公开(公告)号：US20240018437A1

公开(公告)日：2024-01-18

申请号：US18038540

申请日：2021-11-26

Applicant: ENEOS Corporation

Inventor： Yuya MIZUTANI ,  Kentaro YAMAGUCHI ,  Motoya OKAZAKI ,  Hidetoshi OGATA

IPC: C10M105/46 ,  F25B43/02 ,  F25B1/00 ,  C10M105/38 ,  C10M105/40 ,  C09K5/04

CPC classification number: C10M105/46 ,  F25B43/02 ,  F25B1/00 ,  C10M105/38 ,  C10M105/40 ,  C09K5/042 ,  C10M2207/2835 ,  C10M2207/2895 ,  C10M2207/3045 ,  C10N2040/30

Abstract: A working fluid filled in a refrigerant circulation system comprising a compressor, a condenser, an expansion mechanism, an evaporator, and an accumulator, the working fluid comprising: a refrigerant; and a refrigerating machine oil, wherein the refrigerant comprises a hydrocarbon refrigerant having 2 to 4 carbon atoms, the refrigerating machine oil has a mixed aniline point of 20° C. or higher and 50° C. or lower and a viscosity index of 110 or more, an amount of the refrigerant dissolved in the working fluid is 40% by mass or less under conditions of a temperature of 80° C. and an absolute pressure of 2.8 MPa, and the refrigerating machine oil has a kinematic viscosity at −10° C. of 200 mm2/s or more and 3000 mm2/s or less.

公开(公告)号：US20220325159A1

公开(公告)日：2022-10-13

申请号：US17621847

申请日：2020-06-17

Applicant: ENEOS Corporation

Inventor： Satoshi NAGAI ,  Tatsuki NAKAJIMA ,  Yuya MIZUTANI ,  Hidetoshi OGATA

IPC: C09K5/04 ,  C10M105/38 ,  C10M105/46

Abstract: A working fluid composition for a refrigerating machine, containing: a refrigerant containing trifluoroiodomethane; and a refrigerating machine oil containing a complex ester synthesized from a polyhydric alcohol, a polybasic acid, and at least one selected from a monohydric alcohol and a monocarboxylic fatty acid.

公开(公告)号：US20220098506A1

公开(公告)日：2022-03-31

申请号：US17426156

申请日：2020-01-21

Applicant: ENEOS Corporation

Inventor： Yohei SHONO ,  Tatsuki NAKAJIMA ,  Shogo HASHIMOTO ,  Hidetoshi OGATA

IPC: C10M137/02 ,  C10M169/04 ,  C10N40/30

Abstract: The present invention provides a method for producing a refrigerating machine oil, comprising blending a hydrocarbyl hydrogen phosphite having an acid value of 100 mgKOH/g or less with a lubricating base oil or an oil composition containing a lubricating base oil, and a refrigerating machine oil obtained by the method.

公开(公告)号：US20240247206A1

公开(公告)日：2024-07-25

申请号：US18290998

申请日：2022-07-29

Applicant: ENEOS CORPORATION

Inventor： Fumiyuki NARA ,  Tomohiro TAKAKI ,  Yuya MIZUTANI ,  Makoto ANDO ,  Hidetoshi OGATA

IPC: C10M171/00 ,  C09K5/04 ,  C10M101/02 ,  C10M105/04 ,  C10M137/10 ,  C10M159/00 ,  C10M169/04 ,  C10N20/00 ,  C10N30/06 ,  C10N40/30

CPC classification number: C10M171/008 ,  C09K5/04 ,  C10M101/02 ,  C10M105/04 ,  C10M137/10 ,  C10M159/005 ,  C10M169/044 ,  C09K2205/12 ,  C10M2203/003 ,  C10M2203/1025 ,  C10M2203/1085 ,  C10M2205/0285 ,  C10M2205/163 ,  C10M2223/047 ,  C10N2020/017 ,  C10N2030/06 ,  C10N2040/30

Abstract: A base oil for a refrigerating machine oil, having cyclic saturates of 40% by mass or less and non-cyclic saturates of 60% by mass or more in saturates, a density at 15° C. of 0.805 g/cm3 or lower, and a normal paraffin content of 50% by mass or less.

公开(公告)号：US20230135466A1

公开(公告)日：2023-05-04

申请号：US17915262

申请日：2021-03-12

Applicant: ENEOS CORPORATION

Inventor： Satoshi NAGAI ,  Tatsuki NAKAJIMA ,  Yuya MIZUTANI ,  Hidetoshi OGATA

IPC: C10M105/38 ,  C09K5/04

Abstract: An aspect of the present invention provides a refrigerating machine oil containing an ester-based base oil, at least one epoxy compound selected from an alkyl glycidyl ether and an aryl glycidyl ether, and a phenol-based antioxidant, wherein a content of the epoxy compound is 0.7% by mass or more based on a total amount of the refrigerating machine oil, and the refrigerating machine oil is used with a refrigerant containing trifluoroiodomethane.

公开(公告)号：US20220332996A1

公开(公告)日：2022-10-20

申请号：US17623424

申请日：2020-06-17

Applicant: ENEOS Corporation

Inventor： Satoshi NAGAI ,  Tatsuki NAKAJIMA ,  Yuya MIZUTANI ,  Hidetoshi OGATA

IPC: C09K5/04 ,  C10M107/32 ,  C10M129/10 ,  C10M129/18 ,  C10M129/40 ,  C10M169/04

Abstract: A working fluid composition for a refrigerating machine, containing: a refrigerant containing trifluoroiodometbane; and a refrigerating machine oil containing a polyol ester and a hindered phenol compound, wherein a content of the hindered phenol compound is 0.6 to 10% by mass based on a total amount of the refrigerating machine oil.

公开(公告)号：US20210269730A1

公开(公告)日：2021-09-02

申请号：US17258304

申请日：2019-07-30

Applicant: ENEOS Corporation

Inventor： Yuji SHITARA ,  Yohei SHONO ,  Hidetoshi OGATA ,  Kazushi KODAMA ,  Hiroshi MATSUURA ,  Satoshi MASUYAMA

IPC: C10M105/06 ,  C10M101/02 ,  C08J7/06

Abstract: A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains at least one selected from the group consisting of a mineral oil and alkyl benzene as a lubricating base oil.

公开(公告)号：US20230159851A1

公开(公告)日：2023-05-25

申请号：US17920131

申请日：2021-04-27

Applicant: ENEOS CORPORATION

Inventor： Fumiyuki NARA ,  Yohei SHONO ,  Hidetoshi OGATA

IPC: C10M171/00 ,  C09K5/04 ,  C10M169/04 ,  C10M145/14 ,  C10M145/16 ,  C10M137/04 ,  C10M101/00

CPC classification number: C10M171/008 ,  C09K5/041 ,  C10M101/00 ,  C10M137/04 ,  C10M145/14 ,  C10M145/16 ,  C10M169/04 ,  C10N2040/30

Abstract: An aspect of the present invention provides a refrigerating machine oil containing: a lubricating base oil; a phosphorus-containing additive; and a polymer comprising an unsaturated carboxylic acid ester as a monomer unit.

公开(公告)号：US20220098507A1

公开(公告)日：2022-03-31

申请号：US17423636

申请日：2020-01-21

Applicant: ENEOS CORPORATION

Inventor： Yohei SHONO ,  Tatsuki NAKAJIMA ,  Shogo HASHIMOTO ,  Yuya MIZUTANI ,  Hidetoshi OGATA

IPC: C10M137/08 ,  C10M169/04 ,  C10M107/32

Abstract: The present invention provides a refrigerating machine oil comprising a lubricating base oil and at least one selected from the group consisting of an amine salt of phosphonic acid and an amine salt of phosphonic acid monoester, and a method for producing the same.

公开(公告)号：US20210032558A1

公开(公告)日：2021-02-04

申请号：US16967242

申请日：2019-02-06

Applicant: ENEOS Corporation

Inventor： Yohei SHONO ,  Fumiyuki NARA ,  Takeshi OKIDO ,  Hidetoshi OGATA

IPC: C10M137/10 ,  C10M169/04 ,  C10M105/34 ,  C10M105/38 ,  C09K5/04

Abstract: One aspect of the present invention is a refrigerating machine oil containing: a base oil containing an ester of an alcohol and a fatty acid; a compound represented by the following formula (1): wherein R1 and R2 each independently represent a monovalent hydrocarbon group, R3 represents a divalent hydrocarbon group, and R4 represents hydrogen atom or a monovalent hydrocarbon group, and the refrigerating machine oil having a kinematic viscosity at 40° C. of 10 mm2/s or less.