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    Polymer compositions having improved properties as viscosity index improvers and use thereof in lubricating oils
    1.
    发明授权
    Polymer compositions having improved properties as viscosity index improvers and use thereof in lubricating oils 有权
    聚合物组合物具有改进的粘度指数改进剂的性能及其在润滑油中的用途

    公开(公告)号：US09127151B2

    公开(公告)日：2015-09-08

    申请号：US13365678

    申请日：2012-02-03

    申请人： Phillip T. Matsunaga ,  Kirk A. Nass ,  Pritesh A. Patel ,  Rainer Kolb ,  Sudhin Datta

    发明人： Phillip T. Matsunaga ,  Kirk A. Nass ,  Pritesh A. Patel ,  Rainer Kolb ,  Sudhin Datta

    IPC分类号： C10M111/04 ,  C07F5/04 ,  C08L23/16 ,  C10M143/04

    CPC分类号： C08L23/16 ,  C10M143/04 ,  C10M2205/022 ,  C10N2220/021 ,  C10N2220/023 ,  C10N2230/02 ,  C10N2240/10 ,  C10M2205/028 ,  C10M2205/024 ,  C10M2205/026

    摘要： Polymer compositions for use as viscosity modifiers comprising at least two ethylene-based copolymer components are provided. The polymer composition comprises (a) a first ethylene-α-olefin copolymer and (b) a second ethylene-α-olefin copolymer. The first ethylene-α-olefin copolymer (a) has an ethylene content from about 60 to about 80 wt % and the second ethylene-α-olefin copolymer (b) has an ethylene content of less than about 60 wt %. The first ethylene-α-olefin copolymer (a) has a Melt Flow Rate Ratio (MFRR), defined as the ratio of the MFR measured at 230° C./21.6 kg and at 230° C./2.16 kg, of greater than 30 and optionally also has a Melt Flow Rate (MFR) of at least about 1.5 g/10 min, measured by ASTM D 1238 condition L (230° C./2.16 kg). The present disclosure is also directed to lubricant compositions comprising a lubricating basestock and a polymer composition of the present disclosure and is further directed to reducing gelation in the lubricant compositions.

    摘要翻译： 提供用作包含至少两种基于乙烯的共聚物组分的粘度调节剂的聚合物组合物。 聚合物组合物包含（a）第一乙烯-α-烯烃共聚物和（b）第二乙烯-α-烯烃共聚物。 第一乙烯-α-烯烃共聚物（a）的乙烯含量为约60至约80重量％，第二乙烯-α-烯烃共聚物（b）的乙烯含量小于约60重量％。 第一乙烯-α-烯烃共聚物（a）具有熔体流动速率比（MFRR），其定义为在230℃/ 21.6kg和230℃/ 2.16kg下测得的MFR的比值大于 30，并且任选地还具有通过ASTM D 1238条件L（230℃/ 2.16kg）测量的至少约1.5g / 10min的熔体流动速率（MFR）。 本公开还涉及包含润滑基料和本发明的聚合物组合物的润滑剂组合物，并进一步涉及减少润滑剂组合物中的凝胶化。

    POLYMER COMPOSITIONS HAVING IMPROVED PROPERTIES AS VISCOSITY INDEX IMPROVERS AND USE THEREOF IN LUBRICATING OILS
    2.
    发明申请
    POLYMER COMPOSITIONS HAVING IMPROVED PROPERTIES AS VISCOSITY INDEX IMPROVERS AND USE THEREOF IN LUBRICATING OILS 有权
    具有改进性能的聚合物组合物作为粘度指数改进和在润滑油中的应用

    公开(公告)号：US20130203640A1

    公开(公告)日：2013-08-08

    申请号：US13365678

    申请日：2012-02-03

    申请人： Phillip T. Matsunaga ,  Kirk A. Nass ,  Pritesh A. Patel ,  Rainer Kolb ,  Sudhin Datta

    发明人： Phillip T. Matsunaga ,  Kirk A. Nass ,  Pritesh A. Patel ,  Rainer Kolb ,  Sudhin Datta

    IPC分类号： C08L23/08 ,  C10M143/02 ,  C10M143/04 ,  C08L23/16

    CPC分类号： C08L23/16 ,  C10M143/04 ,  C10M2205/022 ,  C10N2220/021 ,  C10N2220/023 ,  C10N2230/02 ,  C10N2240/10 ,  C10M2205/028 ,  C10M2205/024 ,  C10M2205/026

    摘要： Polymer compositions for use as viscosity modifiers comprising at least two ethylene-based copolymer components are provided. The polymer composition comprises (a) a first ethylene-α-olefin copolymer and (b) a second ethylene-α-olefin copolymer. The first ethylene-α-olefin copolymer (a) has an ethylene content from about 60 to about 80 wt % and the second ethylene-α-olefin copolymer (b) has an ethylene content of less than about 60 wt %. The first ethylene-α-olefin copolymer (a) has a Melt Flow Rate Ratio (MFRR), defined as the ratio of the MFR measured at 230° C./21.6 kg and at 230° C./2.16 kg, of greater than 30 and optionally also has a Melt Flow Rate (MFR) of at least about 1.5 g/10 min, measured by ASTM D 1238 condition L (230° C./2.16 kg). The present disclosure is also directed to lubricant compositions comprising a lubricating basestock and a polymer composition of the present disclosure and is further directed to reducing gelation in the lubricant compositions.

    摘要翻译： 提供用作包含至少两种基于乙烯的共聚物组分的粘度调节剂的聚合物组合物。 聚合物组合物包含（a）第一乙烯-α-烯烃共聚物和（b）第二乙烯-α-烯烃共聚物。 第一乙烯-α-烯烃共聚物（a）的乙烯含量为约60至约80重量％，第二乙烯-α-烯烃共聚物（b）的乙烯含量小于约60重量％。 第一乙烯-α-烯烃共聚物（a）具有熔体流动速率比（MFRR），其定义为在230℃/ 21.6kg和230℃/ 2.16kg下测得的MFR的比例大于 30，并且任选地还具有通过ASTM D 1238条件L（230℃/ 2.16kg）测量的至少约1.5g / 10min的熔体流动速率（MFR）。 本公开还涉及包含润滑基料和本发明的聚合物组合物的润滑剂组合物，并进一步涉及减少润滑剂组合物中的凝胶化。

    Process for the Production of Polymeric Compositions Useful as Oil Modifiers
    3.
    发明申请
    Process for the Production of Polymeric Compositions Useful as Oil Modifiers 有权
    用作油改性剂的聚合组合物的生产方法

    公开(公告)号：US20130203641A1

    公开(公告)日：2013-08-08

    申请号：US13365698

    申请日：2012-02-03

    申请人： Rainer Kolb ,  Phillip T. Matsunaga ,  Periagaram S. Ravishankar ,  Lisa B. Stefaniak ,  Quintin Paul Ward Costin

    发明人： Rainer Kolb ,  Phillip T. Matsunaga ,  Periagaram S. Ravishankar ,  Lisa B. Stefaniak ,  Quintin Paul Ward Costin

    IPC分类号： C10M143/00

    CPC分类号： C10M143/00 ,  C08L23/0815 ,  C08L2308/00 ,  C08L2314/06 ,  C10M143/08 ,  C10M2205/022 ,  C10M2205/028 ,  C10M2205/22 ,  C10N2220/021 ,  C10N2220/033 ,  C10N2270/00 ,  C08L23/16

    摘要： Provided are processes for making polymer compositions, especially those with reduced or no gel formation in lubricating oils as identified by rheological and visual gel tests and which are useful as viscosity modifiers. The processes described herein aim to achieve this objective by adjusting the concentrations of the hydrogen feed(s) in the first and/or second polymerization reaction zones, preferably such that (a) the hydrogen feed concentration in the first polymerization reaction zone is 0.0-1.0 wt %, based on total weight of feed(s) of hydrogen, ethylene monomer, α-olefin comonomer, and solvent into the first polymerization reaction zone, and/or (b) the hydrogen feed concentration in the second polymerization reaction zone is 0.0-0.5 wt %, based on total weight of feed(s) of hydrogen, ethylene monomer, α-olefin comonomer, and solvent into the second polymerization reaction zone.

    摘要翻译： 提供了制备聚合物组合物的方法，特别是通过流变学和视觉凝胶测试鉴定的润滑油中形成凝胶或没有凝胶的那些，并且它们可用作粘度调节剂。 本文所述的方法旨在通过调节第一和/或第二聚合反应区中的氢气进料的浓度来实现该目的，优选使得（a）第一聚合反应区中的氢气进料浓度为0.0- 1.0重量％，基于氢，乙烯单体，α-烯烃共聚单体和溶剂的进料的总重量进入第一聚合反应区，和/或（b）第二聚合反应区中的氢气进料浓度为 0.0-5.5重量％，基于氢，乙烯单体，α-烯烃共聚单体和溶剂的进料的总重量进入第二聚合反应区。