公开(公告)号：US20250109348A1

公开(公告)日：2025-04-03

申请号：US18708253

申请日：2022-11-14

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Akio KOJIMA ,  Tadashi KISEN ,  Yukio YOSHIDA ,  So NAKAJIMA

IPC: C10M105/36 ,  C09K5/04 ,  C10N40/30

Abstract: A refrigerator oil composition may have an appropriate dissolution viscosity when a hydrocarbon-based refrigerant is dissolved and having a low solubility of the hydrocarbon-based refrigerant. A mixed composition for a refrigerator may include such a refrigerator oil composition. Such a refrigerator oil composition used for a refrigerant may include a hydrocarbon-based refrigerant, and one or more aromatic ester-based compounds (A) of formula (1): in which R1 is a linear or branched alkyl group having 5 or more and 24 or less carbon atoms or a linear or branched alkenyl group having 5 or more and 24 or less carbon atoms; m is an integer of 2 or more and 4 or less; and a plurality of R1's may be the same or different.

公开(公告)号：US20230091226A1

公开(公告)日：2023-03-23

申请号：US17759962

申请日：2021-01-20

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： So NAKAJIMA

IPC: C10M137/04 ,  C10M169/04 ,  C10M107/34 ,  C09K5/04

Abstract: A refrigerator oil composition with a base oil (A), and a first phosphorus compound (B). The first phosphorus compound (B) is a first phosphite ester (B1) represented by formula (1) and a second phosphite ester (B2) represented by formula (2): (R11—O—)n—PO—R12)3-n   (1) A method of producing a refrigerator oil composition by mixing a base oil (A) with a first phosphorus compound (B). A refrigerator mixture composition includes the refrigerator oil composition and a refrigerant.

公开(公告)号：US20210095222A1

公开(公告)日：2021-04-01

申请号：US16634355

申请日：2018-08-03

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： So NAKAJIMA ,  Tomoya USHIYAMA

IPC: C10M171/00 ,  C09K5/04 ,  C10M129/18 ,  C10M169/04

Abstract: A refrigerator oil composition containing an epoxy compound (X) having at least one of an olefin skeleton and a terpene skeleton, and a base oil (Y).

公开(公告)号：US20240093120A1

公开(公告)日：2024-03-21

申请号：US18261331

申请日：2022-03-15

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： So NAKAJIMA

IPC: C10M169/04 ,  C09K5/04 ,  C10M107/24 ,  C10M107/34 ,  C10M129/10 ,  C10M129/18 ,  C10M155/02

CPC classification number: C10M169/044 ,  C09K5/045 ,  C10M107/24 ,  C10M107/34 ,  C10M129/10 ,  C10M129/18 ,  C10M155/02 ,  C10N2040/30

Abstract: A refrigerator oil composition may effectively suppress an increase in an acid value even when a ratio of an unsaturated fluorinated hydrocarbon compound (HFO) in a refrigerant is increased. Such a refrigerator oil composition can used for a refrigerant and may include one or more unsaturated fluorinated hydrocarbon compounds of formula (1):


CxFyH  (1),

wherein x is an integer of 2 to 6, y is an integer of 1 to 11, and z is an integer of 1 to 11, and one or more carbon-carbon unsaturated bonds are present in the molecule. The refrigerator oil composition may include a base oil (A), and one or more silicone compounds (B) selected from the group consisting of an unmodified silicone (B1) and a modified silicone (B2), wherein a content of the silicone compound (B) is 0.05% by mass or more based on the total amount of the refrigerator oil composition.

公开(公告)号：US20220064093A1

公开(公告)日：2022-03-03

申请号：US17418080

申请日：2019-12-26

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： So NAKAJIMA ,  Yukio YOSHIDA

IPC: C07C43/205 ,  C10M105/18 ,  C08G65/04 ,  C10M107/34

Abstract: A polyalkylene glycol-based compound may have formula (1): wherein R1 is a monovalent aromatic hydrocarbon group having 6 to 42 ring carbon atoms; R2 is a monovalent aromatic hydrocarbon group having 6 to 42 carbon atoms or a hydrogen atom; R3 is a divalent hydrocarbon group having 2 to 4 carbon atoms; and m is a number in a range of from 1 to 40.

公开(公告)号：US20190292476A1

公开(公告)日：2019-09-26

申请号：US16318417

申请日：2017-12-19

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： So NAKAJIMA ,  Tomoya MATSUMOTO

IPC: C10M107/24 ,  C09K5/04

Abstract: The present invention relates to a refrigerator oil containing a specified amount of a polyvinyl ether-based compound (A) containing a structural unit (a1) having a methoxy group in a side chain thereof and a specified amount of a polyvinyl ether-based compound (B) containing a structural unit (b2) of a specified structure; a refrigerator oil composition containing the refrigerator oil; and a production method the refrigerator oil.

公开(公告)号：US20230076704A1

公开(公告)日：2023-03-09

申请号：US17904347

申请日：2021-02-19

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： So NAKAJIMA ,  Masaya KUBOTA

IPC: C09K5/04

Abstract: A mixed composition including a refrigerant including at least one unsaturated fluorinated hydrocarbon compound selected from the compound having a formula CxFyHz, x is an integer of 2 to 6, y is an integer of 1 to 11, z is an integer of 1 to 11, and the compound has at least one unsaturated carbon-carbon bond, and a refrigerator oil including a base oil (A); a phosphorus-based extreme pressure agent (B); a decomposition inhibitor (C) that inhibits the decomposition of the unsaturated fluorinated hydrocarbon in the presence of an iron; and an antioxidant (D), wherein (C) controls the amount of fluorine in the refrigerator oil composition at 30 ppm by mass or less after mixing the refrigerator oil with R1234yf at a mass ratio of 1:1, and subjecting the mixture to an autoclave test at 175° C. for 336 hours with a metal catalyst including iron, copper, and aluminum.

公开(公告)号：US20210130729A1

公开(公告)日：2021-05-06

申请号：US16632663

申请日：2019-01-08

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： So NAKAJIMA

IPC: C10M169/04 ,  C10M107/34 ,  C10M107/24 ,  C10M137/12 ,  C10M137/04 ,  C10M137/02 ,  C09K5/04

Abstract: A lubricating oil composition excellent in the wear resistance and a refrigerator oil composition excellent in the oxidation stability using the lubricating oil composition are provided by a lubricating oil composition containing a base oil (A) and a phosphine derivative (B) having one or more oxygen atom in a molecule.

公开(公告)号：US20190264129A1

公开(公告)日：2019-08-29

申请号：US15776185

申请日：2016-11-18

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： So NAKAJIMA ,  Masato KANEKO ,  Tetsuhiko FUKANUMA ,  Ryo MATSUBARA ,  Yuki YOKOI

IPC: C10M169/04 ,  C10M107/34 ,  C10M129/16 ,  C10M129/08 ,  C10M133/16 ,  C10M141/06 ,  C09K5/04

Abstract: The lubricating oil composition for a refrigerator of the present invention is used with a refrigerant containing carbon dioxide, and contains a base oil (A) containing a polyoxyalkylene glycol as a major component, and an alcohol (B) having at least one hydroxy group, in which a total number of the hydroxy group and an ether bond is from 2 to 3 (provided that the number of an ether bond may be 0).

公开(公告)号：US20190233759A1

公开(公告)日：2019-08-01

申请号：US16318421

申请日：2017-09-25

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Masato KANEKO ,  Tomoya MATSUMOTO ,  So NAKAJIMA

IPC: C10M169/04 ,  F25B31/00 ,  C10M137/04 ,  C10M145/34 ,  C10M145/04 ,  C10M129/74 ,  C10M127/06 ,  C10M141/10 ,  C10M161/00 ,  C09K5/04

CPC classification number: C10M169/044 ,  C09K5/042 ,  C10M101/02 ,  C10M127/06 ,  C10M129/74 ,  C10M137/04 ,  C10M141/10 ,  C10M145/04 ,  C10M145/26 ,  C10M145/34 ,  C10M161/00 ,  C10M169/04 ,  C10M2203/003 ,  C10M2203/06 ,  C10M2207/283 ,  C10M2209/04 ,  C10M2209/107 ,  C10M2223/041 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2240/30 ,  F25B1/00 ,  F25B31/002

Abstract: The present invention relates to a refrigerator oil containing (A) a mineral oil having a kinematic viscosity at 40° C. of 0.50 mm2/s or more and 8.00 mm2/s or less, (B) a polyphosphate ester-based compound, and (C) a dissolution aid for the component (B).