公开(公告)号：US20210246395A1

公开(公告)日：2021-08-12

申请号：US16981569

申请日：2019-03-14

Applicant: BASF SE

Inventor： Martin WENDKER ,  Ivette GARCIA CASTRO ,  Jan STRITTMATTER ,  Karolin GEYER ,  Wolfgang GRABARSE ,  Markus SCHERER ,  Rene KOSCHABEK

IPC: C10M143/02 ,  C10M145/14 ,  C10M169/04

Abstract: The present invention relates to a lubricant comprising a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate. It further relates to the liquid ethylene copolymer; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.

公开(公告)号：US20210095061A1

公开(公告)日：2021-04-01

申请号：US16981659

申请日：2019-03-14

Applicant: BASF SE

Inventor： Martin WENDKER ,  Ivette GARCIA CASTRO ,  Jan STRITTMATTER ,  Karolin GEYER ,  Wolfgang GRABARSE ,  Markus SCHERER ,  Rene KOSCHABEK

IPC: C08F210/02 ,  C08L91/00

Abstract: The present invention relates to a continuous high-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate, where a monomer feed comprising the ethylene and the acrylate is polymerized in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to the liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.