Viscosity Modifier for Lubricating Oils, Additive Composition for Lubricating Oils, and Lubricating Oils Compositions
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    发明申请
    Viscosity Modifier for Lubricating Oils, Additive Composition for Lubricating Oils, and Lubricating Oils Compositions 有权
    润滑油粘度调节剂,润滑油添加剂组合物和润滑油组合物

    公开(公告)号:US20070249508A1

    公开(公告)日:2007-10-25

    申请号:US11662139

    申请日:2005-09-08

    IPC分类号: C10M143/06

    摘要: A viscosity modifier for lubricating oils or an additive composition for lubricating oils, which is excellent in oil-thickening properties and can provide lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures; and lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures. The viscosity modifier comprises an ethylene/α-olefin copolymer (B) which comprises (i) a structural unit derived from ethylene, (ii) a structural unit derived from an α-olefin having 3 to 19 carbon atoms, and (iii) a structural unit derived from a higher α-olefin having 4 to 20 carbon atoms whose carbon number is by one or more larger than that of the α-olefin having the unit (ii) which has the following properties of (1) and (2): (1) the contents of units (i), (ii) and (iii) are 25-49 mol %, 15-55 mol %, and 9-40 mol % respectively (with the proviso that the total of the units (i), (ii) , and (iii) is 100 mol %) and (2) the intrinsic viscosity [η] is 0.5 to 5.0 dl/g.

    摘要翻译: 一种用于润滑油的粘度调节剂或润滑油添加剂组合物,其油增稠性能优异,并且可以提供低温特性和低温处理性优异的润滑油组合物; 以及在低温下具有优异的低温特性和可操作性的润滑油组合物。 粘度调节剂包括乙烯/α-烯烃共聚物(B),其包含(i)衍生自乙烯的结构单元,(ii)衍生自具有3至19个碳原子的α-烯烃的结构单元,和(iii) 衍生自碳原子数为具有(1)和(2)具有以下性质的单元(ⅱ)的α-烯烃的碳原子数为1以上的碳原子数为4〜20个碳原子的高级α-烯烃的结构单元, :(1)单位(i),(ii)和(iii)的含量分别为25-49mol%,15-55mol%和9-40mol%(条件是单位( i),(ii)和(iii)为100摩尔%),(2)特性粘度η为0.5〜5.0dl / g。