公开(公告)号：US20220177799A1

公开(公告)日：2022-06-09

申请号：US17600797

申请日：2020-03-23

Applicant: BASF SE

Inventor： Ivette GARCIA CASTRO ,  Wolfgang GRABARSE ,  Jan STRITTMATTER ,  Rene KOSCHABEK ,  Robert RUPANER

IPC: C10M107/28 ,  C08F210/02 ,  C08F220/18

Abstract: The present invention relates to a middle-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 mix comprising the ethylene and the acrylate is polymerized at a pressure of 50 to 400 bar and in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to a 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.

公开(公告)号：US20140083654A1

公开(公告)日：2014-03-27

申请号：US14033702

申请日：2013-09-23

Applicant: BASF SE

Inventor： Ralf BUCH ,  Waldemar MUENCH ,  Robert RUPANER

IPC: F28F7/00

CPC classification number: F28F7/00 ,  B01J6/005 ,  F28D7/024 ,  F28D2021/0045

Abstract: An apparatus for heating or cooling a meltable material in a container, comprising a heating element (10) and a holding device (20), the heating element (10) being of a tubular design, with an inflow opening (11) and an outflow opening (12) for a heat transfer medium to flow through, and being fastened to the holding device (20) movably in at least one spatial direction as the main direction of movement, wherein the apparatus also has a stirrer (30) for mixing liquid material through, which is likewise arranged movably in the main direction of movement.

Abstract translation: 一种用于加热或冷却容器中的可熔化材料的装置，包括加热元件（10）和保持装置（20），所述加热元件（10）为管状设计，具有流入开口（11）和流出 用于传热介质的开口（12）流过，并且以至少一个空间方向作为主要运动方向可移动地紧固到保持装置（20），其中该装置还具有用于混合液体的搅拌器（30） 材料通道，其同样地在主要运动方向上可移动地布置。