申请人:The Lubrizol Corporation
公开号:EP2351780A1
公开(公告)日:2011-08-03
The present invention relates to a copolymer comprising units derived from monomers (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with a primary alcohol branched at the β- or higher position, wherein the copolymer has a reduced specific viscosity of up to 0.08. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of controlling viscosity index by supplying to an oil of lubricating viscosity the copolymer with pendant groups. In addition, the copolymer of the present invention may be useful as a base oil replacement.
本发明涉及一种共聚物,该共聚物包含由单体(i)α-烯烃和(ii)乙烯基不饱和羧酸或其衍生物与在β-或更高位置支化的伯醇酯化而成的单元,其中该共聚物的比粘度降低至 0.08。本发明进一步提供了一种含有所述共聚物的润滑组合物。本发明进一步提供了一种控制粘度指数的方法和用途,即通过向具有润滑粘度的油品中提供带有悬垂基团的共聚物来控制粘度指数。此外,本发明的共聚物还可用作基础油的替代品。