摘要:
Automatic transmission fluids are described which contain a dialkyl thiadiazole and amine antioxidants, in an essentially phenolic-free and sulfurized fat-free base oil. The transmission fluids according to the present invention exhibit excellent compatibility and improved antiwear, oxidation resistance, and torque capacity properties. In a preferred embodiment a combination of friction modifiers yields enhanced results.
摘要:
Polyalkyl (meth) acrylate copolymers comprising from about 12 to about 18 weight percent methyl methacrylate; from about 75 to about 85 weight percent of a C 10 -C 15 alkyl (meth) acrylate; and from about 2 to about 5 weight percent of a nitrogen-containing dispersant monomer provide excellent low temperature properties to lubricating oils.
摘要:
A lubricant composition suitable for use as an automotive or industrial gear lubricant comprising:
(A) from about 40 to about 85 wt%, based on the total weight of the lubricant composition, of an oil of lubricating viscosity; (B) from about 0.01 to about 5 wt%, based on the total weight of the lubricant composition, of a product obtainable by reacting at least one C 5 -C 60 carboxylic acid and at least one amine selected from guanidine, aminoguanidine, urea, thiourea and salts thereof; and (C) from about 2 to about 25 wt%, based on the total weight of the lubricant composition, of a gear additive package.
摘要:
Organic molybdenum complexes comprising the reaction products of fatty oils, a mono-alkylated alkylene diamine, and a molybdenum source and their use as multifunctional additives for lubricating compositions.
摘要:
There is disclosed a lubricating oil composition which contains from about 50 to 1000, preferably 50 to 500 parts per million of molybdenum from a molybdenum compound which is oil-soluble and substantially free of reactive sulfur, about 1,000 to 20,000, preferably 1, 000 to 10,000 parts per million of a diarylamine and about 2,000 to 40,000 parts per million of a phenate. This combination of ingredients provides improved oxidation control and improved deposit control to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant.
(i) a compound containing at least one primary or secondary amine group and at least one hydroxyl group; (ii) a polyamine containing at least two amine groups, which is different from (i), wherein at least one of the amine groups is a primary or secondary amine; (iii) an alkyl-substituted hydroxyaromatic compound; and (iv) at least one aldehyde, is useful in a hydrocarbon fuel as a detergent and also to enhance the lubricity of the fuel.
摘要:
A non-dispersant poly (meth) acrylate copolymer comprising the reaction product(s) of
(A) from 5 to 15 weight percent of butyl methacrylate (A); (B) from 70 to 90 weight percent of a C10-C15 alkyl (meth) acrylate (B); and (C) from 5 to 10 weight percent of a C16-C30 alkyl (meth) acrylate (C).