公开(公告)号：US20210348079A1

公开(公告)日：2021-11-11

申请号：US17286222

申请日：2019-10-08

Applicant: BASF SE

Inventor： Ivette GARCIA CASTRO ,  Wolfgang GRABARSE ,  Jan STRITTMATTER ,  Markus SCHERER ,  Karolin MONZ ,  Rene KOSCHABEK

IPC: C10M107/28 ,  C10M107/10 ,  C08F210/14 ,  C08F220/18 ,  C08F222/14

Abstract: Lubricants with a terpolymer made of diester, olefin and acrylate The invention relates to a lubricant comprising a terpolymer which comprises in polymerized forma diester selected from di(C4-C22 alkyl)ester of maleic acid, fumaric acid, 2-methylmaleic acid, 2,3-dimethylmaleic acid, 2-methylfumaric acid, 2,3-dimethylfumaric acid, or mixtures thereof, an olefin selected from C6-C40 alky-1-ene, and an acrylate selected from C4-C40 alkyl (meth)acrylate. The invention further relates to the terpolymer, a process for preparing the terpolymer comprising the step of polymerizing the diester, the olefin, and the acrylate; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the terpolymer.

公开(公告)号：US20220064563A1

公开(公告)日：2022-03-03

申请号：US17414624

申请日：2019-12-18

Applicant: BASF SE

Inventor： Qinggao MA ,  Rene KOSCHABEK ,  Philippe RABBAT ,  Henrik HEINEMANN ,  Karolin MONZ ,  Frank RITTIG ,  Nawid KASHANI ,  Markus SCHERER

IPC: C10M169/04 ,  C10M107/00 ,  C10M145/32

Abstract: The presently claimed invention relates to a gear oil composition having a kinematic viscosity at 40° C. in the range of ≥68 to ≤1000 cSt when measured in accordance with ASTM D445. The gear oil composition is useful as a lubricant in a gear box, especially in a wind turbine gear box.