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：US11555159B2

公开(公告)日：2023-01-17

申请号：US17290496

申请日：2019-11-06

Applicant: ENEOS Corporation

Inventor： Yohei Susukida ,  Yasushi Onumata ,  Akira Tada ,  Noriko Ayame

IPC: C10M141/10 ,  C10M169/04 ,  C10M129/54 ,  C10M133/12 ,  C10M133/44 ,  C10M135/10 ,  C10M137/02 ,  C10M139/00 ,  C10M177/00 ,  C10N40/00 ,  C10N30/04 ,  C10N30/02 ,  C10N30/10 ,  C10N30/14 ,  C10N40/04 ,  C10N30/00 ,  C10N40/25 ,  C10N70/00

Abstract: A lubricating oil composition including: a lubricant base oil; (A) a triazole metal deactivator in an amount of 0.005 to 0.03 mass % in terms of nitrogen on the basis of the total mass of the composition; and (B1) a succinimide compound represented by the following general formula (1) in an amount of 0.0005 to 0.02 mass % in terms of nitrogen on the basis of the total mass of the composition: wherein in the general formula (1), R1 and R2 each independently represent a hydrogen atom or a C1-36 linear or branched chain alkyl or alkenyl group, and at least one of R1 and R2 is a C8-36 linear or branched chain alkyl or alkenyl group, and n represents an integer of 1 to 10.

公开(公告)号：US12024667B2

公开(公告)日：2024-07-02

申请号：US18255725

申请日：2021-08-31

Applicant: ENEOS CORPORATION

Inventor： Akira Tada ,  Yasushi Onumata ,  Noriko Ayame ,  Yohei Susukida

IPC: C09K5/10

CPC classification number: C09K5/10

Abstract: A cooling liquid composition including: a hydrocarbon fluid having a mass-based average carbon number of 13 or more and 16 or less in which a total amount of a hydrocarbon having 13 or more and 15 or less carbon atoms is 50% by mass or more relative to an entire amount of the hydrocarbon fluid.

公开(公告)号：US11208608B2

公开(公告)日：2021-12-28

申请号：US16343226

申请日：2017-10-20

Applicant: ENEOS Corporation

Inventor： Kentaro Yamaguchi ,  Akira Tada ,  Tatsuki Nakajima ,  Takeshi Okido ,  Hidetoshi Ogata

IPC: C10M107/28 ,  C09K5/04 ,  C09K5/08 ,  C10N20/02 ,  C10N30/02 ,  C10N40/30

Abstract: In an aspect, the present invention provides a refrigerating machine oil comprising a poly(meth)acrylate as a base oil, wherein the poly(meth)acrylate comprises a hydrogenated poly(meth)acrylate, a content of a unit having a carbon-carbon double bond present at a terminal in the poly(meth)acrylate is 6% by mole or less relative to total units constituting the poly(meth)acrylate, and a kinematic viscosity at 40° C. of the hydrogenated poly(meth)acrylate is 1 to 1000 mm2/s, the refrigerating machine oil being used with a refrigerant comprising a refrigerant selected from difluoromethane, a mixture of difluoromethane and pentafluoroethane, a mixture of difluoromethane, pentafluoroethane, and 1, 1, 1, 2-tetrafluoroethane, a mixture of pentafluoroethane, 1, 1, 1, 2-tetrafluoroethane, and 1, 1, 1-trifluoroethane, an unsaturated hydrofluorocarbon, a hydrocarbon, and carbon dioxide.