摘要:
Certain diol-phosphorus oxyhalide-boron compound reaction products have been found to have antioxidant and antifriction properties and to hinder the corrosion of copper surfaces.
摘要:
Certain bis(hydrocarbyloxy methylated) boron-containing, heterocyclic compounds are disclosed which impart extreme pressure, anti-wear and friction reducing properties to lubricating oils. Such oils may be further provided with a hydrocarbon polysulfide derivative of 2,5-dimercapto-1,3,4-thiodiazole as a copper corrosion inhibitor, or terephthalic acid as a lead corrosion inhibitor, or either a bis(dithiobenzil)metal derivative or a sulfur bridged, bis hindered phenol as an oxidation inhibitor, or mixtures thereof.
摘要:
A lubricating oil composition containing esters constituted with glycerol, fatty acid and boric acid, which esters having carboxylic acid residue, glycerol residue and boric acid residue at a specific proportion.The proportion for the carboxylic acid residue and glycerol residue ranges 0-2.0 mols and 1.5-2.0 mols respectively per unit mol of a boric acid residue, and the glycerol residue is 1.2 mols or more based on 1 mol of the carboxylic acid residue.Lubricating oil additives according to the invention have almost no corrosion property in bearing portions, and do not form any solid film on themselves when allowed to stand in the air.
摘要:
High alkalinity sulfurized alkylphenates of alkaline earth metals useful as lubricating oil additives and methods of making them are disclosed. A sulfurized alkylphenol is neutralized with an alkaline-earth base in the presence of an oil, a glycol, and halide ions, the glycol being present in the form of a mixture with an alcohol having a boiling point above 150.degree. C. Alcohol, glycol, water, and sediment are removed from the resultant medium and the medium is then carbonated. After carbonation, alcohol, glycol, water, and sediment are removed.
摘要:
New compounds made by first reacting an amine, an aldehyde and a mercaptan and reacting the product thus obtained with a boron compound are provided. The invention also provides lubricant and liquid fuel compositions containing such compounds.
摘要:
There are disclosed novel multifunctional additives for power transmission shift fluids such as automatic transmission fluids which are diethanolamides or diisopropanolamides of alkyl thioglycolic acids or boron, phosphorous or metal reaction products thereof. These additives provide the properties of anti-oxidation, H.sub.2 S suppression, corrosion inhibition and friction modification.
摘要:
The cloud point of a hydrodewaxed base stock is reduced by direct sulfurization of the base stock, or by direct sulfurization of the base stock in the presence of a magnesium, calcium or barium compound.
摘要:
New reaction products obtained by reacting (1) a hindered phenol, (2) a boron compound and (3) an amine together are described. Preferred reaction sequences are:(a) (2)+(1), then this product with (3); and(b) (2)+(3), then this product with (1).Also described are lubricant compositions containing the reaction products and a method of reducing fuel consumption in an internal combustion engine by lubricating the engine with a lubricant containing the reaction product.
摘要:
Disclosed are beta-amino acid derivatives which impart friction reducing properties to lubricating compositions. The additives of the invention are bifunctional carboxylic acid salts and amides derived from the basic hydrolysis of a cyanoethylated amine.