Patent US2559985A successfully refreshed from Google Patents.
US2559985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for air-blowing clay tower polymer
Assignee: Phillips Petroleum Co
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Filing: 1945-12-10
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Granted: 1951-07-10
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Expires: 1965-12-10
Abstract
No abstract record available.
Inventors
- 👤 Lloyd C Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:00
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A METHOD FOR OBTAINING SOLID RESINOUS MATERIAL FROM HYDROCARBON POLYMERS FORMED IN THE REFINING OF CRACKING PETROLEUM DISTILLATES WITH SOLID CONTACT MATERIALS AT EVEVATED TEMPERATURES, SAID POLYMERS HAVING AN IODINE NUMBER OF 203 AND A SPECIFIC GRAVITY OF 0.959 AT 60* F., WHICH COMPRISES CONTACTING SAID HYDROCARBON POLYMERS WITH AIR FOR A PERIOD OF 3 TO 6 HOURS WHILE MAINTAINING A TEMPERATURE WITHIN THE RANGE OF 300* TO 480* F. AND A FLOW RATE OF AIR OF 14.5 TO 22 CUBIC FEET PER GALLON OF POLYMER PER HOUR TO OBTAIN A SOLID HYDROCARBON SOLUBLE RESIN HAVING AN ACID NUMBER WITHIN THE RANGE OS 0.4 TO 0.6 MILLIGRAM OF POTASSIUM HYDROXIDE PER GRAM OF POLYMER, AN IODINE NUMBER OF 214 TO 221, AND A SOFTENING POINT OF 150 TO 155* F.
Claim 2
Independent Claim
130 words
A METHOD FOR OBTAINING SOLID RESINOUS MATERIAL FROM HYDROCARBON POLYMERS FORMED IN THE REFINING OF CRACKING PETROLEUM DISTILLATES WITH SOLID CONTACT MATERIALS AT EVEVATED TEMPERATURES, SAID POLYMERS HAVING AN IODINE NUMBER OF 203 AND A SPECIFIC GRAVITY OF 0.959 AT 60* F., WHICH COMPRISES CONTACTING SAID HYDROCARBON POLYMERS WITH AIR FOR A PERIOD OF 3 TO 6 HOURS WHILE MAINTAINING A TEMPERATURE WITHIN THE RANGE OF 300* TO 480* F. AND A FLOW RATE OF AIR OF 14.5 TO 22 CUBIC FEET PER GALLON OF POLYMER PER HOUR TO OBTAIN A SOLID HYDROCARBON SOLUBLE RESIN HAVING AN ACID NUMBER WITHIN THE RANGE OS 0.4 TO 0.6 MILLIGRAM OF POTASSIUM HYDROXIDE PER GRAM OF POLYMER, AN IODINE NUMBER OF 214 TO 221, AND A SOFTENING POINT OF 150 TO 155* F.
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) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |