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

• Current Assignee: Oliver L. Harle
• Original Assignee: Oliver L. Harle
• Inventors: Harle, Oliver L.
• Application Number:
  US03/274,519
• Time in Patent Office: 1,298 Days
• US Class Current: 508/563
• CPC Class Codes: C10M 135/20 Thiols; Sulfides; Polysulfides
• CPC Class Codes: C10M 135/22 containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
• CPC Class Codes: C10M 2203/06 Well-defined aromatic compounds
• CPC Class Codes: C10M 2203/10 Petroleum or coal fractions, e.g. tars, solvents, bitumen
• CPC Class Codes: C10M 2205/022 Ethene
• CPC Class Codes: C10M 2205/024 Propene
• CPC Class Codes: C10M 2205/026 Butene
• CPC Class Codes: C10M 2205/028 containing aliphatic monomers having more than four carbon atoms
• CPC Class Codes: C10M 2205/14 Synthetic waxes, e.g. polythene waxes
• CPC Class Codes: C10M 2205/173 used as base material
• CPC Class Codes: C10M 2207/282 of (cyclo)aliphatic oolycarboxylic acids
• CPC Class Codes: C10M 2207/34 Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
• CPC Class Codes: C10M 2207/40 Fatty vegetable or animal oils
• CPC Class Codes: C10M 2207/404 obtained from genetically modified species
• CPC Class Codes: C10M 2209/103 Polyethers, i.e. containing di- or higher polyoxyalkylene groups
• CPC Class Codes: C10M 2209/105 of alkylene oxides containing three carbon atoms only
• CPC Class Codes: C10M 2209/108 etherified
• CPC Class Codes: C10M 2209/109 esterified
• CPC Class Codes: C10M 2215/06 having amino groups bound to carbon atoms of six-membered aromatic rings
• CPC Class Codes: C10M 2215/062 containing hydroxy groups bound to the aromatic ring
• CPC Class Codes: C10M 2215/064 : Di- and triaryl amines
• CPC Class Codes: C10M 2215/065 : Phenyl-Naphthyl amines
• CPC Class Codes: C10M 2215/22 : Heterocyclic nitrogen compounds
• CPC Class Codes: C10M 2215/221 : Six-membered rings containing nitrogen and carbon only
• CPC Class Codes: C10M 2215/225 : the rings containing both nitrogen and oxygen
• CPC Class Codes: C10M 2215/226 : Morpholines
• CPC Class Codes: C10M 2215/30 : Heterocyclic compounds
• CPC Class Codes: C10M 2219/00 : Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
• CPC Class Codes: C10M 2219/062 : having carbon-to-sulfur double bonds
• CPC Class Codes: C10M 2219/066 : Thiocarbamic type compounds
• CPC Class Codes: C10M 2219/068 : Thiocarbamate metal salts
• CPC Class Codes: C10M 2219/082 : containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
• CPC Class Codes: C10M 2219/084 : containing hydroxy groups; Derivatives thereof
• CPC Class Codes: C10M 2219/085 : containing carboxyl groups; Derivatives thereof
• CPC Class Codes: C10M 2219/10 : Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
• CPC Class Codes: C10M 2219/108 : Phenothiazine
• CPC Class Codes: C10M 2227/02 : Esters of silicic acids
• CPC Class Codes: C10M 2229/041 : containing aliphatic substituents
• CPC Class Codes: C10M 2229/045 : containing silicon-to-hydroxyl bonds
• CPC Class Codes: C10M 2229/046 : containing silicon-oxygen-carbon bonds
• CPC Class Codes: C10M 2229/047 : containing alkylene oxide groups
• CPC Class Codes: C10M 2229/048 : containing carboxyl groups
• CPC Class Codes: C10M 2229/05 : containing atoms other than silicon, hydrogen, oxygen or carbon
• CPC Class Codes: C10N 2010/04 : Groups 2 or 12
• CPC Class Codes: C11B 5/0092 : Mixtures

Claims

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.