发明名称 |
Lubricating oil composition |
摘要 |
A lubricating oil composition comprising (A) an ethylene/α-olefin copolymer satisfying all of the following requirements (A-1) to (A-3): (A-1) an ethylene structural unit content of 30 to 70% by mol, (A-2) a kinematic viscosity at 100° C. of 20 to 3000 mm2/s, and (A-3) Mw/Mn as measured by GPC of 1 to 2.5, (F) a sulfur-containing compound in which at least one hydrocarbon group adjacent to sulfur is a secondary or tertiary hydrocarbon group, and as an optional component, (G) an α-olefin polymer having 3 to 6 carbon atoms, and having a kinematic viscosity at 40° C. of 450 to 51,000 mm2/s, a sulfur content of 0.1 to 5 parts by weight, and a component (G) content of 0 to 15 parts by weight. The lubricating oil composition is suitable particularly for gear oil and the like. |
申请公布号 |
US9534188(B2) |
申请公布日期 |
2017.01.03 |
申请号 |
US201314391319 |
申请日期 |
2013.04.03 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
Kaneshige Ryousuke;Abe Shota |
分类号 |
C10M161/00;C10M169/04;C10N40/04 |
主分类号 |
C10M161/00 |
代理机构 |
Foley & Lardner LLP |
代理人 |
Foley & Lardner LLP |
主权项 |
1. A lubricating oil composition comprising
(A) an ethylene/α-olefin copolymer satisfying all of the following requirements (A-1) to (A-3):
(A-1) an ethylene structural unit content is 30 to 70% by mol,(A-2) a kinematic viscosity at 100° C. is 20 to 3000 mm2/s, and(A-3) Mw/Mn as measured by GPC is 1 to 2.5, (F) a sulfur-containing compound in which at least one hydrocarbon group adjacent to sulfur is a secondary or tertiary hydrocarbon group, and as an optional component, (G) an α-olefin polymer having 3 to 6 carbon atoms, and having a kinematic viscosity at 40° C. of 450 to 51,000 mm2/s, a sulfur content of 0.1 to 5 parts by weight, and a component (G) content of 0 to 15 parts by weight, with the proviso that the total amount of the lubricating oil composition is 100 parts by weight. |
地址 |
Tokyo JP |