公开(公告)号：US12227712B2

公开(公告)日：2025-02-18

申请号：US17776400

申请日：2020-11-13

Applicant: ENEOS CORPORATION

Inventor： Yohei Shono ,  Fumiyuki Nara

IPC: C10M101/00 ,  C10M129/56

Abstract: A refrigerating machine oil containing: a lubricating base oil; and a polymer additive, wherein a carbon residue of 10% residual oil is 0.05% by mass or more.

公开(公告)号：US11326118B2

公开(公告)日：2022-05-10

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 ,  C08J7/06 ,  C10M101/02 ,  C10N20/02

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：US12098346B2

公开(公告)日：2024-09-24

申请号：US17920114

申请日：2021-04-27

Applicant: ENEOS CORPORATION

Inventor： Fumiyuki Nara ,  Yohei Shono ,  Hidetoshi Ogata

IPC: C10M169/04 ,  C09K5/04 ,  C10M101/02 ,  C10M107/04 ,  C10M111/04 ,  C10M137/10 ,  C10M145/16 ,  C10M161/00 ,  C10N20/02 ,  C10N30/02 ,  C10N40/30

CPC classification number: C10M169/044 ,  C09K5/042 ,  C10M101/02 ,  C10M107/04 ,  C10M111/04 ,  C10M137/105 ,  C10M145/16 ,  C10M161/00 ,  C10M2203/1006 ,  C10M2205/0225 ,  C10M2209/086 ,  C10M2223/041 ,  C10M2223/047 ,  C10N2020/02 ,  C10N2030/02 ,  C10N2040/30

Abstract: An aspect of the present invention provides a refrigerating machine oil containing a mixed base oil of a first hydrocarbon base oil having a kinematic viscosity at 40° C. of less than 6 mm2/s and a second hydrocarbon base oil having a kinematic viscosity at 40° C. of 6 mm2/s or more, wherein a (A)/(B) ratio is more than 1 and 1.5 or less, wherein (A) is a kinematic viscosity at 40° C. of the mixed base oil, and (B) is the kinematic viscosity at 40° C. of the first hydrocarbon base 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：US11384309B2

公开(公告)日：2022-07-12

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 ,  C09K5/04 ,  C10M105/34 ,  C10M105/38 ,  C10M169/04 ,  C10N20/00 ,  C10N30/02 ,  C10N30/06 ,  C10N40/30

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.

公开(公告)号：US12258532B2

公开(公告)日：2025-03-25

申请号：US17920121

申请日：2021-04-27

Applicant: ENEOS CORPORATION

Inventor： Hidetoshi Ogata ,  Fumiyuki Nara ,  Yohei Shono

IPC: C10M145/14 ,  C09K5/04 ,  C10M101/02 ,  C10M169/04 ,  C10N20/02 ,  C10N30/02 ,  C10N40/30

Abstract: An aspect of the present invention provides a refrigerating machine oil containing: a lubricating base oil; and a polymer containing an unsaturated carboxylic acid ester as a monomer unit, wherein the unsaturated carboxylic acid ester contains an ester of an unsaturated carboxylic acid and an alcohol having a hydrocarbon group represented by the following formula (1): wherein x represents an integer of 5 to 18, and y represents an integer of 3 to 18.

公开(公告)号：US11680220B2

公开(公告)日：2023-06-20

申请号：US17426156

申请日：2020-01-21

Applicant: ENEOS Corporation

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

IPC: C10M173/02 ,  C10M137/02 ,  C10M169/04 ,  C10N40/30

CPC classification number: C10M137/02 ,  C10M169/04 ,  C10M2203/003 ,  C10M2223/049 ,  C10N2040/30

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：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：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.