A stabilized antifoaming composition having at least three components. The first component is an antifoaming agent. The second component is an ethylene-(meth)acrylic acid copolymer. The third component is a salt.

The lubricating oil composition for a shock absorber of the present invention contains (A) a base oil composed of a mineral oil and/or a synthetic oil, (B) a tertiary amine represented by the following general formula (I), and (C) a zinc dithiophosphate represented by the following general formula (II): ##STR00001## wherein R.sup.1 and R.sup.2 each independently represent an aliphatic hydrocarbon group having from 1 to 5 carbon atoms, and R.sup.3 represents an aliphatic hydrocarbon group having from 12 to 24 carbon atoms in the general formula (I), ##STR00002## wherein R.sup.4 to R.sup.7 each independently represent one selected from an alkyl group and an alkenyl group each having 1 to 24 carbon atoms in the general formula (II).

The lubricating oil composition for a shock absorber of the present invention contains (A) a base oil composed of a mineral oil and/or a synthetic oil, (B) a tertiary amine represented by the following general formula (I), and (C) a zinc dithiophosphate represented by the following general formula (II): ##STR00001## wherein R.sup.1 and R.sup.2 each independently represent an aliphatic hydrocarbon group having from 1 to 5 carbon atoms, and R.sup.3 represents an aliphatic hydrocarbon group having from 12 to 24 carbon atoms in the general formula (I), ##STR00002## wherein R.sup.4 to R.sup.7 each independently represent one selected from an alkyl group and an alkenyl group each having 1 to 24 carbon atoms in the general formula (II).

A lubricant composition for application onto a surface of drive elements includes: a base oil; and a silasesquioxane. In an embodiment, the silasesquioxane has the chemical formula [RSiO3/2].sub.n with: n=6, 8, 10, 12; where R independently of one another=alkyl (C1-C20), cycloalkyl (C3-C20), alkenyl (C2-C20), cycloalkenyl (C5-C20), alkynyl (C2-C20), cycloalkynyl (C5-C20), aryl (C6-C18) or heteroaryl group, oxy, hydroxy, alkoxy (C4-C10), oxirane polymer (degree of polymerization with 4 to 20 repeat units), carboxy, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halogen, epoxy (C2-C20), ester, aryl ether, fluoroalkyl, blocked isocyanate, acrylate, methacrylate, mercapto, nitrile, amine, and/or phosphine group, each substituted or unsubstituted.

A lubricant composition for application onto a surface of drive elements includes: a base oil; and a silasesquioxane. In an embodiment, the silasesquioxane has the chemical formula [RSiO3/2].sub.n with: n=6, 8, 10, 12; where R independently of one another=alkyl (C1-C20), cycloalkyl (C3-C20), alkenyl (C2-C20), cycloalkenyl (C5-C20), alkynyl (C2-C20), cycloalkynyl (C5-C20), aryl (C6-C18) or heteroaryl group, oxy, hydroxy, alkoxy (C4-C10), oxirane polymer (degree of polymerization with 4 to 20 repeat units), carboxy, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halogen, epoxy (C2-C20), ester, aryl ether, fluoroalkyl, blocked isocyanate, acrylate, methacrylate, mercapto, nitrile, amine, and/or phosphine group, each substituted or unsubstituted.

A composition and method for reducing the coefficient of friction and required pulling force of a wire or cable are provided. A composition of aqueous emulsion is provided that is environmentally friendly, halogen free and solvent free. The composition is compatible with various types of insulating materials and may be applied after the wire or cable is cooled and also by spraying or submerging the wire or cable in a bath. The composition contains lubricating agents that provide lower coefficient of friction for wire or cable installation and continuous wire or cable surface lubrication thereafter.

A composition and method for reducing the coefficient of friction and required pulling force of a wire or cable are provided. A composition of aqueous emulsion is provided that is environmentally friendly, halogen free and solvent free. The composition is compatible with various types of insulating materials and may be applied after the wire or cable is cooled and also by spraying or submerging the wire or cable in a bath. The composition contains lubricating agents that provide lower coefficient of friction for wire or cable installation and continuous wire or cable surface lubrication thereafter.

Lubricant compositions, core-shell nanoparticles, and related methods are disclosed. In an exemplary embodiment, a lubricant composition includes a plurality of core-shell nanoparticles. The nanoparticles include a core, a first shell disposed on the core, and a second shell disposed on the first shell. The first shell is formed from a siliceous material and the second shell is formed from a hydrophobic material. The first and second shells form functional coatings that reduce wear and friction of parts lubricated with the lubricant composition.

Lubricant compositions, core-shell nanoparticles, and related methods are disclosed. In an exemplary embodiment, a lubricant composition includes a plurality of core-shell nanoparticles. The nanoparticles include a core, a first shell disposed on the core, and a second shell disposed on the first shell. The first shell is formed from a siliceous material and the second shell is formed from a hydrophobic material. The first and second shells form functional coatings that reduce wear and friction of parts lubricated with the lubricant composition.

Disclosed is a magnetic dendrimer compound and a method for preparing the magnetic dendrimer compound, the molecular formula of which is shown in formula (I): Γ(CH.sub.2).sub.3N.sub.(2.sup.n+1.sub.−1)R.sup.1.sub.(2.sup.n+2.sub.−2)R.sup.2.sub.(2.sup.n+1.sub.)(I). In this formula, Γ indicates magnetic particles coated with SiO.sub.2 on a surface thereof, the magnetic particles having been modified by a silane coupling agent; (CH.sub.2).sub.3N.sub.(2.sup.n+1.sub.−1)R.sup.1.sub.(2.sup.n+2.sub.−2) is a dendritic group, and R.sup.2.sub.(2.sup.n+1.sub.) is a lipophilic group, with 0≤n≤100. Further disclosed is a lubricant comprising the magnetic dendrimer compound.