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.

公开(公告)号：US20230313063A1

公开(公告)日：2023-10-05

申请号：US18024303

申请日：2021-08-27

Applicant: BASF SE

Inventor： Frank RITTIG ,  Rene KOSCHABEK

IPC: C10M107/34

CPC classification number: C10M107/34 ,  C10N2020/04

Abstract: The invention relates to a use of a lubricant comprising a polyalkylene glycol for reducing white etching cracks in lubricated metal surfaces; and to a method for reducing white etching cracks in lubricated metal surfaces comprising the steps of lubricating the metal surfaces with a lubricant comprising the polyalkylene glycol.

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：US20250109351A1

公开(公告)日：2025-04-03

申请号：US18715771

申请日：2022-11-29

Applicant: BASF SE

Inventor： Ivette GARCIA CASTRO ,  Rene KOSCHABEK ,  Andrea MISSKE ,  Christoph FLECKENSTEIN

IPC: C10M145/14 ,  C08F220/18 ,  C10N30/02

Abstract: The present invention relates to a comb copolymer comprising in polymerized form a PIB macromonomer of the formula (I) and an acry late monomer of the formula (II). The invention further relates to a method of preparing the PIB macromonomer of the formula (I) where a polyisobutene phenol of the formula (III) is reacted with (meth)acrylic acid anhydride; and to a lubricant comprising a base oil, the comb copolymer, and further lubricant additives; and to a use of the comb copolymer for improving the viscosity index of a lubricating oil.

公开(公告)号：US20250034309A1

公开(公告)日：2025-01-30

申请号：US18715763

申请日：2022-11-29

Applicant: BASF SE

Inventor： Ivette GARCIA CASTRO ,  Rene KOSCHABEK ,  Andrea MISSKE ,  Christoph FLECKENSTEIN

IPC: C08F290/04 ,  C08F8/32 ,  C08F220/14 ,  C08F220/18 ,  C08F222/04 ,  C10M143/06 ,  C10M169/04 ,  C10N20/00 ,  C10N20/02 ,  C10N30/02

Abstract: The present invention relates to a comb copolymer comprising in polymerized form up to 40 wt % of a PIB macromonomer of the formula (I) and a hydrophobic monomer of the formula (II). The invention further relates to a method of preparing the PIB macromonomer of the formula (I) where a polyisobutene amine of the formula (IV) is reacted with (meth)acrylic acid anhydride; and to a lubricant comprising a base oil, the comb copolymer, and further lubricant additives; and to a use of the comb copolymer for improving the viscosity index of a lubricating oil.

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：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.