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US 2017/0362530 A1Published application
Grease composition for lubricating resins and electric power steering device
AssigneesKyodo Yushi Co., Ltd., Nsk Ltd.
InventorsIwaki HIROOKA, Haruhiko KIYOTA, Takeshi YAMAMOTO, Michita HOKAO
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Abstract
The invention provides a grease composition for lubricating resins which contains a base oil, a diurea compound represented by formula (I) as a thickener: R1—NHCONH —R2—NHCONH—R3 (I) (wherein R2 represents a bivalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3 each independently represent a straight-chain or branched alkyl group having 8 to 22 carbon atoms), and a chained hydrocarbon polymer having a weight-average molecular weight of 20,000 to 300,000.
Claims9
A grease composition for lubricating resins, comprising;
- a base oil,
- as a thickener, a diurea compound represented by formula (I):
- R1—NHCONH—R2—NHCONH—R3 (I)
- wherein R2 represents a bivalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3 each independently represent a straight-chain or branched alkyl group having 8 to 22 carbon atoms, and
- a chained hydrocarbon polymer having a weight-average molecular weight of 20,000 to 300,000.
2 more elements
Dependencies are inferred from the claim text.