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US 10,920,168 B2Granted
Coffee lubricant having nanoparticles
AssigneeNational Formosa University
InventorsJeng-Haur Horng, Chin-Chung Wei, Shin-Yuh Chern, Kuang-Hsuan Peng, Yang-Yuan Chen, Chia-Chun Yu
Life of this patent
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Abstract
A coffee lubricant having nanoparticles is provided. It consists of 36 to 40 wt % of glycerin, 1 to 7 wt % of gum arabic, 0.3 to 1.3 wt % of nanoparticles, and remaining part of coffee biofuel. In which, the nanoparticles are CuO. The coffee biofuel is extracted from coffee dregs and has a viscosity of 60 to 70 cSt at a temperature of 40 degrees Celsius. It can reduce the friction coefficient and operating temperature. In addition, it can replace the mineral oil.
Claims4
A coffee lubricant consisting of:
- [a] 36 to 40 wt % of glycerin;
- [b] 1 to 7 wt % of gum arabic;
- [c] 0.3 to 1.3 wt % of nanoparticles;
- and
- [d] remaining part of coffee biofuel;
- wherein said nanoparticles are CuO;
- said coffee biofuel is extracted from coffee dregs and has a viscosity of 60 to 70 cSt at a temperature of 40 degrees Celsius.
4 more elements
Dependencies are inferred from the claim text.