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US2842455A Expired / Lapsed US ⏱️ 0.0 years remaining

Composition of paraffin wax and a hydrogenated polymer oil

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-02-01
•
Granted: 1958-07-08
•
Expires: 1975-02-01
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Abstract

No abstract record available.

Inventors

  • 👤 David W Young
  • 👤 Delmer L Cottle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 19:57
CPC Classifications
C; C08; C08L; C08L91/00; C08L91/06; C08F; C08F36/00; C08F36/02; C08F36/04; C08L91/08; C10; C10M; C10M2205/00; C10M2205/06; C10M2209/00; C10M2209/02; C10M2209/10; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/02; C10M2225/04; C10M2225/041; C10N; C10N2010/00; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2070/00; C10N2070/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 170 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF PARAFFIN WAX AND 1 TO 20% OF A HYDROGENATED LIQUID POLYMER OIL HAVING AN IODINE NUMBER BELOW 150 AND PREPARED BY MIXING 50 TO 100 PARTS BY WEIGHT OF BUTADIENE-1.3 WITH 50 TO 0 PARTS BY WEIGHT OF STYRENE, 50 TO 500 PARTS BY WEIGHT OF AN INERT HYDROCARBON DILUENT BOILING BETWEEN ABOUT 0 TO 250*C., 1 TO 100 PARTS OF AN ETHER SELECTED FROM THE GROUP CONSISTING OF C4-C8 ALIPHATIC ETHERS AND CYCLIC ETHERS HAVING THE OXYGEN ATOMS SEPARATED BY 2 CARBON ATOMS 1.2 TO 8 PARTS OF FINELY DISPERSED SODIUM AND 10 TO 50% BY WEIGHT OF A C3-C5 ALCOHOL BASED ON THE WEIGHT OF SODIUM, HEATING THE MIXTURE TO A REACTION TEMPERATURE BETWEEN 25 TO 105*C. UNTIL SUBSTANTIALLY 100% CONVERSION IS OBTAINED, DESTROYING AND REMOVING THE CATALYST AND SUBSEQUENTLY CONTACTING THE RESULTING POLYMER WITH HYDROGEN UNDER THE PRESSURE OF ABOUT 100 TO 5000 P.S.I.G. AT A TEMPERATURE BETWEEN ABOUT 200 AND 500* F. IN THE PRESENCE OF A HYDROGENATION CATALYST.
Claim 2
Dependent Claim 170 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF PARAFFIN WAX AND 1 TO 20% OF A HYDROGENATED LIQUID POLYMER OIL HAVING AN IODINE NUMBER BELOW 150 AND PREPARED BY MIXING 50 TO 100 PARTS BY WEIGHT OF BUTADIENE-1.3 WITH 50 TO 0 PARTS BY WEIGHT OF STYRENE, 50 TO 500 PARTS BY WEIGHT OF AN INERT HYDROCARBON DILUENT BOILING BETWEEN ABOUT 0 TO 250*C., 1 TO 100 PARTS OF AN ETHER SELECTED FROM THE GROUP CONSISTING OF C4-C8 ALIPHATIC ETHERS AND CYCLIC ETHERS HAVING THE OXYGEN ATOMS SEPARATED BY 2 CARBON ATOMS 1.2 TO 8 PARTS OF FINELY DISPERSED SODIUM AND 10 TO 50% BY WEIGHT OF A C3-C5 ALCOHOL BASED ON THE WEIGHT OF SODIUM, HEATING THE MIXTURE TO A REACTION TEMPERATURE BETWEEN 25 TO 105*C. UNTIL SUBSTANTIALLY 100% CONVERSION IS OBTAINED, DESTROYING AND REMOVING THE CATALYST AND SUBSEQUENTLY CONTACTING THE RESULTING POLYMER WITH HYDROGEN UNDER THE PRESSURE OF ABOUT 100 TO 5000 P.S.I.G. AT A TEMPERATURE BETWEEN ABOUT 200 AND 500* F. IN THE PRESENCE OF A HYDROGENATION CATALYST.

References Cited (Backward Citations)

US2709662A Cited
US2640809A Cited
US2638460A Cited
US2687963A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-07-07 1962-01-06 1962-07-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-07-07 1966-01-06 1966-07-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-07-07 1970-01-06 1970-07-08 $7700.00 Window Closed / Lapsed

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