LUBRICANT VISCOSITY IMPROVER AND LUBRICANT COMPOSITION USING SAME

The present invention relates to a lubricant viscosity improver having excellent shear stability and a lubricant composition using the same. The lubricant viscosity improver according to the present invention comprises a copolymer obtained by copolymerization of ethylene, an alpha-olefin having four...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, So-Young, SUDEVAN, Sujith, SONG, Ha-Na
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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:	The present invention relates to a lubricant viscosity improver having excellent shear stability and a lubricant composition using the same. The lubricant viscosity improver according to the present invention comprises a copolymer obtained by copolymerization of ethylene, an alpha-olefin having four or more carbon atoms, and a diene monomer. La présente invention concerne un améliorant de viscosité pour lubrifiant ayant une excellente stabilité au cisaillement et une composition lubrifiante l'utilisant. L'améliorant de viscosité pour lubrifiant selon la présente invention comprend un copolymère obtenu par copolymérisation d'éthylène, d'une alpha-oléfine ayant quatre atomes de carbone ou plus, et d'un monomère diénique. 본 발명은 우수한 전단 안정성을 가진 윤활유 점도 개선제 및 이를 이용한윤활유 조성물에 관한 것으로, 본 발명에 따른 윤활유 점도 개선제는 에틸렌, 탄소수 4 이상의 알파-올레핀 및 디엔 모노머로 공중합되는 공중합체를 포함한다.