Patent US2824775A successfully refreshed from Google Patents.
US2500162A
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US
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Method of preparing viscous oils by the thermal condensation of short chain monoolkfins with long chain monoolefins
Assignee: ExxonMobil Oil Corp
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Filing: 1948-09-02
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Granted: 1950-03-14
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Expires: 1968-09-02
Abstract
No abstract record available.
Inventors
- 👤 Francis M Seger
- 👤 Alexander N Sachanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:55
CPC Classifications
C; C07; C07C; C07C2/00; Y; Y10; Y10S; Y10S208/00; Y10S208/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD FOR PREPARING A VISCOUS OIL, WHICH COMPRISES: THERMALLY AND NON-CATALYTICALLY CONDENSING, AT A TEMPERATURE BETWEEN ABOUT 500*F. AND ABOUT 750*F. FOR A PERIOD OF TIME FROM ABOUT TWENTY HOURS TO ABOUT ONE HOUR, RESPECTIVELY, AN OLEFIN MIXTURE CONSISTING ESSENTIALLY OF A SHORT CHAIN MONO-OLEFIN HAVING FROM TWO TO SIX CARBON ATOMS PER MOLECULE AND A LONG-CHAIN NORMAL, ALPHA MONO-OLEFIN HAVING FROM TEN TO THIRTY CARBON ATOMS PER MOLECULE; SAID SHORT CHAIN AND LONG CHAIN OLEFINS BEING REACTED IN SUCH MOLAR PROPORTIONS THAT THE MEANS VALUE OF THE OLEFIN CHAIN LENGTH IN THE OLEFIN MIXTURE IS FROM ABOUT SIX TO ABOUT TWELVE CARBON ATOMS.
Claim 2
Independent Claim
105 words
THE METHOD FOR PREPARING A VISCOUS OIL, WHICH COMPRISES: THERMALLY AND NON-CATALYTICALLY CONDENSING, AT A TEMPERATURE BETWEEN ABOUT 500*F. AND ABOUT 750*F. FOR A PERIOD OF TIME FROM ABOUT TWENTY HOURS TO ABOUT ONE HOUR, RESPECTIVELY, AN OLEFIN MIXTURE CONSISTING ESSENTIALLY OF A SHORT CHAIN MONO-OLEFIN HAVING FROM TWO TO SIX CARBON ATOMS PER MOLECULE AND A LONG-CHAIN NORMAL, ALPHA MONO-OLEFIN HAVING FROM TEN TO THIRTY CARBON ATOMS PER MOLECULE; SAID SHORT CHAIN AND LONG CHAIN OLEFINS BEING REACTED IN SUCH MOLAR PROPORTIONS THAT THE MEANS VALUE OF THE OLEFIN CHAIN LENGTH IN THE OLEFIN MIXTURE IS FROM ABOUT SIX TO ABOUT TWELVE CARBON ATOMS.
References Cited (Backward Citations)
US2315080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |