Patent ID: 8242065

Claim:
A grease composition, which consists of the following components: at least one base oil selected from the group consisting of synthetic hydrocarbon oil, ester-based synthetic oil, and ether-based synthetic oil; wherein the synthetic hydrocarbon oil is at least one selected from the group consisting of poly-α-olefin oligomers, ethylene-α-olefin oligomers, polybutene, alkylbenzene, and alkylnaphthalene; the ester-based synthetic oil is at least one selected from the group consisting of monoesters, diesters, polyol esters, aromatic esters, and carbonate esters; and the ether-based synthetic oil is at least one selected from the group consisting of alkyl diphenyl ether and polypropylene glycol; 8.5-12.5% by weight of at least one thickening agent selected from the group consisting of lithium-based soap, lithium-based complex soap, and a urea-based compound; 5-8% by weight of polytetrafluoroethylene resin powders having a number average molecular weight Mn of 40,000-70,000; and 2-3% by weight of zinc dialkyldithiophosphate having straight or branched alkyl groups of 8-12 carbon atoms.