Lubricating oil composition and grease composition technical field
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United States of America Patent
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May 4, 2010
Grant Date -
Dec 27, 2007
app pub date -
Nov 24, 2005
filing date -
Nov 25, 2004
priority date (Note) -
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Abstract
are hydrogen atoms, alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, aralkyl groups, or any of the foregoing groups can be halogen atom-substituted groups, subscripts a, b, c, d, and e are in conditions of 2≦a+e≦8, b+d≦28, and 1≦c≦10, and b and d can be 0), and a grease composition which further contains a thickening agent in addition to the lubricating oil composition, have distinguished abrasion resistance and rust preventiveness without deteriorating the heat resistance inherent in the lubricating oil and the grease containing a perfluoropolyether oil as a base oil.
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