Refrigeration lubricant and working fluid including the same
AssigneePatech Fine Chemicals Co., Ltd.
InventorsYu-Kai CHEN, Yu-Hsiang WANG, Jung-Tsung HUNG, Jeng-Shiang TSAIH
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Abstract
A refrigeration lubricant includes a dipentaerythritol ester which is formed by subjecting a dipentaerythritol and a fatty acid composition to an esterification reaction. The fatty acid composition includes a fatty acid mixture and a C9 branched chain fatty acid. The fatty acid mixture includes at least two straight chain fatty acids selected from the group consisting of a C7 straight chain fatty acid, a C8 straight chain fatty acid, a C9 straight chain fatty acid, and a C10 straight chain fatty acid. A working fluid including a refrigerant and the refrigeration lubricant is also provided.
Claims9
A refrigeration lubricant, comprising:
- a dipentaerythritol ester which is formed by subjecting a dipentaerythritol and a fatty acid composition to an esterification reaction;
- wherein the fatty acid composition includes a fatty acid mixture and a C9 branched chain fatty acid, the fatty acid mixture including a C7 straight chain fatty acid, a C8 straight chain fatty acid, and a C10 straight chain fatty acid, and
- wherein the C7 straight chain fatty acid is present in an amount ranging from 20 wt % to 43 wt %, the C8 straight chain fatty acid is present in an amount ranging from 31 wt % to 40 wt %, and the C10 straight chain fatty acid is present in an amount ranging from 26 wt % to 40 wt %, based on a total weight of the fatty acid mixture.
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Dependencies are inferred from the claim text.