US2816097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation catalyst removal with montmorillonite clay
Assignee: Phillips Petroleum Co
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Filing: 1955-02-14
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Granted: 1957-12-10
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 George E Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:53
CPC Classifications
C; C08; C08C; C08C2/00; C08C2/02; C08C2/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE PROCESS OF SEPARATING HYDROGENATION CATALYST FROM A SOLUTION OF HYDROGENATED POLYMER SAID SOLUTION CONTAINING NOT MORE THAN 5 PERCENT POLYMER AND SAID POLYMER BEING PREPARED BY POLYMERIZING MONOMERIC MATERIAL COMPRISING AT LEAST 50 WEIGHT PERCENT CONJUGATED DIENE THE BALANCE BEING AN ARYL OLEFIN SAID PROCESS COMPRISING ADDING AT LEAST ONE PART BYU WEIGHT OF AN ACID ACTIVATED MONTMORILLONITE CLAY PER PART CATALYST TO SAID POLYMER SOLUTION AND SEPARATING SAID CLAY AND CATALYST FROM SAID POLYMER SOLUTION BY SEDIMENTATION AT A TEMPERATURE OF AT LEAST 85*F.
Claim 2
Dependent Claim
86 words
THE PROCESS OF SEPARATING HYDROGENATION CATALYST FROM A SOLUTION OF HYDROGENATED POLYMER SAID SOLUTION CONTAINING NOT MORE THAN 5 PERCENT POLYMER AND SAID POLYMER BEING PREPARED BY POLYMERIZING MONOMERIC MATERIAL COMPRISING AT LEAST 50 WEIGHT PERCENT CONJUGATED DIENE THE BALANCE BEING AN ARYL OLEFIN SAID PROCESS COMPRISING ADDING AT LEAST ONE PART BYU WEIGHT OF AN ACID ACTIVATED MONTMORILLONITE CLAY PER PART CATALYST TO SAID POLYMER SOLUTION AND SEPARATING SAID CLAY AND CATALYST FROM SAID POLYMER SOLUTION BY SEDIMENTATION AT A TEMPERATURE OF AT LEAST 85*F.
References Cited (Backward Citations)
US2493584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |