Lubricating oil composition
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United States of America Patent
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Oct 13, 2015
Grant Date -
Sep 27, 2007
app pub date -
May 21, 2007
filing date -
Nov 24, 2004
priority date (Note) -
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Abstract
A lubricating oil composition is provided which is excellent in oxidation stability, base number retention properties, anti-wear properties, extreme pressure properties and anti-corrosion properties and is a low phosphorus and low sulfur lubricating oil composition particularly suitable for internal combustion engines. The composition comprises a lubricating base oil, (A) at least one type selected from the group consisting of metal salts of sulfur-free phosphorus-containing acidic organic compounds, (B) at least one type selected from the group consisting of phosphorus-containing carboxylic acid compounds and metal salts thereof, and (C) at least one type selected from the group consisting of anti-oxidants.
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