JP2014065925A5 - - Google Patents

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JP2014065925A5
JP2014065925A5 JP2014011573A JP2014011573A JP2014065925A5 JP 2014065925 A5 JP2014065925 A5 JP 2014065925A5 JP 2014011573 A JP2014011573 A JP 2014011573A JP 2014011573 A JP2014011573 A JP 2014011573A JP 2014065925 A5 JP2014065925 A5 JP 2014065925A5
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JP
Japan
Prior art keywords
fatty acid
ester
refrigerating machine
machine oil
carbon atoms
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JP2014011573A
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Japanese (ja)
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JP5608826B2 (en
JP2014065925A (en
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Publication of JP2014065925A5 publication Critical patent/JP2014065925A5/ja
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Description

すなわち、本発明のジフルオロメタン冷媒用冷凍機油は、ジペンタエリスリトールと脂肪酸とのエステルを冷凍機油全量基準で１０質量％以上含有し、エステルを構成する脂肪酸における炭素数５〜７の脂肪酸の割合が２０モル％以上であり、且つエステルを構成する脂肪酸は炭素数８〜９の分岐脂肪酸を含有し、ペンタエリスリトールと脂肪酸とのエステルを更に含有することを特徴とするものである。 That is, the refrigerating machine oil for difluoromethane refrigerant of the present invention contains an ester of dipentaerythritol and a fatty acid in an amount of 10 % by mass or more based on the total amount of the refrigerating machine oil, and the proportion of the fatty acid having 5 to 7 carbon atoms in the fatty acid constituting the ester. The fatty acid which is 20 mol% or more and which constitutes an ester contains a branched fatty acid having 8 to 9 carbon atoms, and further contains an ester of pentaerythritol and a fatty acid .

Claims (3)

ジペンタエリスリトールと脂肪酸とのエステルを冷凍機油全量基準で１０質量％以上含有し、
前記エステルを構成する前記脂肪酸における炭素数５〜７の脂肪酸の割合が２０モル％以上であり、且つ前記エステルを構成する前記脂肪酸は炭素数８〜９の分岐脂肪酸を含有し、
ペンタエリスリトールと脂肪酸とのエステルを更に含有する、ジフルオロメタン冷媒用冷凍機油。 Containing 10 mass% or more of an ester of dipentaerythritol and a fatty acid based on the total amount of refrigerating machine oil,
The ratio of the fatty acid having 5 to 7 carbon atoms in the fatty acid constituting the ester is 20 mol% or more, and the fatty acid constituting the ester contains a branched fatty acid having 8 to 9 carbon atoms ,
A refrigerating machine oil for a difluoromethane refrigerant , further containing an ester of pentaerythritol and a fatty acid . 冷凍機油全量基準で０．１〜５質量％のエポキシ化合物を更に含有する、請求項１に記載の冷凍機油。   The refrigerating machine oil according to claim 1, further comprising 0.1 to 5% by mass of an epoxy compound based on the total amount of the refrigerating machine oil. 請求項１又は２に記載の冷凍機油と、ジフルオロメタン冷媒とを含有する、冷凍機用作動流体組成物。A working fluid composition for a refrigerator, comprising the refrigerator oil according to claim 1 or 2 and a difluoromethane refrigerant.
JP2014011573A 2014-01-24 2014-01-24 Refrigeration oil Expired - Lifetime JP5608826B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014011573A JP5608826B2 (en) 2014-01-24 2014-01-24 Refrigeration oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014011573A JP5608826B2 (en) 2014-01-24 2014-01-24 Refrigeration oil

Related Parent Applications (1)

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JP2010167324A Division JP5555568B2 (en) 2010-07-26 2010-07-26 Refrigeration oil

Related Child Applications (1)

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JP2014150996A Division JP5837656B2 (en) 2014-07-24 2014-07-24 Refrigeration oil

Publications (3)

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JP2014065925A JP2014065925A (en) 2014-04-17
JP2014065925A5 true JP2014065925A5 (en) 2014-09-11
JP5608826B2 JP5608826B2 (en) 2014-10-15

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Family Applications (1)

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JP2014011573A Expired - Lifetime JP5608826B2 (en) 2014-01-24 2014-01-24 Refrigeration oil

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JP (1) JP5608826B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6736050B2 (en) * 2014-07-04 2020-08-05 Ｅｎｅｏｓ株式会社 Antiwear additive, refrigerator oil and working fluid composition for refrigerator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9221217D0 (en) * 1992-10-09 1992-11-25 Ici Plc Working fluid composition
JP4009358B2 (en) * 1998-03-10 2007-11-14 新日本石油株式会社 Lubricating oil composition for refrigerator using HFC-32

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