Abstract: A novel additive comprising a highly grafted, multi-functional olefin copolymer comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C.sub.3 to C.sub.23 alpha-monoolefin and, optionally, a polyene, wherein the copolymer of ethylene and at least one C.sub.3 to C.sub.23 alpha-monoolefin has grafted thereon from 0.3 to 0.75 carboxylic groups per 1000 number average molecular weight units of olefin copolymer and wherein the olefin copolymer has a number average molecular weight of between 20,000 and 150,000, and lubricating oil concentrates and compositions containing the same are provided.

Abstract: A novel copolymer of an unsaturated acidic reactant and an atactic vinyl terminated propene polymer (VTPP) and its use in preparation of fuel and lubricant additives is taught. The VTPP has a major amount of polymer chains containing terminal vinyl unsaturation, a number average molecular weight of at least 500, and comprises at least 70 weight per cent propene and 0 to 30 weight per cent of at least one olefin selected from the group consisting of C.sub.2 and C.sub.4 to C.sub.10 olefins. The unsaturated acidic reactant comprises at least one unsaturated C.sub.4 to C.sub.10 carboxylic or dicarboxylic acid or anhydride. An oil soluble dispersant additive of the invention useful in oleaginous compositions is prepared by contacting the atactic VTPP copolymer with at least one nucleophilic reagent selected from the group consisting of amines, alcohols, metal reactants and mixtures thereof under conditions effective to form adducts of the nucleophilic reagent with the copolymer.

Abstract: Ashless dispersants are formed using polymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal vinylidene group and, optionally, the polymer contains up to 25 mol percent of ethylene or a C.sub.4 to C.sub.10 monoolefin polymerized into the polymer chains.

Abstract: Ashless dispersants are formed using polymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal vinylidene group and, optionally, the polymer contains up to 25 mol percent of ethylene or a C.sub.4 to C.sub.10 monoolefin polymerized into the polymer chains.

Abstract: Ashless dispersants are formed using polymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal vinylidene group and, optionally, the polymer contains up to 25 mol percent of ethylene or a C.sub.4 to C.sub.10 monoolefin polymerized into the polymer chains.

Abstract: A method of protecting silver parts and inhibiting copper corrosion in an internal combustion engine and a silver-wear and copper-corrosion protection additive in a lubricating composition comprising a major proportion of an oil of lubricating viscosity and a minor amount of a silver-wear and copper-corrosion protection additive comprising the reaction product of an amine, formic acid, and a C.sub.5 to C.sub.60 carboxylic acid.

Abstract: A small amount of hydrogen sulfide, an olefin, a mercaptan, an epoxide, a phosphite or a phosphine are added to a zinc dialkyldithiophosphate salt to decrease the rate of color generation upon storage and/or exposure to heat.

Abstract: A lubricant composition is disclosed comprising a major amount of a lubricating oil composition and a minor amount of an overbased detergent-dispersant lubricant additive comprising a reaction product of an alkaline earth metal phenate and an ammonium alkylbenzene sulfonate wherein the phenate and the sulfonate are reacted in the presence of an alcohol of 1 to 4 carbon atoms and said reaction product is stripped to remove ammonia, water and said alcohol.

Abstract: The process comprises in sequence the following steps: (a) introducing into a reaction zone a sulfonic acid comprising a neutral ammonium sulfonate; (b) adding to and mixing with said sulfonic acid a substantially inert diluent, an alkaline earth metal compound, water, and an alkanol to form a hydration mixture; (c) heating said hydration mixture at an elevated temperature to hydrate said alkaline earth metal compound; (d) adding a molybdenum-containing compound to said reaction zone at a time during the period beginning after the introduction of said sulfonic acid and extending through said refluxing of said hydration mixture; and (e) adding an acidic material to said reaction zone at a temperature within the range of about 26.7.degree. C. (80.degree. F.) to about 68.5.degree. C. (155.degree. F.) to form a molybdenum-alkaline earth metal sulfonate dispersion.

Abstract: A method for recovering oil from an oil bearing formation which comprises injecting into the formation an aqueous fluid comprising an effective amount of the reaction product of an alkenyl succinic anhydride and a tertiary amine.

Abstract: A method is disclosed for moving and eventually recovering oil from a subterranean oil-bearing formation which comprises injecting into the formation an aqueous fluid containing a succinamate surface-active agent and method for mobility control (imparting viscosity) to a surfactant system used for recovery or moving of oil in an oil-bearing formation.

Abstract: A method is disclosed for moving and eventually recovering oil from a subterranean oil-bearing formation which comprises injecting into the formation an aqueous fluid containing a succinamate surface-active agent and method for mobility control (imparting viscosity) to a surfactant system used for recovery or moving of oil in an oil-bearing formation.