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AssigneeHanval Inc.
InventorsKwang Soon KIM, Dong Choon LEE, Young Uk KWON
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The present disclosure relates to a synthetic vegetable oil and an environmental-friendly flame-retardant hydraulic oil composition including the same, and a preparation method thereof, and provides a method of preparing a glycerin-ester-based lubricating base oil through a catalyst-free and rinsing-free process, a glycerin-ester-based lubricating base oil that is a synthetic vegetable oil obtained by the method, and an environmental-friendly flame-retardant hydraulic oil composition that contains the glycerin-ester-based lubricating base oil and that is capable of reducing electricity consumption by 7 to 8% compared to mineral oil-based lubricating oils due to excellent flame retardancy (with self-extinguishing function) and lubricity.
A method of preparing a glycerin-ester-based lubricating base oil, the method comprising:
A glycerin-ester-based lubricating base oil, comprising a glycerin-ester formed by a reaction of glycerin with a fatty acid-containing raw material that contains to one or more of C10 to C22 fatty acids and that is extracted from a natural vegetable oil.
An environmental-friendly flame-retardant hydraulic oil composition comprising:
Dependencies are inferred from the claim text.