Grease composition
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United States of America Patent
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Oct 25, 2011
Grant Date -
Oct 7, 2010
app pub date -
Oct 26, 2006
filing date -
Nov 4, 2005
priority date (Note) -
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Abstract
A grease composition, which comprises (A) a perfluoropolyether base oil, (B) a thickener, and (C) barium sulfate and/or antimony oxide, where 0.1-50% by weight of the component (B) and 1-25% by weight of the component (C) are contained, has a distinguished effect on improvements of abrasion resistance, friction characteristics, load durability, high-temperature durability and corrosion resistance without any deterioration of heat resistance by adding at least one of barium sulfate and antimony oxide, each having an average primary particle size of 0.1-20 μm, as component (C).
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