US2553677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic rsin from furfuryl alcohol with boron trifluoride catalyst
Assignee: Interchemical Corp
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Filing: 1948-03-25
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Granted: 1951-05-22
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Expires: 1968-03-25
Abstract
No abstract record available.
Inventors
- 👤 Charles S Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:21
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A RESIN COMPOSITION PREPARED BY HEAT CURING THE THERMOSETTING RESIN OBTAINED BY HEATING A 15 TO 75% SOLUTION OF FURFURYL ALCOHOL IN A VOLATILE WATER-IMMISCIBLE NON-REACTIVE SOLVENT OF THE CLASS CONSISTING OF VOLATILE KETONES, CARBOXYLIC ACID ESTERS, AND ETHERS, AND MIXTURES THEREOF, IN THE PRESENCE OF FROM 0.01 TO 1% OF BORON TRIFLUORIDE CATALYIST AND REMOVING 0.75 TO 0.88 MOLE OF WATER OF CONDENSATION PER MOLE OF FURFURYL ALCOHOL BY AZEOTROPIC DISTILLATION AT A TEMPERATURE OF 75* TO 175* C.
References Cited (Backward Citations)
US2095250A
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US2399055A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |