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公开(公告)号：US20180044607A1
公开(公告)日：2018-02-15
申请号：US15554341
申请日：2016-02-12
发明人： Akira Tada , Ken Sawada
IPC分类号： C10M169/04 , C09K5/04 , C10M129/16 , C10M171/00 , C10M105/38
CPC分类号： C10M169/04 , C09K5/04 , C09K5/045 , C09K2205/11 , C09K2205/126 , C10M105/38 , C10M129/16 , C10M171/008 , C10M2207/2835 , C10N2220/302 , C10N2230/06 , C10N2240/30
摘要： The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant.
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公开(公告)号：US10323208B2
公开(公告)日：2019-06-18
申请号：US15522670
申请日：2015-10-22
IPC分类号： C10M171/00 , C09K5/04 , C11C3/00 , C08K5/053 , C08K5/09
摘要： The present invention provides a refrigerating machine oil containing an ester base oil obtained from pentaerythritol and mixed fatty acids of a fatty acid having 8 carbon atoms and a fatty acid having 9 carbon atoms, wherein a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, of the ester base oil is 1.06 to 1.20, and used with a mildly flammable hydrofluorocarbon refrigerant.
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公开(公告)号：US10023823B2
公开(公告)日：2018-07-17
申请号：US15516150
申请日：2015-09-24
IPC分类号： C09K5/04 , C10M105/40
摘要： The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less, wherein the refrigerating machine oil is used with a refrigerant comprising 15% by mass or more of difluoromethane, 15% by mass or more of pentafluoroethane, 15% by mass or more of 2,3,3,3-tetrafluoropropene and 15% by mass or more of 1,1,1,2-tetrafluoroethane based on the total amount of the refrigerant.
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公开(公告)号：US20180265801A1
公开(公告)日：2018-09-20
申请号：US15985029
申请日：2018-05-21
发明人： Hitoshi Takahashi , Ken Sawada , Akira Tada , Souichirou Konno
IPC分类号： C10M171/00 , C09K5/04 , C08L71/02 , C10M107/34 , C10N40/30
CPC分类号： C10M171/008 , C08L71/02 , C09K5/045 , C09K2205/126 , C10M107/34 , C10M2209/1033 , C10M2209/1045 , C10M2209/1055 , C10M2209/1065 , C10M2209/1075 , C10M2209/1085 , C10N2040/30 , C10N2220/021 , C10N2220/302 , C10N2230/08 , C10N2240/30
摘要： The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2 (1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.
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公开(公告)号：US10005981B2
公开(公告)日：2018-06-26
申请号：US15025855
申请日：2014-09-30
发明人： Hitoshi Takahashi , Ken Sawada , Akira Tada , Souichirou Konno
IPC分类号： C09K5/04 , C10M171/00 , C08L71/02 , C10M107/34 , C10N40/30
CPC分类号： C10M171/008 , C08L71/02 , C09K5/045 , C09K2205/126 , C10M107/34 , C10M2209/1033 , C10M2209/1045 , C10M2209/1055 , C10M2209/1065 , C10M2209/1075 , C10M2209/1085 , C10N2040/30 , C10N2220/021 , C10N2220/302 , C10N2230/08 , C10N2240/30
摘要： The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2 (1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.
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