A polyalkene dispersant comprised of low MW polyalkene having an average molecular weight range of about 300 to about 10,000 and an ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomer and methods of making the same are disclosed. The monomers are formed by reacting an acylating agent with amines having one or more primary or secondary amine to form a reaction product. Graft polyalkene dispersants comprising such monomers are formed by grafting the reaction product to the polyalkene backbone. Also described is lubricating oil comprising base oil and the dispersant polyalkene as described above.
本发明公开了一种聚烯烃分散剂,由平均分子量范围在约 300 至约 10,000 之间的低分子量聚烯烃和
乙烯不饱和、脂肪族或芳香族、含氮和氧的可接枝单体组成,并公开了制造这种分散剂的方法。这些单体是通过酰化剂与具有一个或多个
伯胺或仲胺的胺反应形成反应产物而形成的。通过将反应产物接枝到聚烯骨架上,可形成包含此类单体的接枝聚烯分散剂。还描述了由基础油和上述分散剂聚烯组成的润滑油。