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1.发明公开公开(公告)号：US20240043768A1
公开(公告)日：2024-02-08
申请号：US18257675
申请日：2021-12-17
IPC分类号： C10M145/14 , C08F293/00 , C10M169/04
CPC分类号： C10M145/14 , C08F293/005 , C10M169/041 , C10M2203/003 , C10M2209/084 , C10N2020/071
摘要： A method for the preparation of homo- and copolymers of alkyl (meth)acrylates having a low residual monomer content involves preparing a reaction mixture containing monomers, charging the reaction mixture, heating the reaction mixture, adding an additional monomer after initial monomer conversion, and optional further processing of the reaction mixture. The homo- and copolymers of alkyl (meth)acrylates obtained by this method as useful in lubricant applications.
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公开(公告)号：US11965140B2
公开(公告)日：2024-04-23
申请号：US17757031
申请日：2019-12-12
发明人： Stefan Karl Maier , Michael Neusius , Qi Xiao , Gabriela Fedor , Stefan Hilf , Frank-Olaf Mähling
IPC分类号： C10M107/28 , C08F20/16 , C10N20/04 , C10N40/04
CPC分类号： C10M107/28 , C08F20/16 , C10M2203/003 , C10M2209/0845 , C10N2020/04 , C10N2040/04
摘要： Low molecular weight polyalkyl acrylate polymers can be used as high viscosity base fluids. A corresponding method can be used for their preparation. Lubricant compositions may contain such low molecular weight polyalkyl acrylate polymers and the compositions may be used as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or hydraulic oils.
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公开(公告)号：US20230416634A1
公开(公告)日：2023-12-28
申请号：US18253279
申请日：2021-11-18
发明人： Thomas SCHIMMEL , Frank-Olaf Mähling , Lucas Voigt
IPC分类号： C10M171/00
CPC分类号： C10M171/008 , C10M2209/084 , C10N2020/02
摘要： Polyalkyl (meth)acrylates are useful in compressor oils. A method of increasing the energy efficiency of a compressor involves operating the compressor with a compressor oil containing a polyalkyl (meth)acrylate-based viscosity index improver.
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公开(公告)号：US20220372388A1
公开(公告)日：2022-11-24
申请号：US17757031
申请日：2019-12-12
发明人： Stefan Karl Maier , Michael Neusius , Qi Xiao , Gabriela Fedor , Stefan Hilf , Frank-Olaf Mähling
IPC分类号： C10M107/28 , C08F20/16
摘要： Low molecular weight polyalkyl acrylate polymers can be used as high viscosity base fluids. A corresponding method can be used for their preparation. Lubricant compositions may contain such low molecular weight polyalkyl acrylate polymers and the compositions may be used as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or hydraulic oils.
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