Patent US2698319A successfully refreshed from Google Patents.
US2698319A
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Furfuryl alcohol polymer and continuous process for making the same
Assignee: Quaker Oats Co
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Filing: 1953-07-21
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Granted: 1954-12-28
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Expires: 1973-07-21
Abstract
No abstract record available.
Inventors
- 👤 Lloyd H Brown
- 👤 Jr Preston A Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:50
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A CONTINUOUS PROCESS OF PRODUCING A POLYMER OF FURFURYL ALCOHOL WHICH COMPRISES PASSING A MIXTURE OF FURFURYL ALCOHOL AND ABOUT ONE-TENTH OF THE WEIGHT THEREOF OF A DILUTE SOLUTION OF PHOSPHORIC ACID THROUGH A POLYMERIZATION ZONE AT A TEMPERATURE OF FROM ABOUT 110* F. TO ABOUT 125* C. AT SUCH A RATE THAT THE MIXTUIRE WILL REMAIN AT SAID TEMPERATURE TO ABOUT 15 MINUTES; NEUTRALIZING THE EFFLUENT FROM SAID ZONE TO ABOUT A HYDROGEN-ION CONCENTRATION OF PH 5.0 TO PH 6, AND DISTILLING WATER AND FURFURYL ALCOHOL THEREFROM, LEAVING THE POLYMER AS A LIQUID RESIDUE, AND RETURNING THE FURFURYL ALCOHOL TO THE POLYMERIZATION ZONE.
Claim 2
Dependent Claim
104 words
A CONTINUOUS PROCESS OF PRODUCING A POLYMER OF FURFURYL ALCOHOL WHICH COMPRISES PASSING A MIXTURE OF FURFURYL ALCOHOL AND ABOUT ONE-TENTH OF THE WEIGHT THEREOF OF A DILUTE SOLUTION OF PHOSPHORIC ACID THROUGH A POLYMERIZATION ZONE AT A TEMPERATURE OF FROM ABOUT 110* F. TO ABOUT 125* C. AT SUCH A RATE THAT THE MIXTUIRE WILL REMAIN AT SAID TEMPERATURE TO ABOUT 15 MINUTES; NEUTRALIZING THE EFFLUENT FROM SAID ZONE TO ABOUT A HYDROGEN-ION CONCENTRATION OF PH 5.0 TO PH 6, AND DISTILLING WATER AND FURFURYL ALCOHOL THEREFROM, LEAVING THE POLYMER AS A LIQUID RESIDUE, AND RETURNING THE FURFURYL ALCOHOL TO THE POLYMERIZATION ZONE.
References Cited (Backward Citations)
US2420330A
Cited
US2570027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |