LUBRICANT COMPOSITION

To provide a lubricant composition which contains a synthetic base oil, meets physical properties of an oil seal rubber, and can suppress oil leakage.SOLUTION: The lubricant composition contains (A) a lubricant base oil, (B) a sulfur-based extreme pressure agent, and (C) a phosphorus-based extreme p...

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Bibliographische Detailangaben
Hauptverfasser:	MORI TAKASHI, HIRAGA KOTARO, KISHI MISATO, MAMORI NOBUHARU, ARAYOSHI TAKATOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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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Beschreibung
Zusammenfassung:	To provide a lubricant composition which contains a synthetic base oil, meets physical properties of an oil seal rubber, and can suppress oil leakage.SOLUTION: The lubricant composition contains (A) a lubricant base oil, (B) a sulfur-based extreme pressure agent, and (C) a phosphorus-based extreme pressure agent, wherein the lubricant composition contains, as the (A) lubricant base oil, (A-1) a diester of an aliphatic dicarboxylic acid of carbon number of 4-12 and a monohydric alcohol of a carbon number of 1-20 at an amount of 1-20 mass% to the total mass of the lubricant composition.SELECTED DRAWING: None 【課題】本発明は、上記事情に鑑み、合成系基油を含む潤滑油組成物であって、オイルシールゴムの物性に適合し油漏れを抑制することができる潤滑油組成物を提供することを目的とする。【解決手段】(A)潤滑油基油と、（B）硫黄系極圧剤と、及び（Ｃ）リン系極圧剤とを含有する潤滑油組成物において、前記(A)潤滑油基油として少なくとも（A-１）炭素数４〜１２の脂肪族ジカルボン酸と炭素数１〜２０の１価アルコールとのジエステルを潤滑油組成物全体の質量に対して１〜２０質量％となる量で含有することを特徴とする、前記潤滑油組成物。【選択図】なし