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US2859167A Expired / Lapsed US ⏱️ 0.0 years remaining

Production of blown asphalts in the presence of a phosphorous containing catalyst

Assignee: Standard Oil Co
•
Filing: 1954-02-08
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Granted: 1958-11-04
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Expires: 1974-02-08
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Abstract

No abstract record available.

Inventors

  • 👤 Joseph W Van Wyk

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 10:23
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 141 words
THE METHOD OF CATALYST OXIDIZING SUITABLE HIGH MOLECULAR WEIGHT HYDROCARBONS TO PRODUCE BLOWN ASPHALTS, WHICH METHOD COMPRISES CONTACTING SAID HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS WITH SUBSTANTIAL QUANTITIES OF AIR AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 400* TO ABOUT 500*F. FOR A PERIOD OF AT LEAST ABOUT ONE-HALF HOUR,SUBSEQUENTLY INTRODUCING A FLUID HOMOGENEOUS SLURRY OF A PHOSPHORUS-CONTAINING CATALYST SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE, STABLE PHOSPHORUS SULFIDES AND RED PHOSPHORUS IN A HYDROCARBON SLURRY OIL TO SAID HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS WHILE AT SUCH A TEMPERATURE, THE AMOUNT OF SAID PHOSPHORUS-CONTAINING CATALYST BEING FROM ABOUT 0.1 TO ABOUT 5.0% BASED UPON THE TOTAL WEIGHT OF HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS AND HYDROCARBON SLURRY OIL PRESENT, AND CONTINUING THE INTRODUCTION OF AIR TO THE RESULTING ADMIXTURE OF CATALYST, HYDROCARBON SLURRY OIL AND HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS.
Claim 2
Independent Claim 141 words
THE METHOD OF CATALYST OXIDIZING SUITABLE HIGH MOLECULAR WEIGHT HYDROCARBONS TO PRODUCE BLOWN ASPHALTS, WHICH METHOD COMPRISES CONTACTING SAID HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS WITH SUBSTANTIAL QUANTITIES OF AIR AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 400* TO ABOUT 500*F. FOR A PERIOD OF AT LEAST ABOUT ONE-HALF HOUR,SUBSEQUENTLY INTRODUCING A FLUID HOMOGENEOUS SLURRY OF A PHOSPHORUS-CONTAINING CATALYST SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE, STABLE PHOSPHORUS SULFIDES AND RED PHOSPHORUS IN A HYDROCARBON SLURRY OIL TO SAID HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS WHILE AT SUCH A TEMPERATURE, THE AMOUNT OF SAID PHOSPHORUS-CONTAINING CATALYST BEING FROM ABOUT 0.1 TO ABOUT 5.0% BASED UPON THE TOTAL WEIGHT OF HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS AND HYDROCARBON SLURRY OIL PRESENT, AND CONTINUING THE INTRODUCTION OF AIR TO THE RESULTING ADMIXTURE OF CATALYST, HYDROCARBON SLURRY OIL AND HIGH MOLECULAR WEIGHT PETROLEUM HYDROCARBONS.

References Cited (Backward Citations)

US2076799A Cited
US2179208A Cited
US2121437A Cited
US2179988A Cited
US2415697A Cited
US2455709A Cited
US2450756A Cited
US2676910A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-11-03 1962-05-05 1962-11-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-11-03 1966-05-05 1966-11-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-11-03 1970-05-05 1970-11-04 $7700.00 Window Closed / Lapsed

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