Abstract:
Systems and methods are provided for block operation during lubricant and/or fuels production from deasphalted oil. During “block” operation, a deasphalted oil and/or the hydroprocessed effluent from an initial processing stage can be split into a plurality of fractions. The fractions can correspond, for example, to feed fractions suitable for forming a light neutral fraction, a heavy neutral fraction, and a bright stock fraction, or the plurality of fractions can correspond to any other convenient split into separate fractions. The plurality of separate fractions can then be processed separately in the process train (or in the sweet portion of the process train) for forming fuels and/or lubricant base stocks. The separate processing can allow for selection of conditions for forming lubricant fractions, such as bright stock fractions, that have a cloud point that is lower than the pour point.
Abstract:
Compositions having a plurality of hard particles and a plurality of lubricant nanoparticles are disclosed. Methods of making and using the compositions are also disclosed.
Abstract:
A dielectric nanolubricant composition is provided. The dielectric nanolubricant composition includes a nano-engineered lubricant additive dispersed in a base. The nano-engineered lubricant additive may include a plurality of solid lubricant nanostructures having an open-ended architecture and an organic, inorganic, and/or polymeric medium intercalated in the nanostructures and/or encapsulate nanostructures. The base may include a grease or oil such as silicone grease or oil, lithium complex grease, lithium grease, calcium sulfonate grease, silica thickened perfluoropolyether (PFPE) grease or PFPE oil, for example. This dielectric nanolubricant composition provides better corrosion and water resistance, high dielectric strength, longer material life, more inert chemistries, better surface protection and asperity penetration, no curing, no staining, and environmentally friendly, compared to current products in the market.
Abstract:
The present invention is directed towards an aqueous lubricant composition comprising hyaluronic acid, organic acid, salts and water, and has a pH of between 5.5 and 7.0 and an osmolality between about 150 and 1,500 mOsm/kg. The lubricant surprisingly has long-lasting lubricity and low osmolality as compared to conventional lubricants on the market.
Abstract:
A lubricity enhancer at extreme temperatures and pressures comprises a first stage solid lubricant selected from the group consisting of molybdenum disulfide, graphite, polytetrafluorethylene and mixtures thereof, a second stage solid lubricant selected from the group consisting of boron nitride, tungsten disulfide and mixtures thereof, and a third stage solid lubricant of an inorganic fluoride characterized by being capable of forming a bonded substantially homogeneous film on a substrate at the elevated temperatures and pressures. The solid lubricants are blended in a concentrated form with a liquid carrier to form a lubricant additive concentrate for addition to a base oil or the solid lubricants are blended directly with the base oil to form a lubricating composition.
Abstract:
Provided is a thermally-curable heat-conductive silicone grease composition which has a high shape-retaining property in an early stage even when the viscosity of the composition is low (i.e., the composition is easy to apply) in the early stage, and which becomes soft (has low hardness) after being cured. A thermally-curable heat-conductive silicone grease composition comprising, as essential components: (A) an organopolysiloxane having a viscosity of 100 to 100,000 mPa·s at 25° C. and containing at least one alkenyl group per molecule; (B) an organopolysiloxane represented by general formula (1) (wherein R1 represents a monovalent hydrocarbon group; R2 represents an alkyl group, an alkoxyalkyl group, an alkenyl group or an acyl group; n represents 2 to 100; and a represents 1 to 3); (C) an organohydrogenpolysiloxane containing at least two hydrogen atoms each directly bound to a silicon atom per molecule; (D) a catalyst selected from the group consisting of platinum and platinum compounds; (F) a heat-conductive filler having a heat conductivity of 10 W/m·° C. or more; and (G) a silica micropowder.
Abstract:
The invention concerns a polymeric antimicrobial composition, a method of producing the same and the uses thereof. The ionomer composition comprises an amine functional polymer compound reacted with silver halide, optionally together with a stabilizing component, such as an organic substance carrying a sulfonamide functional group. The ionomer composition can be obtained by reacting together (i) at least one polyamine and silver halide and optionally at least one organic stabilizer substance or; (ii) at least one polyamine, at least one non-halide silver salt or silver complex, hydrogen halide and/or alkaline metal halide salt and optionally at least one organic stabilizer substance. The present ionomer composition is suitable for use as an antimicrobial coating, antimicrobial finish, antimicrobial additive and as antimicrobial component for formation of new antimicrobial materials.
Abstract:
Composite particles and a method of forming composite particles are described. The composite particles comprise at least one inorganic nanoparticle covalently bound to at least one inorganic microparticle with a linking compound. Lubricant compositions and sprayable dispersion compositions comprising composite particles are also described.
Abstract:
Provided by the present invention is a lubricating oil composition showing a very low frictional coefficient when used as a lubricating oil for a low friction sliding material prepared by blending with an additive selected from a specific phosphorus-zinc-containing compound and a specific sulfur-containing compound, and a sliding mechanism having an excellent low frictional property in which a DLC film containing 5 to 50 atom % of hydrogen is formed or a sliding mechanism having an excellent low frictional property in which 1 to 30 atom % of tungsten (W) or molybdenum (Mo) is contained is provided by combining the above lubricating oil composition with a sliding member having a film of a specific low frictional sliding material on a sliding face.
Abstract:
Composite particles and a method of forming composite particles are described. The composite particles comprise at least one inorganic nanoparticle covalently bound to at least one inorganic microparticle with a linking compound. Lubricant compositions and sprayable dispersion compositions comprising composite particles are also described.