Title:
エンジン油の摩耗保護を増強させるための分散剤粘度指数向上剤
Document Type and Number:
Japanese Patent JP6902519
Kind Code:
B2
Abstract:
An engine oil composition including greater than 50 wt.% of a base oil of lubricating viscosity selected from a Group III, a Group IV or a Group V base oil, and mixtures thereof, 0.1-10 wt.% of a dispersant viscosity index improver that a reaction product of an olefin copolymer, an acylating agent and a polyamine, one or more calcium-containing detergents that provide from about 900 ppmw to about 2500 ppmw of calcium to the engine oil composition, and one or more molybdenum-containing compounds. The engine oil composition has an SAE viscosity grade of OW-X or 5W-X, wherein X = 16, 20, 30, or 40; from about 500 ppmw to about 1000 ppmw of phosphorus; and a total sulfated ash content of no greater than 1.2 wt.%, as measured by ASTM D874. Methods of using the engine oil composition to lubricate or operate an engine are also described.
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Inventors:
Paul Lanson
Guillaume Carpentier
Guillaume Carpentier
Application Number:
JP2018198273A
Publication Date:
July 14, 2021
Filing Date:
October 22, 2018
Export Citation:
Assignee:
Afton Chemical Corporation
International Classes:
C10M161/00
Domestic Patent References:
| JP2015527480A | ||||
| JP2008063566A | ||||
| JP2009173868A | ||||
| JP2008189919A |
Foreign References:
| US20170044460 | ||||
| US20150111797 | ||||
| WO2015138108A1 |
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes