摘要:
A novel product formed by the reaction of dialkyl or diaryl phosphorodithioic acid and a sulfurized olefin possesses good copper corrosivity, good antiwear and antioxidant activity. Organic compositions containing a minor amount thereof also possess good lubricating characteristics.
摘要:
Lubricant or fuel compositions comprising 1) an organo, ring-substituted diphenyl sulfide, e.g. a monoalkyldiphenyl sulfide; 2) a dispersant component comprising at least one polymer-substituted succinimide, succinamide and/or succinic acid ester in which the alcohol or phenol moiety of the ester group may optionally contain amide, imide or amine nitrogen functionality, or mixtures of said amide, imide and/or ester; and 3) a dithiophosphate, e.g., a zinc dithiophosphate. The compositions have superior antiwear and extreme pressure properties.
摘要:
Oxygenated alkyl amines synthesized using carbonyl coupling reactions have combustion chamber deposit reducing properties and oxidative stability characteristics beneficial for dispersant/detergent applications in fuels and lubricants.
摘要:
Reaction products of organotin oxides, or halides such as dibutyltin oxide and tributyltin chloride and diorgano dithiophosphoric acids such as di-(2-ethylhexyl)dithiophosphoric acid are effective multifunctional antioxidant and antiwear additives in lubricants, greases and fuels.
摘要:
Reaction products of hydrocarbylcarboxylic anhydrides and aminoalkanols can provide effective antiwear, antirust, and corrosion-inhibiting properties in lubricant and fuel applications.
摘要:
Lubricant and liquid fuel compositions contain a novel and unobvious friction reducing or antioxidant additive. The additive is a borated hydroxy/hydrocarbyl sulfide containing 2 hydroxy groups.
摘要:
Reaction products of hydrocarbylcarboxylic anhydrides and aminoalkanols can provide effective antiwear, antirust, and corrosion-inhibiting properties in lubricant and fuel applications.
摘要:
A multifunctional antiwear and antioxidant lubricant additive is the reaction product of a diacyl halide, a source of phosphorus or a source of phosphorus and an aryl amine. The diacyl halide is derived from a hydrocarbon-substituted succinic anhydride, suitably dodecenyl succinic anhydride, an alkoxylated amine and an inorganic acid halide, suitably thionyl chloride. A suitable source of phosphorus is dibutyl phosphite or bis(nonylphenyl)phosphite. A suitable aryl amine is N-octylphenyl-1-naphthylamine.
摘要:
A lubricating oil, grease or fuel composition contains an antioxidant amount of a Mannich base reaction product of an N-hydrocarbyl-substituted-phenylenediamine or an N,N'-dihydrocarbyl-substituted phenylenediamine such as N,N'-di-sec-butyl-para-phenylenediamine, an aldehyde or ketone and a hindered phenol such as 2,6-di-tert-butylphenol.
摘要:
Reaction products of sulfur-containing diacyl halides with phosphorodithioic acids and phenols or thiazoles are effective EP/antiwear and antioxidant additives for lubricants.