Title:
ESTER FOR REFRIGERATOR OIL, AND WORKING FLUID COMPOSITION COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2020/218082
Kind Code:
A1
Abstract:
[Problem] Provided is an ester which is for a refrigerator oil and can achieve excellent refrigerant compatibility, when used in combination with a non-chlorine-based refrigerant. [Solution] This ester for a refrigerator oil comprises an ester reaction product of component (A), component (B) and component (C). With respect to the 1.0 mol of a constituent component derived from component (A), the amount of a constituent component derived from component (B) is 0.02-0.4 mol, the amount of a constituent component derived from component (C) is 3.2-3.96 mol, and formula (1) is satisfied. (A) is a pentaerythritol, (B) is a linear divalent carboxylic acid having 4-10 carbon atoms, and (C) is a monovalent carboxylic acid having 4-10 carbon atoms. (1): α≤peak group (a)/peak group (b)≤β(1), (2): α=-10×(number of moles of constituent component derived from component (B))+6.5, and (3): β=−10×(the number of moles of constituent component derived from component (B))+7.5. (Peak group (a) is the sum of peak areas obtained by a gas chromatography as observed at a retention time of 28-40 minutes, and peak group (b) is the sum of peak areas obtained by the gas chromatography as observed at a retention time of 40-60 minutes.)
Inventors:
UEDA SEITA (JP)
ODA KAZUHIRO (JP)
KAWAMOTO HIDEKI (JP)
ODA KAZUHIRO (JP)
KAWAMOTO HIDEKI (JP)
Application Number:
PCT/JP2020/016390
Publication Date:
October 29, 2020
Filing Date:
April 14, 2020
Export Citation:
Assignee:
NOF CORP (JP)
International Classes:
C10M105/42; C10N20/00; C10N40/30
Domestic Patent References:
| WO2013008487A1 | 2013-01-17 | |||
| WO2012026214A1 | 2012-03-01 | |||
| WO2014017596A1 | 2014-01-30 |
Foreign References:
| JP2013507483A | 2013-03-04 | |||
| JPH0625690A | 1994-02-01 | |||
| JPH04220496A | 1992-08-11 | |||
| JP2015096470A | 2015-05-21 |
Other References:
HIDEKI YAMAMOTO: "SP value, Basic ■ Application and Calculation methods", 2006, JOHO KIKO CO. LTD.
See also references of EP 3950906A4
See also references of EP 3950906A4
Attorney, Agent or Firm:
HOSODA Masutoshi et al. (JP)
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