公开(公告)号：US20210147759A1

公开(公告)日：2021-05-20

申请号：US16622474

申请日：2018-07-19

Applicant: BASF SE

Inventor： Szilard CSIHONY ,  Anja THOMAS ,  Kevin J. DESANTIS ,  Philippe RABBAT ,  Andrea MISSKE ,  Johannes BARTH ,  Meik RANFT ,  Peter MUELLER ,  Wolfgang GRABARSE ,  Christoph FLECKENSTEIN

IPC: C10M145/14 ,  C10M143/06 ,  C10M169/04

Abstract: The present invention is directed to the use of poly(polyisobutylenemethacrylate) as viscosity index improving component in lubricating oil compositions. The invention is further related to lubricating oil compositions comprising poly(polyisobutylenemethacrylate) with enhanced shear stability.

公开(公告)号：US20220298444A1

公开(公告)日：2022-09-22

申请号：US17619038

申请日：2020-06-09

Applicant: BASF SE

Inventor： Szilard CSIHONY ,  Rainer PAPP ,  Kevin J. DESANTIS ,  Meaghan C. MCGUIRE ,  Matthias FIES ,  Andrea MISSKE ,  Christoph FLEKENSTEIN

IPC: C10M145/14

Abstract: The present invention relates to a lubricant comprising a polyacrylate which contains a C13/15 acrylate in polymerized form, where the C13/15 acrylate comprises at least 70 wt % of linear and branched C13 and C15 alkyl (meth)acrylates. It further relates to the polyacrylate, to the C13/15 acrylate, to a method for preparing the polyacrylate by free-radical polymerization of the C13/15 acrylate, and to a method for preparing a lubricant by contacting the polyacrylate to a base oil.