Patent US2776949A successfully refreshed from Google Patents.
US2776949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified amide-aldehyde resins from amides of oxidized paraffin acids
Assignee: Union Oil Company of California
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Filing: 1953-07-27
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Granted: 1957-01-08
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Expires: 1973-07-27
Abstract
No abstract record available.
Inventors
- 👤 John P Buckmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:23
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/42; C08G12/421; C08G12/04; C08G12/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A RESIN COMPOSITION PREPARED BY REACTING A FLUID AMIDE, AN ALDEHYDE SUBSTANCE AND AN ALCOHOL AT A TEMPERATURE BETWEEN ABOUT 50*C. AND ABOUT 150*C., SAID ALCOHOL BEING IN ACYLINE MONOHYDROXY ALCOHOL HAVING 2 TO 8 CARBON ATOMS PER MOLECULE AND SAID FLUID AMIDE BEING A MIXTURE OF AMIDES PREPARED BY OXIDIZING PARAFFIN WAX WITH A GAS CONTAINING FREE OXYGEN AT A TEMPERATURE BETWEEN 100*C. AND 140*C. TO PRODUCE AN OXIDIZED WAX HAVING AN ACID NUMBER BETWEEN ABOUT 200 AND ABOUT 350 MG. KOH/G., SEPARATING FROM THE OXIDIZED WAX A FRACTION INSOLUBLE IN WATER AND IN PETROLEUM NAPHTHA, WHICH FRACTION HAS A SAPONIFACTION NUMBER-ACID NUMBER RATIO BETWEEN 1.4 AND 2.2 TO 1 AND A TOTAL OXYGENCARBOXYL RATIO BETWEEN 1.2 AND 1.8 TO 1, AND AMIDATING SAID FRACTION.
Claim 2
Dependent Claim
126 words
A RESIN COMPOSITION PREPARED BY REACTING A FLUID AMIDE, AN ALDEHYDE SUBSTANCE AND AN ALCOHOL AT A TEMPERATURE BETWEEN ABOUT 50*C. AND ABOUT 150*C., SAID ALCOHOL BEING IN ACYLINE MONOHYDROXY ALCOHOL HAVING 2 TO 8 CARBON ATOMS PER MOLECULE AND SAID FLUID AMIDE BEING A MIXTURE OF AMIDES PREPARED BY OXIDIZING PARAFFIN WAX WITH A GAS CONTAINING FREE OXYGEN AT A TEMPERATURE BETWEEN 100*C. AND 140*C. TO PRODUCE AN OXIDIZED WAX HAVING AN ACID NUMBER BETWEEN ABOUT 200 AND ABOUT 350 MG. KOH/G., SEPARATING FROM THE OXIDIZED WAX A FRACTION INSOLUBLE IN WATER AND IN PETROLEUM NAPHTHA, WHICH FRACTION HAS A SAPONIFACTION NUMBER-ACID NUMBER RATIO BETWEEN 1.4 AND 2.2 TO 1 AND A TOTAL OXYGENCARBOXYL RATIO BETWEEN 1.2 AND 1.8 TO 1, AND AMIDATING SAID FRACTION.
References Cited (Backward Citations)
US2096181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |