The present invention is toward a base oil or lubricant additives, methods of using the same, lubricant compositions including the same, and methods of forming the lubricant compositions. A base oil or lubricant additive has Structure I or Structure II as described herein.

Various embodiments disclosed relate to a lubricant. The lubricant includes a first non-amphiphilic triglyceride. The lubricant further includes a second non-amphiphilic triglyceride. The second non-amphiphilic triglyceride is different from the first non-amphiphilic triglyceride. The lubricant further includes a non-amphiphilic glycol ester.

Various embodiments disclosed relate to a lubricant. The lubricant includes a first non-amphiphilic triglyceride. The lubricant further includes a second non-amphiphilic triglyceride. The second non-amphiphilic triglyceride is different from the first non-amphiphilic triglyceride. The lubricant further includes a non-amphiphilic glycol ester.

The present invention relates to a lubricating oil composition containing a base oil (A), a molybdenum dithiocarbamate (B), an ester-based ashless friction modifier (C), and a metal salicylate (D), wherein the content of a molybdenum atom derived from the molybdenum dithiocarbamate (B) is 650 ppm by mass or more on the basis of the whole amount of the lubricating oil composition; a content ratio [C/B.sub.Mo] of the ester-based ashless friction modifier (C) to a molybdenum atom derived from the molybdenum dithiocarbamate (B) is 5.0 to 10 in terms of a mass ratio; the content of a salicylate soap group derived from the metal salicylate (D) is 0.50% by mass or more on the basis of the whole amount of the lubricating oil composition; and a kinematic viscosity at 100° C. is 4.0 mm.sup.2/s or more and less than 9.3 mm.sup.2/s, and a high-temperature high-shear viscosity at 150° C. is 1.7 mPa.Math.s or more and less than 2.9 mPa.Math.s. In accordance with the present invention, a viscosity-reduced lubricating oil composition in which nonetheless a molybdenum dithiocarbamate and an ashless friction modifier are jointly used, not only friction can be reduced early after commencement of lubrication, but also such a state can be maintained, is provided.

The present invention relates to a lubricating oil composition containing a base oil (A), a molybdenum dithiocarbamate (B), an ester-based ashless friction modifier (C), and a metal salicylate (D), wherein the content of a molybdenum atom derived from the molybdenum dithiocarbamate (B) is 650 ppm by mass or more on the basis of the whole amount of the lubricating oil composition; a content ratio [C/B.sub.Mo] of the ester-based ashless friction modifier (C) to a molybdenum atom derived from the molybdenum dithiocarbamate (B) is 5.0 to 10 in terms of a mass ratio; the content of a salicylate soap group derived from the metal salicylate (D) is 0.50% by mass or more on the basis of the whole amount of the lubricating oil composition; and a kinematic viscosity at 100° C. is 4.0 mm.sup.2/s or more and less than 9.3 mm.sup.2/s, and a high-temperature high-shear viscosity at 150° C. is 1.7 mPa.Math.s or more and less than 2.9 mPa.Math.s. In accordance with the present invention, a viscosity-reduced lubricating oil composition in which nonetheless a molybdenum dithiocarbamate and an ashless friction modifier are jointly used, not only friction can be reduced early after commencement of lubrication, but also such a state can be maintained, is provided.

A composition comprising an orthoester and an organosilane, and in some embodiments, a metal deactivator, antioxidant, lubricant and/or corrosion inhibitor. Also, disclosed is use of the composition for use in increasing thermal conductivity of internal fluids in air conditioning and refrigerant systems.

The present invention provides: an oil agent additive that is easily soluble in an oil agent and is outstandingly effective in reducing the friction coefficient; and an oil agent composition that contains the oil agent additive. This oil agent additive contains at least one compound represented by a Chemical Formula (1).

##STR00001##

(In the formula: R.sup.1 and R.sup.2 are each an aliphatic hydrocarbon group with a carbon number of 1-33; the total carbon number of R.sup.1 and R.sup.2 is 2-34; X is a single bond or an aliphatic hydrocarbon group with a carbon number of 1-5; and A is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)

The present invention provides: a compound that has a low melting point and is capable of forming a film of high hydrophobicity, and a composition containing this compound. The compound of the present invention is represented by chemical formula (1).

##STR00001##

(In the formula, R.sup.1 and R.sup.2 are each a C.sub.1-C.sub.33 aliphatic hydrocarbon group, the total number of carbons of in R.sup.1 and R.sup.2 is 14-34, X is a single bond or a C.sub.1-C.sub.5 aliphatic hydrocarbon group, and A is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)

The present invention provides: a rust inhibitor that has excellent rust inhibiting and anti-corrosive properties, not only on iron members, but also on non-iron metal members, and can prevent rust and corrosion over long periods; a rust inhibitor composition that contains the rust inhibitor, a coating formation material; a coating obtained from the rust inhibitor, the rust inhibitor composition, or the coating formation material; and a metal component that comprises the coating. This rust inhibitor contains at least one compound represented by a Chemical Formula (1). ##STR00001##
(In the formula: R.sup.1 is a hydrogen atom or an aliphatic hydrocarbon group with a carbon number of 1-33; R.sup.2 is an aliphatic hydrocarbon group with a carbon number of 1-33; the total carbon number of R.sup.1 and R.sup.2 is 1-34; X is a single bond or an aliphatic hydrocarbon group with a carbon number of 1-5; either A.sup.1 or A.sup.2 is —OH; and the other is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)

The present invention provides: a rust inhibitor that has excellent rust inhibiting and anti-corrosive properties, not only on iron members, but also on non-iron metal members, and can prevent rust and corrosion over long periods; a rust inhibitor composition that contains the rust inhibitor, a coating formation material; a coating obtained from the rust inhibitor, the rust inhibitor composition, or the coating formation material; and a metal component that comprises the coating. This rust inhibitor contains at least one compound represented by a Chemical Formula (1). ##STR00001##
(In the formula: R.sup.1 is a hydrogen atom or an aliphatic hydrocarbon group with a carbon number of 1-33; R.sup.2 is an aliphatic hydrocarbon group with a carbon number of 1-33; the total carbon number of R.sup.1 and R.sup.2 is 1-34; X is a single bond or an aliphatic hydrocarbon group with a carbon number of 1-5; either A.sup.1 or A.sup.2 is —OH; and the other is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)