ADDITIVE COMPOSITION FOR LUBRICANTS AND ITS PRODUCTION METHOD

To provide an additive composition for a lubricant that exhibits excellent viscosity index improvement properties and low-temperature solubility, as well as excellent wear resistance, and a method for producing the same.SOLUTION: An additive composition for a lubricant includes: a copolymer having a...

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Bibliographische Detailangaben
Hauptverfasser:	IYO MASAKI, OSOGOSHI RYOHEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FUELS LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	To provide an additive composition for a lubricant that exhibits excellent viscosity index improvement properties and low-temperature solubility, as well as excellent wear resistance, and a method for producing the same.SOLUTION: An additive composition for a lubricant includes: a copolymer having a structural unit derived from a monofunctional (meth)acrylate monomer (a) that has a branched aliphatic hydrocarbon group of 16 to 24 carbon atoms, and a structural unit derived from a (meth)acrylate monomer (b); and a solvent, wherein the (meth)acrylate monomer (b) differs from the monofunctional (meth)acrylate monomer (a).SELECTED DRAWING: None 【課題】優れた粘度指数改善特性および低温溶解性を発揮すると共に、優れた耐摩耗性をも発揮する潤滑剤用添加剤組成物およびその製造方法を提供すること。【解決手段】炭素原子数１６〜２４の分岐状脂肪族炭化水素基を有する単官能（メタ）アクリレート単量体（ａ）に由来する構成単位と（メタ）アクリレート単量体（ｂ）に由来する構成単位とを有する共重合体、及び溶媒を含み、（メタ）アクリレート単量体（ｂ）は、単官能（メタ）アクリレート単量体（ａ）と異なる潤滑剤用添加剤組成物。【選択図】なし