Lubricant composition having improved high-temperature durability
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorJae Hyeon Kim
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Abstract
The present disclosure relates to a lubricant composition including a base oil, a thickener and a thickener supplement, and a method of manufacturing the same. The lubricant composition of the present disclosure is effective at improving performance at high-temperature by maintaining the evaporation amount and friction characteristics even at high temperatures, thus inhibiting oil contamination of powertrain parts and the like and maintaining sticking phenomenon even in a high-temperature environment, thereby increasing the durability of parts.
Claims7
A method of manufacturing a lubricant composition, the method comprising:
- heating a base oil;
- obtaining a solution by adding and reacting the heated base oil with a thickener;
- dewatering the reacted solution;
- adding a thickener supplement to the dewatered solution;
- and
- stirring the dewatered solution added with the thickener supplement,
- wherein the lubricant composition comprises:
- 60 to 90 wt % of the base oil;
- 5 to 35 wt % of the thickener;
- and
- 2 to 7 wt % of the thickener supplement,
- wherein adding the thickener supplement to the dewatered solution includes adding polypropylene and ceresin during cooling of the dewatered solution, and
- wherein the thickener supplement is configured such that a polypropylene/ceresin ratio (P/C ratio) is 0.40 to 2.35.
Dependencies are inferred from the claim text.