Patent US2712561A successfully refreshed from Google Patents.
US2712561A
Expired / Lapsed
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Method of destroying catalyst residues
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-12-04
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Granted: 1955-07-05
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Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 Anthony H Gleason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:36
CPC Classifications
C; C08; C08C; C08C2/00; C08C2/02; C08C2/04; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN A PROCESS FOR THE PREPARATION OF DRYING OILS WHEREIN 75 TO 100 PARTS OF BUTADIENE ARE COPOLYMERIZED WITH 25 TO 0 PARTS OF STYRENE AT A TEMPERATURE OF 20-100* C. IN THE PRESENCE OF 1.5 TO 10 PARTS OF FINELY DIVIDED METALLIC SODIUM AND 50 TO 500 PARTS OF AN INERT HYDROCARBON DILUENT BOILING BETWEEN 20* AND 200* C., AND WHEREIN RESIDUAL SODIUM IS REMOVED UPON COMPLETION OF THE REACTION, THE IMPROVEMENT WHICH COMPRISES TREATING THE REACTION PRODUCT WITH AN AMOUNT OF AQUEOUS SULFURIC ACID CONTAINING 82.5% TO 96% H2SO4 TO CONVERT THE SODIUM SUBSTANTIALLY QUANTITATIVELY TO SODIUM BISULFATE.
Claim 2
Dependent Claim
100 words
IN A PROCESS FOR THE PREPARATION OF DRYING OILS WHEREIN 75 TO 100 PARTS OF BUTADIENE ARE COPOLYMERIZED WITH 25 TO 0 PARTS OF STYRENE AT A TEMPERATURE OF 20-100* C. IN THE PRESENCE OF 1.5 TO 10 PARTS OF FINELY DIVIDED METALLIC SODIUM AND 50 TO 500 PARTS OF AN INERT HYDROCARBON DILUENT BOILING BETWEEN 20* AND 200* C., AND WHEREIN RESIDUAL SODIUM IS REMOVED UPON COMPLETION OF THE REACTION, THE IMPROVEMENT WHICH COMPRISES TREATING THE REACTION PRODUCT WITH AN AMOUNT OF AQUEOUS SULFURIC ACID CONTAINING 82.5% TO 96% H2SO4 TO CONVERT THE SODIUM SUBSTANTIALLY QUANTITATIVELY TO SODIUM BISULFATE.
References Cited (Backward Citations)
US2543440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |