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    A MIDDLE-PRESSURE POLYMERIZATION PROCESS FOR LIQUID ETHYLENE COPOLYMERS
    1.
    发明申请
    A MIDDLE-PRESSURE POLYMERIZATION PROCESS FOR LIQUID ETHYLENE COPOLYMERS 有权

    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.

    COMPOSITIONS AND THEIR APPLICATIONS
    8.
    发明申请
    COMPOSITIONS AND THEIR APPLICATIONS 有权

    公开(公告)号：US20250011689A1

    公开(公告)日：2025-01-09

    申请号：US18709646

    申请日：2022-12-08

    Applicant: BASF SE

    Inventor： Ivette GARCIA CASTRO ,  Yannick MATT ,  Stephan HUEFFER ,  Elena WOLF

    IPC: C11D3/37 ,  C08G73/02 ,  C11D3/386 ,  C11D11/00

    Abstract: Disclosed herein are compositions including (A) at least one polymer including (a) a core that bears one to 3 moieties of the general formula (I), where Z are different or the same and selected from C5-C20-alkylene where in the C5-C20-alkylene at least one C-atom is replaced by an N-atom that bears a polyalkylene chain and where the C-atoms in the C5-C20-alkylene may be non-substituted or substituted with one or more O—C1-C4- alkyl groups, A1 are different or the same and selected from C1-C12-alkylene, C6-arylene, and C3-C12-cycloalkylene where C1-C12-alkylene and C3-C12-cycloalkylene may be non-substituted or substituted with one or more O—C1-C4-alkyl groups or OH groups and wherein C3-C12-cycloalkylene may bear one to three methyl groups, or based on citric acid, X1 is selected from hydrogen, methyl, ethyl and combinations of at least two thereof, and n is in a range of from 1 to 100, and (b) polyalkylene oxide chains.

    LUBRICANTS WITH A TERPOLYMER MADE OF DIESTER, OLEFIN AND ACRYLATE
    10.
    发明申请
    LUBRICANTS WITH A TERPOLYMER MADE OF DIESTER, OLEFIN AND ACRYLATE 有权

    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.

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