公开(公告)号：US20240309137A1

公开(公告)日：2024-09-19

申请号：US18571504

申请日：2022-06-14

申请人： SANYO CHEMICAL INDUSTRIES, LTD. ,  ENEOS Corporation

发明人： Kazuki OGATA ,  Yoshimitsu SUGIYAMA ,  Naohiro TORII ,  Satoshi GOTO ,  Yuya MIZUTANI ,  Hidetoshi OGATA ,  Yuma SEKI ,  Tatsuki NAKAJIMA

IPC分类号： C08F220/24 ,  C10M147/04 ,  C10M171/00

CPC分类号： C08F220/24 ,  C10M147/04 ,  C10M171/008 ,  C10M2213/04

摘要： The present invention relates to a viscosity index improver containing a copolymer (A) that contains, as essential constituent monomers, a fluorine atom-containing monomer (a) represented by the following formula (1) and a monomer (b) represented by the following formula (2),
wherein the copolymer (A) has a solubility parameter of 8.1 to 10.0 (cal/cm3)1/2, and a mass ratio (b/a) of the monomer (b) to the monomer (a) in the monomers constituting the copolymer (A) is 0.01 to 42:




wherein R1 represents a hydrogen atom or a methyl group; R2 is a C2-C4 alkylene group; p is an integer of 0 or 1; q is an integer from 0 to 20, each R2 may be the same as or different from each other when q is 2 or greater; and Y is a monovalent group in which one or more or all of hydrogen atoms in a C1-C40 hydrocarbon group are replaced by fluorine atoms, and




wherein R3 represents a hydrogen atom or a methyl group; —X1— is a group represented by —O— or —NH—; R4 is a C2-C4 alkylene group; r is an integer of 0 or 1; s is an integer from 0 to 20, and each R4 may be the same as or different from each other when s is 2 or greater; and R5 is a C1-C40 hydrocarbon group.

公开(公告)号：US20220267696A1

公开(公告)日：2022-08-25

申请号：US17628086

申请日：2020-07-17

申请人： ENEOS Corporation

发明人： Satoshi NAGAI ,  Tatsuki NAKAJIMA ,  Yuya MIZUTANI ,  Hidetoshi OGATA

IPC分类号： C10M169/04 ,  F25B1/00 ,  C10M105/16 ,  C10M145/08 ,  C09K5/04

摘要： A method for operating a refrigerant circulation system comprising a compressor, a condenser, an expansion mechanism, and an evaporator connected in this order with piping, wherein a refrigerant comprising trifluoroiodomethane is used as a refrigerant; a refrigerating machine oil comprising, as a base oil, a polyolester synthesized from a polyhydric alcohol and fatty acids, with a proportion of a fatty acid having 9 carbon atoms in the fatty acids being 65 mol % or less is used as a refrigerating machine oil; and a temperature of an entire area of the refrigerant circulation system is kept at 160° C. or lower.

公开(公告)号：US20240018437A1

公开(公告)日：2024-01-18

申请号：US18038540

申请日：2021-11-26

申请人： ENEOS Corporation

发明人： Yuya MIZUTANI ,  Kentaro YAMAGUCHI ,  Motoya OKAZAKI ,  Hidetoshi OGATA

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

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

摘要： 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

申请人： ENEOS Corporation

发明人： Satoshi NAGAI ,  Tatsuki NAKAJIMA ,  Yuya MIZUTANI ,  Hidetoshi OGATA

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

摘要： 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：US20220098507A1

公开(公告)日：2022-03-31

申请号：US17423636

申请日：2020-01-21

申请人： ENEOS CORPORATION

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

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

摘要： 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：US20210009884A1

公开(公告)日：2021-01-14

申请号：US16981388

申请日：2019-04-02

申请人： ENEOS Corporation

发明人： Kentaro YAMAGUCHI ,  Yuya MIZUTANI ,  Satoshi NAGAI ,  Hidetoshi OGATA

IPC分类号： C09K5/04 ,  C10M171/00 ,  F25B1/00

摘要： 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：US20240247206A1

公开(公告)日：2024-07-25

申请号：US18290998

申请日：2022-07-29

申请人： ENEOS CORPORATION

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

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

CPC分类号： 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

摘要： 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

申请人： ENEOS CORPORATION

发明人： Satoshi NAGAI ,  Tatsuki NAKAJIMA ,  Yuya MIZUTANI ,  Hidetoshi OGATA

IPC分类号： C10M105/38 ,  C09K5/04

摘要： 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

申请人： ENEOS Corporation

发明人： Satoshi NAGAI ,  Tatsuki NAKAJIMA ,  Yuya MIZUTANI ,  Hidetoshi OGATA

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

摘要： 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：US20220106538A1

公开(公告)日：2022-04-07

申请号：US17428439

申请日：2020-02-19

申请人： ENEOS Corporation

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

IPC分类号： C10M169/04 ,  C10M137/10 ,  C10M137/12 ,  C09K5/04

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