The present invention provides a method for making a compatibilizer for a concentrated viscosity index improving polymer blend, which comprises polymerizing a mixture of (meth)acrylate monomers in the presence of a polyolefin polymer. The present invention also provides a concentrated blend of viscosity index improving polymers comprising a non-nitrogenous dispersant poly(meth)acrylate copolymer, a polyolefin copolymer, the compatibilizer and an oil-soluble diluent.
本发明提供了一种用于制造粘度指数改进聚合物浓缩混合物相容剂的方法,该方法包括在聚烯烃聚合物存在下聚合(甲基)
丙烯酸酯单体混合物。本发明还提供了一种粘度指数改进聚合物的浓缩混合物,其中包括一种非氮分散剂聚(甲基)
丙烯酸酯共聚物、一种聚烯烃共聚物、相容剂和一种油溶性稀释剂。