US2794017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of processing tall oil and products produced thereby
Assignee: Heyden Newport Chemical Corp
•
Filing: 1953-05-14
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Granted: 1957-05-28
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Expires: 1973-05-14
Abstract
No abstract record available.
Inventors
- 👤 Robert C Palmer
- 👤 Jr Malcolm E Hannah
- 👤 Jr Alfred F Wicke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:33
CPC Classifications
C; C09; C09F; C09F5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN THE METHOD OF PRODUCING A RAPID DRYING COMPOSITION FROM A TALL OIL CONTAINING ROSIN ACIDS AND LINOLEIC ACID IN ITS NON-CONJUGATED FORM, THE STEPS OF HEATING THE TALL OIL IN THE PRESENCE OF AN ISOMERIZATION CATALYST SELECTED FROM THE GROUP CONSISTING OF SULFUR, SULFUR DIOXIDE, AND IODINE TO CONVERT THE LINOLEIC ACID INTO A MORE READILY POLYMERIZABLE FORM, STEAMING THE RESULTING MASS TO REMOVE OBJECTIONABLE MATERIAL DERIVED FROM THE CATALYST, HEATING THE THEN RESULTING MASS TO POLYMERIZE THE POLYMERIZABLE LINOLEIC ACID AND FRACTIONALLY DISTILLING TO RECOVER A RELATIVELY NON-VOLATILE LINOLEIC ACID-RESIN ACIDS MIXTURE.
Claim 2
Dependent Claim
94 words
IN THE METHOD OF PRODUCING A RAPID DRYING COMPOSITION FROM A TALL OIL CONTAINING ROSIN ACIDS AND LINOLEIC ACID IN ITS NON-CONJUGATED FORM, THE STEPS OF HEATING THE TALL OIL IN THE PRESENCE OF AN ISOMERIZATION CATALYST SELECTED FROM THE GROUP CONSISTING OF SULFUR, SULFUR DIOXIDE, AND IODINE TO CONVERT THE LINOLEIC ACID INTO A MORE READILY POLYMERIZABLE FORM, STEAMING THE RESULTING MASS TO REMOVE OBJECTIONABLE MATERIAL DERIVED FROM THE CATALYST, HEATING THE THEN RESULTING MASS TO POLYMERIZE THE POLYMERIZABLE LINOLEIC ACID AND FRACTIONALLY DISTILLING TO RECOVER A RELATIVELY NON-VOLATILE LINOLEIC ACID-RESIN ACIDS MIXTURE.
References Cited (Backward Citations)
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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) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |