Patent US3786470A successfully refreshed from Google Patents.
US3100784A
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Method of producing polymers of linolenic acid
Assignee: Emery Oleochemicals LLC
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Filing: 1962-06-25
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Granted: 1963-08-13
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 Charles G Goebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:07
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08F; C08F20/00; C08F20/62; C08F20/64; C09; C09F; C09F7/00; C09F7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR POLYMERIZING FATTY ACID MIXTURES CONTAINING AT LEAST 25% LINOLENIC ACID, WHICH COMPRISES FIRST SUBJECTING SAID MIXTURE TO A THERMAL POLYMERIZATION TREATMENT AT TEMPERATURES OF FROM ABOUT 260 TO 340*C AT STEAM PRESSURES ABOVE 40 P.S.I. UNTIL SUBSTANTIAL POLYMERIZATION IS OBTAINED, AND THEN SUBJECTING THE INTERMEDIATE REACTION PRODUCT SO PRODUCED TO A CATALYTIC POLYMERIZATION TREATMENT CONDUCTED IN THE CONTINUING PRESENCE OF WATER AND A CRYSTALLINE CLAY MINERAL AT TEMPERATURES OF FROM SAID 180 TO 260*C. FOR AT LEAST 1/2 HOUR.
Claim 2
Dependent Claim
82 words
A PROCESS FOR POLYMERIZING FATTY ACID MIXTURES CONTAINING AT LEAST 25% LINOLENIC ACID, WHICH COMPRISES FIRST SUBJECTING SAID MIXTURE TO A THERMAL POLYMERIZATION TREATMENT AT TEMPERATURES OF FROM ABOUT 260 TO 340*C AT STEAM PRESSURES ABOVE 40 P.S.I. UNTIL SUBSTANTIAL POLYMERIZATION IS OBTAINED, AND THEN SUBJECTING THE INTERMEDIATE REACTION PRODUCT SO PRODUCED TO A CATALYTIC POLYMERIZATION TREATMENT CONDUCTED IN THE CONTINUING PRESENCE OF WATER AND A CRYSTALLINE CLAY MINERAL AT TEMPERATURES OF FROM SAID 180 TO 260*C. FOR AT LEAST 1/2 HOUR.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |