Patent US3219647A successfully refreshed from Google Patents.
US3219647A
Expired / Lapsed
US
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Removal of catalyst residues from polymers
Assignee: Phillips Petroleum Co
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Filing: 1962-04-26
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Granted: 1965-11-23
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Expires: 1982-04-26
Abstract
No abstract record available.
Inventors
- 👤 Richard E Dietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:51
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/02; C08C; C08C2/00; C08C2/02; C08C2/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE METHOD OF REMOVING IMPURITIES FROM A POLYMER PREPARED BY CATALYTIC POLYMERIZATIONIN THE PRESENCE OF A CATALYST HAVING AT LEAST TWO ESSENTAIAL COMPONENTS, ONE OF SAID COMPONENTS BEING A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF GROUP IV, GROUPV, GROUP VI, AND GROUP VIII METAL COMPOUNDS, AND ANOTHER JOF SAID COMPONENTS BEING SELECTED FROM THE GROUP CONSISTING OF ORGANOMETAL COMPOUNDS, METAL HYDRIDES, AND METALS OF GROUPS I, II AND III, AND AT LEAST ONE OF SAID COMPONENTS CONTAINING AT LEAST ONE HALOGEN ATOM ATTACHED TO A METAL ATOM, WHICH COMPRISES CONTACTING SAID POLYMER DISPERSED IN A HYDROCARBON DILUENT, WHILE THE LATTER IS UNDER CONDITIONS SUCH THAT SAID DILUENT REMAINS IN LIQUID PHASE, WITH A TREATING AGENT COMPRISING FROM 1 TO 5 GRAM MOLS PER GRAM ATOM OF TOTAL METAL IN THE CATALYST OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE FOLLOWING STRUCTURAL FORMULAS:
Claim 2
Independent Claim
149 words
THE METHOD OF REMOVING IMPURITIES FROM A POLYMER PREPARED BY CATALYTIC POLYMERIZATIONIN THE PRESENCE OF A CATALYST HAVING AT LEAST TWO ESSENTAIAL COMPONENTS, ONE OF SAID COMPONENTS BEING A METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF GROUP IV, GROUPV, GROUP VI, AND GROUP VIII METAL COMPOUNDS, AND ANOTHER JOF SAID COMPONENTS BEING SELECTED FROM THE GROUP CONSISTING OF ORGANOMETAL COMPOUNDS, METAL HYDRIDES, AND METALS OF GROUPS I, II AND III, AND AT LEAST ONE OF SAID COMPONENTS CONTAINING AT LEAST ONE HALOGEN ATOM ATTACHED TO A METAL ATOM, WHICH COMPRISES CONTACTING SAID POLYMER DISPERSED IN A HYDROCARBON DILUENT, WHILE THE LATTER IS UNDER CONDITIONS SUCH THAT SAID DILUENT REMAINS IN LIQUID PHASE, WITH A TREATING AGENT COMPRISING FROM 1 TO 5 GRAM MOLS PER GRAM ATOM OF TOTAL METAL IN THE CATALYST OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE FOLLOWING STRUCTURAL FORMULAS:
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |