| 摘要 |
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. |
