US2600403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partially hydrogenated furfuraldehyde-ketone reaction products thickened under acidic conditions
Assignee: Harvel Research Corp
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Filing: 1950-02-16
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Granted: 1952-06-17
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Expires: 1970-02-16
Abstract
No abstract record available.
Inventors
- 👤 Mortimer T Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:05
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A NOVEL COMPOSITION OF MATTER CAPABLE OF BEING HEAT CONVERTED TO THE SUBSTANTIALLY SOLID AND INFUSIBLE STATE COMPRISING A MIXTURE OF AN ACIDIC AGENT AND A PARTIALLY HYDROGENATED PRODUCT SELECTED FROM THE GROUP CONSISTING OF (A) PARTIALLY HYDROGENATED MONO-FURFURYL KETONE, (B) PARTIALLY HYDROGENATED DI-FURFURYL KETONE, (C) PARTIALLY HYDROGENATED ORGANIC REACTION MASSES, SAID REACTION MASSES BEFORE HYDROGENATION HAVING A VISCOSITY OF AT LEAST 50 CP. AT 25* C. AND PRODUCED BY REACTING UNDER ALKALINE CONDITIONS FURFURALDEHYDE AND A KETONE HAVING TWO HYDROGEN ATOMS ON AN ALPHA CARBON, (D) RESINOUS RESIDUES OBTAINED BY THE HEAT DISTILLATION OF SAID PARTIALLY HYDROGENATED REACTION MASSES, THE PH OF SAID MIXTURE BEING IN THE RANGE OF .3 TO 4, SAID PARTIALLY HYDROGENATED PRODUCTS HAVING SATURATED WITH HYDROGEN TO THE EXTENT OF APPROXIMATELY 15%-65% THE NORMALLY PRESENT CARBON TO CARBON DOUBLE BONDS IN SAID PRODUCTS BEFORE HYDROGENATION.
Claim 2
Dependent Claim
140 words
A NOVEL COMPOSITION OF MATTER CAPABLE OF BEING HEAT CONVERTED TO THE SUBSTANTIALLY SOLID AND INFUSIBLE STATE COMPRISING A MIXTURE OF AN ACIDIC AGENT AND A PARTIALLY HYDROGENATED PRODUCT SELECTED FROM THE GROUP CONSISTING OF (A) PARTIALLY HYDROGENATED MONO-FURFURYL KETONE, (B) PARTIALLY HYDROGENATED DI-FURFURYL KETONE, (C) PARTIALLY HYDROGENATED ORGANIC REACTION MASSES, SAID REACTION MASSES BEFORE HYDROGENATION HAVING A VISCOSITY OF AT LEAST 50 CP. AT 25* C. AND PRODUCED BY REACTING UNDER ALKALINE CONDITIONS FURFURALDEHYDE AND A KETONE HAVING TWO HYDROGEN ATOMS ON AN ALPHA CARBON, (D) RESINOUS RESIDUES OBTAINED BY THE HEAT DISTILLATION OF SAID PARTIALLY HYDROGENATED REACTION MASSES, THE PH OF SAID MIXTURE BEING IN THE RANGE OF .3 TO 4, SAID PARTIALLY HYDROGENATED PRODUCTS HAVING SATURATED WITH HYDROGEN TO THE EXTENT OF APPROXIMATELY 15%-65% THE NORMALLY PRESENT CARBON TO CARBON DOUBLE BONDS IN SAID PRODUCTS BEFORE HYDROGENATION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |