公开(公告)号：US12091606B2

公开(公告)日：2024-09-17

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 ,  C10N30/10 ,  C10N40/30

CPC classification number: C09K5/044 ,  C10M107/32 ,  C10M129/10 ,  C10M129/18 ,  C10M129/40 ,  C10M169/04 ,  C09K2205/10 ,  C10M2207/023 ,  C10M2207/042 ,  C10M2207/126 ,  C10M2209/1023 ,  C10M2215/064 ,  C10N2030/10 ,  C10N2040/30

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：US11485926B2

公开(公告)日：2022-11-01

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: C10M137/10 ,  C10M137/08 ,  C10M107/32 ,  C10M169/04 ,  C10N30/06 ,  C10N40/30 ,  C10N70/00

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：US12091629B2

公开(公告)日：2024-09-17

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 ,  C10N30/10 ,  C10N40/30

CPC classification number: C10M105/38 ,  C09K5/045 ,  C10M2207/042 ,  C10N2030/10 ,  C10N2040/30

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：US11993742B2

公开(公告)日：2024-05-28

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 ,  C10N40/30

CPC classification number: C09K5/044 ,  C10M105/38 ,  C10M105/46 ,  C09K2205/12 ,  C09K2205/24 ,  C10M2207/2835 ,  C10M2207/3045 ,  C10N2040/30

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：US11384271B2

公开(公告)日：2022-07-12

申请号：US16981388

申请日：2019-04-02

Applicant: ENEOS Corporation

Inventor： Kentaro Yamaguchi ,  Yuya Mizutani ,  Satoshi Nagai ,  Hidetoshi Ogata

IPC: C09K5/04 ,  C10M171/00 ,  F25B1/00 ,  C10N20/00 ,  C10N20/02 ,  C10N40/30

Abstract: One aspect of the present invention is a refrigerating machine including a refrigerant circulation system including a compressor, a condenser, an expansion mechanism, and an evaporator, and the refrigerant circulation system being filled with a refrigerant and a refrigerating machine oil, wherein the refrigerating machine oil contains: a first base oil having a compatible region with the refrigerant in a range of a temperature of 30° C. or lower and an oil ratio of 1 to 80% by mass; and a second base oil having a kinematic viscosity at 40° C. lower than the first base oil and having a narrower compatible region with the refrigerant than the first base oil.

公开(公告)号：US11001779B2

公开(公告)日：2021-05-11

申请号：US16327444

申请日：2017-09-14

Applicant: ENEOS Corporation

Inventor： Yohei Shono ,  Kentaro Yamaguchi ,  Yuya Mizutani ,  Takeshi Okido ,  Hidetoshi Ogata

IPC: C09K5/04 ,  C10M137/10 ,  C10M171/00 ,  C10M169/04 ,  C10M105/38 ,  C10N20/00 ,  C10N30/10 ,  C10N40/30

Abstract: The present invention, in one aspect, provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): wherein R1 and R2 each independently represent a monovalent hydrocarbon group, and R3 and R4 each independently represent a hydrogen atom or an alkyl group, the refrigerating machine oil being used with a refrigerant including an unsaturated hydrofluorocarbon.

公开(公告)号：US12297402B2

公开(公告)日：2025-05-13

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

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：US12252662B2

公开(公告)日：2025-03-18

申请号：US17428439

申请日：2020-02-19

Applicant: ENEOS Corporation

Inventor： Yohei Shono ,  Tatsuki Nakajima ,  Shogo Hashimoto ,  Yuya Mizutani ,  Hidetoshi Ogata

IPC: C10M169/04 ,  C09K5/04 ,  C10M137/10 ,  C10M137/12 ,  C10N30/06 ,  C10N40/30

Abstract: One aspect of the present invention is a refrigerating machine oil comprising a base oil, a dithiophosphoric acid ester, and a phosphonate ester.

公开(公告)号：US12247177B2

公开(公告)日：2025-03-11

申请号：US17422948

申请日：2020-02-19

Applicant: ENEOS Corporation

Inventor： Yohei Shono ,  Tatsuki Nakajima ,  Shogo Hashimoto ,  Yuya Mizutani ,  Hidetoshi Ogata

IPC: C10M169/04 ,  C09K5/04 ,  C10M137/08 ,  C10M137/10 ,  C10N40/30

Abstract: One aspect of the present invention is a refrigerating machine oil comprising a base oil, a dithiophosphoric acid ester, and an amine salt of an acidic phosphoric acid ester.

公开(公告)号：US11505760B2

公开(公告)日：2022-11-22

申请号：US16077932

申请日：2017-02-15

Applicant: ENEOS Corporation

Inventor： Yohei Shono ,  Akira Tada ,  Yuya Mizutani ,  Takeshi Okido ,  Hidetoshi Ogata ,  Tatsuki Nakajima

IPC: C09K5/04 ,  C10M171/00 ,  C10M101/00 ,  C10M131/04 ,  C10M169/04 ,  C10N20/00 ,  C10N30/02 ,  C10N40/30

Abstract: The present invention provides a refrigerating machine oil comprising a hydrocarbon-based base oil having a viscosity index of 120 or less, and the refrigerating machine oil being used with a 1-chloro-2,3,3,3-tetrafluoropropene refrigerant.