The present invention relates to heat transfer compositions comprising refrigerant, lubricant and stabilizer, wherein the refrigerant comprises about 49% by weight difluoromethane (HFC-32), about 11.5% by weight pentafluoroethane (HFC-125), and about 39.5% by weight trifluoroiodomethane (CF.sub.3I), and wherein said lubricant comprises polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and wherein said stabilizer comprises an alkylated naphthalene and optionally but preferably an acid depleting moiety.

A compound of formula (I): wherein W is independently selected from the group consisting of H, F, CI, Br, and I; X is independently selected from the group consisting of H, F, CI, Br, and I; Y is independently selected from the group consisting of F, CI, Br, and I; Z is independently selected from the group consisting of H, F, CI, Br, and I; n is an integer from 1 to 8; and n′ is an integer from 1 to 12.

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A lubricant composition for engines has at least one base oil and one fatty amine.

The present invention concerns compositions, and more specifically lubricating compositions, comprising an alternative to di-iso tridecyl adipate (DITA). The present invention therefore discloses compositions comprising di-(2-hexyldecyl) succinate, advantageously from a renewable source, and the uses thereof as lubricating compositions, in particular as hydraulic oils or engine oils.

Provided is a one-pack type ultraviolet-thickable thermally conductive silicone grease composition which, at the initial stage, has a low viscosity (is easy to apply) but has high shape retentivity and which, after curing, is pliable (has low hardness). The ultraviolet-thickable thermally conductive silicone grease composition comprises, as essential components, (A) an organopolysiloxane having a viscosity at 25° C. of 50-100,000 mPa.Math.s and containing at least one alkenyl group in the molecule, (B) a liquid organohydrogenpolysiloxane which has a viscosity at 25° C. of 100 mPa.Math.s or less, contains 2-10 silicon-atom-bonded hydrogen atoms in the molecule and contains at least one alkoxy and/or epoxy group bonded to a silicon atom through an alkylene group and in which the polysiloxane has a degree of polymerization of 15 or less and the skeleton of the polysiloxane includes a cyclic structure, (C) a photoactivable platinum complex curing catalyst, and (D) a thermally conductive filler having a thermal conductivity of 10 W/m.Math.° C. or greater.

The invention relates to liquid hydrocarbons containing cyclic ortho esters as dehydrating dehydrating icing inhibitors and to methods of using the compounds. The liquid hydrocarbons include fuels such aviation fuels, lubricants, hydraulic fluids and hydrocarbon solvents.

The present invention provides a grease composition or a lubricating oil composition which is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface of a rolling bearing, is excellent in durability in a high temperature and speed operation, and can be used for a long time. A grease-packed bearing (1) has an inner ring (2), an outer ring (3), and a plurality of rolling elements (4). A sealing member (6) for sealing a grease composition (7) is provided at openings (8a) and (8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) includes a base grease composed of a base oil and a thickener and an additive added to the base grease. The additive contains at least one compound selected from among plant-derived polyphenolic compounds and compounds formed by decomposition thereof. The above-described compounds include tannin, gallic acid, ellagic acid, chlorogenic acid, caffeic acid, curcumin, quercetin, and quinic acid.

A method of making an overbased calcium sulfonate or calcium magnesium sulfonate grease using one or more delay periods between the addition of at least a portion of a facilitating acid, such as DDBSA, and at least a portion of the next subsequently added ingredient. The delay period may be a temperature adjustment delay or a holding delay period. An overbased calcium sulfonate or calcium magnesium sulfonate grease composition comprises 0.5%-5% of a facilitating acid, allows for a reduced amount of overbased calcium sulfonate below 22%, and allows for a reduced amount of calcium hydroxyapatite to provide 10-25% of hydroxide equivalent basicity of the total hydroxide equivalent basicity due to calcium hydroxyapatite and added calcium hydroxide, while maintaining a high dropping point.

An environmentally-improved motor oil blend and related methods for properly lubricating components of an engine and favorably modifying a plastic response of components of the engine, the blend being free of zinc di-alkyl-di-thiophosphates (ZDDP) and free of zinc di-thiophosphate (ZDTP), comprising: a motor oil selected from the motor oil group consisting of Group I, Group II, Group III, Group IV, and Group V motor oils; a motor oil additive comprising alpha-olefins and hydroisomerized hydro-treated severe hydrocracked base oil; ZDDP omitted from the chemical constituents of the motor oil; and ZDTP omitted from the chemical constituents of the motor oil.

A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid, wherein the conjugate acid is represented by General Formula (A) below, and wherein a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less,

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where, in General Formula (A), R.sub.1, R.sub.2, and R.sub.3 are each independently a group including a hydrocarbon group, with the proviso that at least one of the hydrocarbon groups in R.sub.1, R.sub.2, and R.sub.3 is a straight-chain hydrocarbon group having 6 or greater carbon atoms.