Patent US3210333A successfully refreshed from Google Patents.
US3210333A
Expired / Lapsed
US
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Fluidizing polymer solution
Assignee: Phillips Petroleum Co
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Filing: 1961-01-03
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Granted: 1965-10-05
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 Charles W Strobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:25
CPC Classifications
C; C08; C08F; C08F8/00; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF FLUIDIZING A SOLUTION OF POLYMER OBTAINED BY CONTACTING AN ORGANO POLYLITHIUM INITIATOR CONTAINING 2 TO 4 LITHIUM ATOMS PER MOLECULE WITH A CONJUGATED DIENE HAVING FROM 4 TO 12 CARBON ATOMS PER MOLECULE IN A HYDROCARBON SOLVENT IN THE SUBSTANTIAL ABSENCE OF POLAR SOLVENT WHICH COMPRISES CONTACTING SAID SOLUTION AT THE END OF THE POLYMERIZATION WITH FROM 0.05 TO 15 VOLUME PERCENT BASED ON THE TOTAL SOLUTION OF A MATERIAL HAVING FROM 2 TO 24 CARBON ATOMS PER MOLECULE AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ETHERS, CYCLIC ETHERS AND TRIALKYLAMINES.
Claim 2
Independent Claim
95 words
A METHOD OF FLUIDIZING A SOLUTION OF POLYMER OBTAINED BY CONTACTING AN ORGANO POLYLITHIUM INITIATOR CONTAINING 2 TO 4 LITHIUM ATOMS PER MOLECULE WITH A CONJUGATED DIENE HAVING FROM 4 TO 12 CARBON ATOMS PER MOLECULE IN A HYDROCARBON SOLVENT IN THE SUBSTANTIAL ABSENCE OF POLAR SOLVENT WHICH COMPRISES CONTACTING SAID SOLUTION AT THE END OF THE POLYMERIZATION WITH FROM 0.05 TO 15 VOLUME PERCENT BASED ON THE TOTAL SOLUTION OF A MATERIAL HAVING FROM 2 TO 24 CARBON ATOMS PER MOLECULE AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ETHERS, CYCLIC ETHERS AND TRIALKYLAMINES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |