申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0082574A2
公开(公告)日:1983-06-29
Lubricating oil additives having both dispersant and viscosity index-improving properties comprise a poly(polyalkenyl aromatic)nucleus, at least three hydrogenated conjugated diene homopolymer or copolymer arms linked to the nucleus, and at least one polymerized nitrogen containing polar compound arm linked to the nucleus.
同时具有分散剂和粘度指数改进特性的润滑油添加剂包括一个聚(多烯芳香族)核、至少三个与该核相连的氢化共轭二烯均聚物或共聚物臂,以及至少一个与该核相连的聚合含氮极性化合物臂。