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US 11,155,766 B2Granted
Grease composition
AssigneeKyodo Yushi Co., Ltd.
InventorsRyosuke Saito, Yuta Sato, Iwaki Hirooka
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Abstract
A grease composition comprises a thickener, a base oil, and a friction modifier. The friction modifier comprises: at least one selected from the group consisting of fatty acids, fatty acid metal salts, phosphate esters, thiophosphate esters, and zinc dithiophosphates; and a polyhydric alcohol ester.
Claims8
A grease composition comprising 3 to 20% by mass of a thickener, a base oil, and 0.5 to 5% by mass of a friction modifier, wherein
- the thickener is lithium soap, lithium complex soap or urea thickener,
- the base oil is poly α-olefin, and
- the friction modifier comprises:
- a tertiary alkylamine-dimethyl phosphate, and
- sorbitan trioleate,
- all percentages by mass are based on a total mass of the grease composition.
3 more elements
Dependencies are inferred from the claim text.