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Oils stable against oxidation

  • US 2,718,501 A
  • Filed: 03/01/1952
  • Issued: 09/20/1955
  • Est. Priority Date: 03/01/1952
  • Status: Expired due to Term
First Claim
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1. AN OIL COMPOSITION HAVING IMPROVED STABILITY TOWARD OXIDATION, SAID COMPOSITION COMPRISING A MAJOR PROPORTION OF A NORMALLY OXIDIZABLE OIL TOGETHER WITH A TOTAL OF FROM ABOUT 0.1 TO 2 PER CENT BY WEIGHT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON MERCAPTANS, ALIPHATIC HYDROCARBON SULFIDES AND ALIPHATIC HYDROCARBON POLYSULFIDES, SAID COMPOUNDS EACH HAVING A MOLECULAR WEIGHT OF AT LEAST 150, AND A TOTAL OF FROM 0.03 TO 0.5 PER CENT BY WEIGHT OF AT LEAST ONE AROMATIC AMINE SELECTED FROM THE GROUP CONSISTING OF PHENYL-A-NAPTHYLAMINE, A-NAPHTHYLAMINE, DIPHENYLAMINE, P-HYDROXY DIPHENYLAMINE, CARBAZOLE, DI-BNAPHTHYL-P-PHENYL DIAMINE AND PHENOTHIAZINE.

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