公开(公告)号：US20200032160A1

公开(公告)日：2020-01-30

申请号：US16603707

申请日：2018-04-13

申请人： JXTG NIPPON OIL & ENERGY CORPORATION

发明人： Hitoshi KOMATSUBARA ,  Shingo MATSUKI ,  Toshitaka NAKAMURA ,  Hiroyuki CHINEN ,  Yuji MATSUI

IPC分类号： C10M169/04

摘要： A lubricating oil composition including: a lubricating base oil; (A) a dispersant poly(meth)acrylate compound having a weight average molecular weight of 30,000 to 200,000 in an amount of 1 to 10 mass % on the basis of the total mass of the composition; and (B) a non-dispersant poly(meth)acrylate compound having a weight average molecular weight of 15,000 to 100,000 in an amount of no more than 15 mass % on the basis of the total mass of the composition, wherein the ratio MA/MB of the amount MA of the component (A) to the amount MB of the component (B) is 0.05 to 1; and the ratio MwB/MwA of the weight average molecular weight MwB of the component (B) to the weight average molecular weight MwA of the component (A) is 0.05 to 2.

公开(公告)号：US20180112150A1

公开(公告)日：2018-04-26

申请号：US15553375

申请日：2016-02-25

申请人： JXTG NIPPON OIL & ENERGY CORPORATION

发明人： Hitoshi KOMATSUBARA

IPC分类号： C10M169/04 ,  C10M101/00 ,  C10M105/04 ,  C10M145/22 ,  C10M145/14 ,  C10M165/00

摘要： Disclosed is a lubricating oil composition for gear oil, comprising a lubricating base oil having a kinematic viscosity at 40° C. of 140 to 350 mm2/s, a copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond, a performance additive containing phosphorus and sulfur, and a poly(meth)acrylate pour-point depressant.

公开(公告)号：US20200032159A1

公开(公告)日：2020-01-30

申请号：US16591285

申请日：2019-10-02

申请人： JXTG Nippon Oil & Energy Corporation

发明人： Hitoshi KOMATSUBARA ,  Noriko AYAME ,  Mona ARIYAMA

IPC分类号： C10M169/04 ,  C10M101/02 ,  C10M105/32 ,  C10M107/02 ,  C10M133/44 ,  C10M135/18

摘要： Disclosed is a lubricating oil composition comprising: a lubricating base oil comprising 0.5% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and having a kinematic viscosity at 40° C. of 18 to 28 mm2/s; and an organic molybdenum compound in an amount of 100 to 1000 mass ppm in terms of the molybdenum element based on the total amount of the lubricating oil composition, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 50 mm2/s or less.

公开(公告)号：US20180312776A1

公开(公告)日：2018-11-01

申请号：US15770661

申请日：2016-10-28

申请人： JXTG NIPPON OIL & ENERGY CORPORATION

发明人： Mona ARIYAMA ,  Hitoshi KOMATSUBARA ,  Takama YASUDA

IPC分类号： C10M161/00 ,  C10M145/14 ,  C10M135/20 ,  C10M135/36 ,  C10M133/04 ,  C10M133/16

CPC分类号： C10M161/00 ,  C10M133/04 ,  C10M133/16 ,  C10M135/20 ,  C10M135/36 ,  C10M145/14 ,  C10M149/02

摘要： The present invention provides a lubricating oil composition comprising: a lubricating base oil; 1.0% by mass or more and 15.0% by mass or less of a dispersant poly(meth)acrylate compound having the weight average molecular weight of 20000 or more and 200000 or less; 0.05% by mass or more and 6.0% by mass or less of a thiadiazole compound; 1.5% by mass or more and 4.0% by mass or less of a polysulfide compound; and 0.2% by mass or more and 1.5% by mass or less of a friction modifier, based on the total amount of the lubricating oil composition, wherein the mass ratio of the polysulfide compound content to the thiadiazole compound content (polysulfide compound/thiadiazole compound) is 0.4 or more and 50 or less, and the kinematic viscosity at 100° C. of the lubricating oil composition is 7.0 mm2/s or more and 35.0 mm2/s or less.

公开(公告)号：US20180087002A1

公开(公告)日：2018-03-29

申请号：US15707014

申请日：2017-09-18

申请人： JXTG NIPPON OIL & ENERGY CORPORATION

发明人： Hitoshi KOMATSUBARA ,  Shingo MATSUKI ,  Toshitaka NAKAMURA ,  Hiroyuki CHINEN ,  Yuji MATSUI

IPC分类号： C10M169/04 ,  C10M101/02 ,  C10M139/00 ,  C10M125/24 ,  C10M145/14 ,  C10M135/36 ,  C10M161/00

CPC分类号： C10M169/044 ,  C10M101/025 ,  C10M125/24 ,  C10M135/36 ,  C10M139/00 ,  C10M145/14 ,  C10M161/00 ,  C10M2201/085 ,  C10M2203/1025 ,  C10M2205/0285 ,  C10M2205/143 ,  C10M2207/144 ,  C10M2207/262 ,  C10M2209/084 ,  C10M2215/04 ,  C10M2215/064 ,  C10M2215/08 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2215/30 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2219/106 ,  C10M2223/049 ,  C10M2223/06 ,  C10M2227/06 ,  C10M2227/061 ,  C10M2229/02 ,  C10N2210/02 ,  C10N2220/021 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/56 ,  C10N2230/68 ,  C10N2240/045 ,  C10N2220/022 ,  C10N2260/14

摘要： A lubricating oil composition for a continuously variable transmission including: (A) a lubricant base oil; (B) a borate ester compound in an amount of 25 to 500 mass ppm in terms of boron on the basis of the total mass of the composition; (C) phosphoric acid in an amount of 100 to 750 mass ppm in terms of phosphorus on the basis of the total mass of the composition; (D) a poly(meth)acrylate having a weight average molecular weight of no more than 100,000, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of no more than 25 mm2/s.