公开(公告)号：US11225623B2

公开(公告)日：2022-01-18

申请号：US16065253

申请日：2016-12-19

Applicant: NOF CORPORATION

Inventor： Takeshi Kajiki ,  Fumitaka Yoshikawa ,  Seita Ueda

IPC: C10M105/38 ,  C09K5/04 ,  C10N20/02 ,  C10N40/30

Abstract: It is provided an ester for a refrigerator oil and of mixed alcohols and mixed monocarboxylic acids. The mixed alcohols include dipentaerythritol and tripentaerythritol in a mass ratio of 90/10 to 99.7/0.3, and the mixed monocarboxylic acids include n-pentanoic acid and 2-methyl butanoic acid in a mass ratio of 50/50 to 80/20. The ester has a kinematic viscosity of 50 to 150 mm2/s at 40° C.