POLY(METH)ACRYLATE-BASED VISCOSITY INDEX IMPROVER, AND LUBRICATING OIL ADDITIVE AND LUBRICATING OIL COMPOSITION CONTAINING VISCOSITY INDEX IMPROVER

• Main Authors: TAKAGI AKIRA, UENO RYUICHI, TAGAWA KAZUO, MATSUDA HIROMITSU
• Format: Patent
• Language: English; Japanese
• Published: 22.01.2015
• Subjects: CHEMISTRY; FUELS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

PROBLEM TO BE SOLVED: To provide a viscosity index improver which can sufficiently decrease a high shear viscosity at 100°C while maintaining a high shear viscosity at 150°C, and to provide a lubrication oil additive and a lubricating oil composition containing the viscosity index improver.SOLUTION:...