GREASE COMPOSITION AND ROLLING DEVICE
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United States of America Patent
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Issued Date -
Jan 22, 2015
app pub date -
Mar 22, 2013
filing date -
Mar 22, 2012
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Abstract
A grease composition which is excellent in seizure resistance can be provided without deteriorating resistance to stirring, in the rolling device, and a rolling device in which the grease composition intervenes to a predetermined portion can be also provided by use of a grease composition comprising a base oil, a thickener and an amine antioxidant, the thickener being a diurea compound obtained by allowing an amine mixture comprising alkylphenylamine, an alkyl group of which has 8 to 16 carbon atoms, and cyclohexylamine, to react with a diisocyanate compound, the amount of cyclohexylamine in the amine mixture being 91 to 99% by mole, and the amount of the amine antioxidant in the grease composition being 21% by mass or more.
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