US3157629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of tall oil fatty acids
Assignee: West Virginia Pulp and Paper Co
•
Filing: 1959-02-13
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Granted: 1964-11-17
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Expires: 1979-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul D Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:55
CPC Classifications
C; C11; C11B; C11B13/00; C11B13/005; C07; C07C; C07C51/00; C07C51/347; C07C51/36; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD OF TREATING A TALL OIL FATTY ACID PRODUCT CONTAINING LESS THAN 10% ROSIN ACIDS AND SUBSTANTIAL QUANTITIES OF BOTH LINOLEIC AND OLEIC ACIDS WHICH TAKEN TOGETHER CONSTITUTE A MAJOR PORTION OF THE TALL OIL PRODUCT, WHICH CONSISTS OF THE STEP OF HEATING SAID TALL OIL PRODUCT AT A TEMPERATURE BETWEEN 450 AND 550*F. IN THE PRESENCE OF IODINE IN AN AMOUNT EQUAL TO A BETWEEN 0.01 AND 2% OF THE WEIGHT OF THE TALL OIL FOR A PERIOD OF TIME BETWEEN 10 MINUTES AND 6 HOURS SUFFICIENT TO REDUCE THE IODINE VALUE OF THE TALL OIL TO BETWEEN 60 AND 110.
Claim 2
Independent Claim
103 words
THE METHOD OF TREATING A TALL OIL FATTY ACID PRODUCT CONTAINING LESS THAN 10% ROSIN ACIDS AND SUBSTANTIAL QUANTITIES OF BOTH LINOLEIC AND OLEIC ACIDS WHICH TAKEN TOGETHER CONSTITUTE A MAJOR PORTION OF THE TALL OIL PRODUCT, WHICH CONSISTS OF THE STEP OF HEATING SAID TALL OIL PRODUCT AT A TEMPERATURE BETWEEN 450 AND 550*F. IN THE PRESENCE OF IODINE IN AN AMOUNT EQUAL TO A BETWEEN 0.01 AND 2% OF THE WEIGHT OF THE TALL OIL FOR A PERIOD OF TIME BETWEEN 10 MINUTES AND 6 HOURS SUFFICIENT TO REDUCE THE IODINE VALUE OF THE TALL OIL TO BETWEEN 60 AND 110.
References Cited (Backward Citations)
US2311386A
Cited
US2794017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |