LUBRICANT COMPOSITION

To provide a lubricant composition that contains at least a certain amount of a base oil excluding a hetero atom-containing base oil, and has an excellent viscosity index.SOLUTION: A lubricant composition contains a component (A): a copolymer satisfying specific requirements (A), a component (B): a...

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Bibliographic Details
Main Authors KATO SHOTA, NAKANO TAEKO, TAKASHIMA YORIYUKI, KAMANO HIDEKI, IWAI TOSHIAKI
Format Patent
LanguageEnglish
Japanese
Published 11.10.2021
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
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Summary:To provide a lubricant composition that contains at least a certain amount of a base oil excluding a hetero atom-containing base oil, and has an excellent viscosity index.SOLUTION: A lubricant composition contains a component (A): a copolymer satisfying specific requirements (A), a component (B): a hetero atom-containing base oil (x), and a component (C): a base oil (y) excluding the hetero atom-containing base oil (x). The content of the component (C) is 55 mass% or more relative to 100 mass% of the total amount of the lubricant composition.SELECTED DRAWING: None 【課題】ヘテロ原子含有基油以外の基油を一定量以上含有し、かつ、良好な粘度指数を有する潤滑油組成物を提供する。【解決手段】成分（Ａ）：特定の要件を満たす共重合体（Ａ）と、成分（Ｂ）：ヘテロ原子含有基油（ｘ）と、成分（Ｃ）：ヘテロ原子含有基油（ｘ）以外の基油（ｙ）とを含有し、成分（Ｃ）の含有量が、潤滑油組成物の全量１００質量％基準で、５５質量％以上である、潤滑油組成物。【選択図】なし
Bibliography:Application Number: JP20200065437