A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/α-olefin interpolymer. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block copolymer has a number of unique characteristics disclosed here. Such block copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc.
                            一种润滑剂组合物包括基础油和粘度改良剂,其中包括
乙烯/α-烯烃互聚物。
乙烯/α-烯烃互聚物是一种具有至少一个硬块和至少一个软块的嵌段共聚物。软块包含比硬块更多的共聚单体。该嵌段共聚物具有一系列独特特性,这些嵌段共聚物为改进低温性能和在制备发动机油、齿轮润滑剂和润滑脂等方面提供了灵活性的可能性。