公开(公告)号：US12270007B2

公开(公告)日：2025-04-08

申请号：US18266945

申请日：2021-12-20

Applicant: ENEOS Corporation

Inventor： Fumiyuki Nara ,  Yohei Shono ,  Hidetoshi Ogata

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

Abstract: A refrigerating machine oil having a flash point of 130° C. or lower and a carbon residue of 10% residual oil of 0.02% by mass or more.

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：US12122976B2

公开(公告)日：2024-10-22

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 ,  C10M101/00 ,  C10M137/04 ,  C10M145/14 ,  C10M145/16 ,  C10M169/04 ,  C10N20/02 ,  C10N30/02 ,  C10N40/30

CPC classification number: C10M171/008 ,  C09K5/041 ,  C10M101/00 ,  C10M137/04 ,  C10M145/14 ,  C10M145/16 ,  C10M169/04 ,  C10M2203/003 ,  C10M2203/10 ,  C10M2209/084 ,  C10M2209/086 ,  C10M2223/041 ,  C10N2020/02 ,  C10N2030/02 ,  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：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.

公开(公告)号：US11499114B2

公开(公告)日：2022-11-15

申请号：US16769352

申请日：2018-11-19

Applicant: ENEOS Corporation

Inventor： Fumiyuki Nara ,  Yohei Shono ,  Takeshi Okido ,  Hidetoshi Ogata

IPC: C10M137/10 ,  C09K5/10 ,  C10M169/04 ,  C10N20/02 ,  C10N30/06 ,  C10N40/30

Abstract: A refrigerating oil comprising a lubricating base oil, a first extreme pressure agent containing sulfur and phosphorus as constituent elements and a second extreme pressure agent containing phosphorus but not containing sulfur as constituent elements, and having a kinematic viscosity at 100° C. of 0.5 mm2/s or more and 2.5 mm2/s or less.