| abstract |
(57) [Problem] To provide a grease composition having excellent heat resistance, low oil release, long life, and radiation resistance. A grease composition containing a base oil and a thickener in an amount of 2 to 50% by mass based on the total amount of the composition, wherein a compound represented by the following general formula (1) is added as a thickener. A grease composition containing 50 to 100% by mass based on the total amount of the thickener. Embedded image (R 1 , R 4 ; an aromatic residue having at least one ether bond; R 2 , R 3 ; a C1-24 divalent organic residue; a: an integer of 1 to 10. ) |