摘要:
A diesel crankcase lubricant composition containing a non-CO.sub.2 blown 2:1 calcium hydroxide overbased calcium salt of a sulfurized alkylphenolate, an alkenyl succinimide and a pour depressant in a mineral oil base. The composition has excellent silver frictional control without requiring incorporation of a silver friction modifier.
摘要:
A lubricant composition includes a mineral lubricanting lubricant composition and a friction modifying amount of a reaction product of an amine and maleic anhydride represented by the formula: ##STR1## in which X and X' are either: ##STR2## in which R and R' can be any hydrocarbon radicals and the total number of carbon atoms in R plus R' varies from about 6 to about 30, and wherein the nitrogen is bound to a secondary carbon atom, or wherein R is a hydrogen atom and R' is a branched hydrocarbon radical having from about 6 to 30 carbon atoms, or ##STR3## in which Y varies from 2 to 6, and in which R" is a hydrocarbon radical having from about 6 to 30 carbon atoms, and R"' is hydrogen or a methyl radical. The lubricant composition finds use in various internal combustion engines including slow and medium speed diesel engines and as a lubricant in the upper cylinder of a slow speed marine diesel engine.
摘要:
A lubricating oil composition designed for use in medium and high speed marine diesel engine crankcases which has a Total Base Number from about 5 to 40 and contains a mineral lubricating oil, an overbased calcium sulfonate, an overbased sulfurized calcium phenate, a zinc dihydrocarbyl dithiophosphate, an alkenylsuccinimide, and a friction reducing amount of at least one acyl glycine oxazoline derivative.
摘要:
Lubricating oil additives, including the calcium salts of sulfurized alkylphenols and dispersants consisting of the reaction products of halogenated polyalkylenes and heterocyclic amines, are substantially decolorized by treatment with small amounts of alkali metal hydrides in a polar solvent at 20.degree. to 120.degree. C. Color improvement is obtained at concentrations ranging from 1 to 75 parts of an alkali metal hydride per 1000 parts of additive.
摘要:
Lubricant oil comprising a hydrocarbon oil of lubricating viscosity; sulfurized normal or highly overbased calcium alkylphenolate a sulfurized overbased calcium alkaline earth metal hydrocarbyl sulfonate; a sulfurized naphthenic base oil-containing composition having a sulfur content of from 1 to 6 percent by weight; and a chloroparaffin containing about 40 percent to 60 percent by weight thereof of chlorine.
摘要:
An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additive which is the reaction product of a dibasic acid anhydride, a polyoxyalkylene diamine, and a heterocyclic azole.
摘要:
This invention provides a gear oil lubricant composition which comprises(a) a major portion of a gear lubricating oil, and(b) a minor amount of, as a friction modifying agent, a reaction product of hydrocarbon-substituted amine, a dibasic acid anhydride and a nitrogen-containing heterocyclic azole compound.
摘要:
A cylinder lubricating oil composition characterized by having a Total Base Number from about 50 to 100 comprising a mineral lubricating oil, from 10 to 20 percent of an overbased calcium sulfonate and an N-hydroxyethyl alkenylsuccinimide represented by the formula: ##STR1## in which R is a straight chain hydrocarbon radical having form about 8 to 22 carbon atoms.
摘要:
An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additive which is the reaction product obtained by first reacting a hydroxybenzoic acid and a polyoxyalkylene polyol to form an ester, and thereafter reacting the ester with an aldehyde or ketone and a substituted or unsubstituted heterocyclic azole to produce the final reaction product.
摘要:
The spreadability of marine diesel cylinder oils is improved by the incorporation therein of a polyoxyethylene sorbitol lanolin of the formula: ##STR1## /wherein n ranges from 14 to 16.