US3296241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery and polymerization of hydrocarbon monomer
Assignee: Phillips Petroleum Co
•
Filing: 1962-08-20
•
Granted: 1967-01-03
•
Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 Donald E Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:53
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/956
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PROCESS FOR POLYMERIZING A CONJUGATED DIENE HYDROCARBON MONOMER CONTAINING FROM 4 TO 10 CARBON ATOMS PER MOLECULE COMPRISING INTRODUCING A STREAM COMPRISING SAID HYDROCARBON MONOMER AND OTHER HYDROCARBONS INTO AN EXTRACTIVE DISTILLATION ZONE, CONTACTING SAID STREAM IN SAID EXTRACTIVE DISTILLATION ZONE WITH A SELECTIVE, HYDROCARBON, POLYMERIZATION SOLVENT, WITHDRAWING FROM SAID EXTRACTIVE DISTILLATION ZONE A SOLVENT STREAM RICH IN SAID HYDROCARBON MONOMER, CONTACTING SAID SOLVENT STREAM RICH IN SAID HYDROCARBON MONOMER WITH A SUITABLE POLYMERIZATION CATALYST UNDER POLYMERIZATION REACTION CONDITIONS, AND RECOVERING THE RESULTING POLYMER FROM THE POLYMERIZATION REACTION EFFLUENT, SAID SELECTIVE, HYDROCARBON, POLYMERIZATION SOLVENT BEING SUBSTANTAILLY INERT WITH RESPECT TO SAID POLYMERIZATION CATALYST AND SAID HYDROCARBON MONOMER AND POSSESSING SELECTIVE ABSORPTION FOR SAID HYDROCARBON MONOMER IN COMPARISON TO SAID OTHER HYDROCARBONS.
Claim 2
Dependent Claim
122 words
A PROCESS FOR POLYMERIZING A CONJUGATED DIENE HYDROCARBON MONOMER CONTAINING FROM 4 TO 10 CARBON ATOMS PER MOLECULE COMPRISING INTRODUCING A STREAM COMPRISING SAID HYDROCARBON MONOMER AND OTHER HYDROCARBONS INTO AN EXTRACTIVE DISTILLATION ZONE, CONTACTING SAID STREAM IN SAID EXTRACTIVE DISTILLATION ZONE WITH A SELECTIVE, HYDROCARBON, POLYMERIZATION SOLVENT, WITHDRAWING FROM SAID EXTRACTIVE DISTILLATION ZONE A SOLVENT STREAM RICH IN SAID HYDROCARBON MONOMER, CONTACTING SAID SOLVENT STREAM RICH IN SAID HYDROCARBON MONOMER WITH A SUITABLE POLYMERIZATION CATALYST UNDER POLYMERIZATION REACTION CONDITIONS, AND RECOVERING THE RESULTING POLYMER FROM THE POLYMERIZATION REACTION EFFLUENT, SAID SELECTIVE, HYDROCARBON, POLYMERIZATION SOLVENT BEING SUBSTANTAILLY INERT WITH RESPECT TO SAID POLYMERIZATION CATALYST AND SAID HYDROCARBON MONOMER AND POSSESSING SELECTIVE ABSORPTION FOR SAID HYDROCARBON MONOMER IN COMPARISON TO SAID OTHER HYDROCARBONS.
References Cited (Backward Citations)
US2952671A
Cited
US2465363A
Cited
US2914588A
Cited
US3091518A
Cited
US2982795A
Cited
US2925452A
Cited
US3049413A
Cited
US3065218A
Cited
US2990437A
Cited
US3119800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |