Abstract: This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises from 0 to 10 mass % mono-C9-alkyl substituted diphenyl amine, and 90 to 100 mass % di-C9-alkyl substituted phenyl amines based upon the weight of the mono- and di-C9-alkyl substituted phenyl amines, preferably where tri-C9-alkyl substituted phenyl amines are minimized and ortho substituted di-C9-alkyl substituted phenyl amines are minimized.

Abstract: This invention relates to a lubricating oil composition, or concentrate therefor, comprising or resulting from the admixing of: (i) base oil, (ii) one or more styrenic block copolymers having a radial structure where one or more blocks derived from conjugated diene monomers are distal to the radial center and one more blocks derived from vinyl aromatic monomers that are proximal to the radial center, and (iii) optionally one or more dispersants and or detergents.

Abstract: The description involves a brush copolymer composition comprising a copolymeric backbone including monomeric repeat units of at least two different acrylate monomers and copolymeric brush arms including monomeric repeat units of at least two different acylated poly(alkylene amine)s, in which the brush arms, the brush copolymer, or both may advantageously exhibit UCST behavior, e.g, in hydrocarbon diluent. Methods of making such copolymers using RAFT and CROP (pseudo-)living reaction processes are also described herein.

Abstract: This invention relates to a lubricating oil composition comprising or resulting from the admixing of: (i) base oil, (ii) an overbased calcium based detergent at treat level to deliver between 500 to 1300 ppm by weight of calcium to the composition; (iii) an overbased magnesium based detergent at treat level to deliver between 500 to 1300 ppm by weight of magnesium to the composition; wherein the total weight of combined calcium and magnesium in the composition ranges from 1000 ppm to 1800 ppm. The composition has a total sulfated ash of less than or equal to 1.0 wt. %, a high temperature high shear viscosity at 150° C. of greater than or equal to 1.8 mPa·s and less than or equal to 2.9 mPa·s, and a total phosphorous level of less than or equal to 0.080 wt. %.

Abstract: This invention relates to a diesel engine lubricating oil composition comprising or resulting from the admixing of: (i) base oil, (ii) a functionalized polymer, (iii) an overbased magnesium based detergent, and (iv) one or more, optionally borated, higher and/or lower molecular weight PIBSA-PAM dispersant. The composition has a total sulfated ash of less than or equal to 0.9 wt. %, a kinematic viscosity at 100° C. of 5 to 20 cSt, a total phosphorous level of less than or equal to 0.120 wt. %, and a total sulfur level of less than or equal to 0.35 wt. % and provides a Detroit DD-13 scuffing test result of at least 31 hours. Also provided are a method of making the composition, a method of lubricating a diesel engine, a method of improving wear performance and engine cleanliness and reducing emissions of a diesel engine, and a diesel engine oil additive concentrate composition.

Abstract: This invention relates to a lubricating oil composition, or concentrate therefor, comprising or resulting from the admixing of: (i) base oil, (ii) one or more styrenic block copolymers having a radial structure where one or more blocks derived from conjugated diene monomers are distal to the radial center and one more blocks derived from vinyl aromatic monomers that are proximal to the radial center, and (iii) optionally one or more dispersants and or detergents.

Abstract: The use of a three-way combination of additives comprising (B)(i) a metal (C10 to C40)hydrocarbyl-substituted hydroxybenzoate detergent; (B)(ii) a poly(C2 to C6)alkenyl-substituted anhydride or poly(C2 to C6)alkenyl-substituted acid; and (B)(iii) an aliphatic hydrocarbyl acid amide, or an aliphatic hydrocarbyl acid imide, or a combination thereof, to inhibit asphaltene precipitation from crude oil.

Abstract: A composition is provided to comprise a non-aqueous medium and a 3,4-oxypyridinone compound of structure (I): with each A being oxygen and/or sulfur, and with a variety of substituents at R1-R5 to enable a solution or an at least semi-stable emulsion to be formed in the non-aqueous medium. Methods of use are included herein, which may be focused on situations where the composition can be used as a lubricant and/or coolant.

Abstract: A composition is provided to comprise a non-aqueous medium and a 3,4-oxypyridine compound of structure (I): with each A being oxygen and/or sulfur, and with a variety of substituents at R1-R5 to enable a solution or an at least semi-stable emulsion to be formed in the non-aqueous medium. Methods of use are included herein, which may be focused on situations where the composition can be used as a lubricant and/or coolant.

Abstract: A composition is provided to comprise a non-aqueous medium and a 3,4-oxypyridinone compound of structure (I): with each A being oxygen and/or sulfur, and with a variety of substituents at R1-R5 to enable a solution or an at least semi-stable emulsion to be formed in the non-aqueous medium. Methods of use are included herein, which may be focused on situations where the composition can be used as a lubricant and/or coolant.

Abstract: A composition is provided to comprise a non-aqueous medium and a 3,4-oxypyridinone compound of structure (I): with each A being oxygen and/or sulfur, and with a variety of substituents at R1-R5 to enable a solution or an at least semi-stable emulsion to be formed in the non-aqueous medium. Methods of use are included herein, which may be focused on situations where the composition can be used as a lubricant and/or coolant.

Abstract: Disclosed herein are addition-polymerizable monomer composition including an amine-derivatized alpha-methyl styrene (ADAMS) monomer according to structure (I) and/or an aminated conjugated aliphatic methylated polyene (ACAMP) monomer according to structure (II): with k, R1, R2, R3, and R4 defined herein. Difunctional monomers of these types with two polymerizable loci and/or two amine loci are also disclosed herein. Further disclosed herein are methods for making such compositions.

Abstract: An additive composition for a marine fuel or a heating oil comprising a stabilized colloidal dispersion of catalytic metal particles, a neutral or overbased alkaline earth metal detergent and a carrier fluid miscible with a marine fuel oil, a heavy fuel oil, a marine distillate fuel, and/or a residual fuel oil. Also provided are marine fuel and/or heating oil compositions having the additive composition described above and associated methods and uses.

Abstract: A lubricating oil composition, a method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine, and a use of a lubricant composition to reduce LSPI events in such an engine. Preferably, the composition comprises a detergent comprising an overbased calcium detergent having a total base number (TBN) of at least 150, wherein the lubricating oil composition has a calcium content of at least 0.08 wt. %, based on the weight of the lubricating oil composition, and wherein the lubricating oil composition has a silicon content of at least 12 ppm by weight, based on the weight of the lubricating oil composition.

Abstract: This invention relates to methods to reduce abnormal combustion events in the operation of an internal combustion engine comprising using a lubricating oil composition comprising/resulting from the admixing of: (i) base oil, (ii) detergent, preferably providing at least 800 ppm Mg and less than 500 ppm Ca; and (iii) abnormal combustion event inhibitor compound(s), preferably comprising at least one phosphorus containing compound providing greater than 0.12 mass % phosphorus; wherein: 1) the lubricating oil composition is a SAE 10W-X, SAE 5W-X or SAE 0W-X blend, where X is 8, 12, 16, 20, or 30; and 2) when the lubricating oil composition is combined with an 88 octane reference fuel, the combination completes at least 1 iteration of 175,000 cycles per iteration, as determined by Sequence IX Test, ASTM D829.

Abstract: A method of limiting the chemical degradation of hydrocarbonaceous liquids due to nitrogen dioxide contamination at elevated temperature comprises the addition thereto of an ionic liquid composed of a cation and a boron- and halogen-free, multi-functional aromatic anion, the ionic liquid serving to inhibit the nitration of hydrocarbonaceous liquid components that initiates degradation.

Abstract: This disclosure relates to functionalized polymers and compositions comprising such where the functionalized polymers comprise amide, imide, and/or ester functionalized partially or fully saturated polymer comprising C4-5 olefins having: i) an Mw/Mn of less than 2, ii) a Functionality Distribution (Fd) value of 3.5 or less, and iii) an Mn of 10,000 g/mol or more (GPC-PS) of the polymer prior to functionalization, provided that, if the polymer prior to functionalization is a copolymer of isoprene and butadiene, then the Mn of the copolymer is greater than 25,000 g/mol (GPC-PS).

Abstract: Disclosed herein is an overbased alkaline earth metal hydrocarbyl-substituted salicylate detergent comprising both carbonate and borate moieties and exhibiting the following characteristics: a basicity index of at least 3.8; a ratio of soap content to mass % boron is greater than 55 mmol/kg; a soap content of at least 330 mmol/kg; a TBN, measured according to ASTM D2896, of at least 220 mg KOH/g; and a mass ratio of borate to carbonate from 0.75 to 6.0, wherein the alkaline earth metal comprises calcium and/or magnesium, and the hydrocarbyl substitution comprises 9 to 30 carbon atoms. Methods of making the boron-containing salicylate detergent, specifically to be package-stable, are also disclosed, as well as package-stable lubricant additive package concentrates and lubricating oil compositions containing same.

Abstract: A transmission fluid composition contains a major amount of a lubricating oil basestock, and a minor amount of an additive package comprising: (i) a mixture comprising two or more phosphites and/or phosphates; (ii) one or more thioester compounds; (iii) a detergent comprising calcium salicylate; and (iv) a poly(alkylene amine)-based ashless dispersant endcapped with metallocene-catalyzed PAO arms. Such a transmission fluid may be used for controlling/reducing wear in at least partially electrically-powered transmissions and/or for cooling/insulating electrical/electronic components of at least partially electrically-powered drivetrains.

Abstract: An ionic liquid composed of nitrogen-free cations and aromatic halogen- and boron-free anions is useful as an additive to prolong the service life of hydrocarbonaceous liquids exposed to nitrogen dioxide contamination, and to provide friction and wear reduction.