ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYAL..............................JDIM360 (Ver 1.5 21 Nov 2005) - 1100000/00881276EUROPEAN PATENT APPLICATIONA319990908EP98304250.819980529enenen157887/97 19970530JP104090/98 19980331JP19990908199936199812021998496 6C 10M 129/10 A 6C 10M 129/36 B 6C 10M 129/44 B 6C 10M 135/10 B 6C 10M 135/30 B 6C 10M 137/12 B 6C 10M 159/20 B 6C 10M 159/22 B 6C 10M 159/24 B 6C 10N 30:06 Z // C10N30:06deSchmiermittelzusammensetzung die eine Mischung von Metalsalzen organischer Säuren enthaltenenLubricating oil composition containing a mixture of metal salts of aromatic organic acidsfrComposition lubrifiante contenant un mélange de sels de métaux d'acides organiquesTONEN CORPORATION00223068JA 157887/97Palaceside Building, 1-1 Hitotsubashi, 1-ChomeChiyoda-Ku, Tokyo 100JPTaguchi, Shigeko4-1-404 Suwa-ChoKawagoe City, SaitamaJPOno, Megumi2-301 Keyakidai-Danchi, 1-13-2 Wakaba-ChoTachikawa City, TokyoJPTomizawa, Hirotaka5-29-12 NakaaraiTokorozawa City, TokyoJPFletcher Watts, Susan J.et al00058893ESSO Engineering (Europe) Limited, Patents and Licences, Mailpoint 72, Esso House, Ermyn WayLeatherhead, Surrey KT22 8XEGBATBECHCYDEDKESFIFRGBGRIEITLILUMCNLPTSEALLTLVMKROSI19990908199936

To provide a novel lubricating oil composition containing an organic acid metal salt having excellent friction coefficient reducing effects.

A lubricating oil composition comprising a lubricating base stock and an effective amount of a mixture of metal salts of chain-hydrocarbon-group-substituted aromatic organic acids. Each of the aromatic groups has been substituted by at least one chain hydrocarbon group. The number of chain hydrocarbon groups each carrying at C-2 or C-3 thereof the associated aromatic group bonded thereto is in a range of from 30% to 90% of the total number of the chain hydrocarbon groups.