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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
•
Granted: 1957-05-28
•
Expires: 1973-05-14
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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)

US2346409A Cited
US2371230A Cited
US2311386A Cited
US2365300A Cited
US2503268A Cited
US2385912A Cited
US2495305A Cited
US2572035A Cited
US2585222A Cited
US2565484A Cited
US2617791A Cited
US2617792A Cited

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

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