Abstract:
Transition metal complexes of thiobis(alkylphenols) provide an increase in the research octane number of fuels suitable for use in internal combustion engines.
Abstract:
Nitrogen oxygenates and particulate emissions in combustion engines are effectively suppressed when a minor effective amount of a transition metal energy transfer additive, e.g., iron, cobalt and copper complexed with a thiobisphenol are added to the engine's fuel.
Abstract:
A method for the preparation of complexes of transition metal 2,2'-thiobis(alkylphenolates) with hydroxy-organic ligands which comprises the direct reaction of the thiobis(alkylphenol), with an alkali metal carbonate and a transition metal salt in a hydroxyorganic reactant-solvent. The initial hydroxyorganic ligand can be partially or totally replaced without isolation. The complexes are employed as stabilizers for lubricants, plastics and fuels.
Abstract:
Sulfurized phenols, e.g., phenol sulfides, disulfides or polysulfides, oligomers thereof or mixtures of same when treated with alkyl vinyl ethers provide excellent metal anti-corrosivity characteristics without significant reduction of antioxidant, antiwear or other desired properties when incorporated into organic media such as lubricants.
Abstract:
Compositions having highly effective antioxidant characteristics are provided comprising organic media, normally susceptible to oxidation, such as oils of lubricating viscosity, containing a minor amount sufficient to impart antioxidant properties thereto of the reaction product of a polysulfide and a hydrocarbylmagnesium halide or a Grignard reagent.
Abstract:
Mixed transition metal-alkali metal derivatives of thiobis (alkylphenols) and thiobis (alkylphenol-phenolates) are novel compounds which have utility as oxidation stabilizers for various organic media, e.g., lubricant compositions.
Abstract:
Nickel thiobis(alkylphenolates), e.g., nickel 2,2'-thiobis-(4-t-octylphenolate), complexed with hydroxy materials such as alcohols and phenols are novel compounds which impart antioxidant properties to various organic media such as lubricants, hydrocarbon fuels and plastics when incorporated therein. Synergistic or improved antioxidant compositions are provided when the hydroxy complexes are admixed with known antioxidants such as aryl amines and/or hindered phenols.
Abstract:
This specification discloses a lubricant composition containing esters of arylaminophenoxyalkyl carboxylic acids as an antioxidant and new compositions of matter useful as antioxidants.
Abstract:
Lubricant compositions are provided containing a stabilizing amount against oxidative degradation of an organo sulfur-containing nickel complex.
Abstract:
Lubricants are stabilized against oxidative degradation by adding thereto a stabilizing amount of an ester of an anthranilic acid. An example of a suitable material is n-octyl N-naphthylanthranilate (n-octyl N-phenyl-1-naphthyl-2'-carboxylate).