| 摘要 |
There is provided a grease composition, in which a grease film on the surface of the applied part is made thicker compared with conventional grease compositions, this thickness is maintained for a long period of time, and as a result, a longer service life against seizure compared with conventional grease compositions is assured. The grease composition comprises a base oil and a thickener, wherein the thickener is 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, and an amount of cyclohexylamine in the total amount of the alkylphenylamine and cyclohexylamine is from 91 to 99% by mole. |
| 主权项 |
1. A grease composition comprising a base oil and a thickener, wherein said thickener is a diurea compound obtained by allowing
an amine mixture comprising (a) alkylphenylamine, wherein the alkyl group thereof has 8 to 16 carbon atoms, and (b) cyclohexylamine, to react with a diisocyanate compound, wherein a molar ratio of said cyclohexylamine in the amine mixture is from 93 to 99% by mole.
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