INERT ATMOSPHERE, WITH DE-GASSED WATER AND THEN SEPARATING SAID POLYMER FROM SAID WATER.
Claim 2
Independent Claim
83 words
THE METHOD OF TREATING A REACTION MIXTURE PREPARED BY POLYMERIZATION OF A L-OLEFINIC HYDROCARBON MONOMER IN THE PRESENCE OF AN ORGANOMETALLIC CATALYST CONTAINING HYDROCARBON RADICALS BOUND TO METAL ATOM THROUGH CARBON ATOMS AND IN WHICH AT LEAST ONE METAL ATOM IS A METAL OF THE 4 TO 10TH POSITION OF THE PERODIC ARRANGEMENT OF ELEMENTS IN SHORT AND LONG PEIODS, WHICH METHOD COMPRISING TREATING SAID REACTION MIXTURE, WHILE UNDER AN INERT ATMOSPHERE, WITH DE-GASSED WATER AND THEN SEPARATING SAID POLYMER FROM SAID WATER.
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |