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US08193135B2 Ethylene-propylene copolymers suitable for the modification of lubricating oils and process for the preparation thereof 有权
适用于润滑油改性的乙烯 - 丙烯共聚物及其制备方法

  • Patent Title: Ethylene-propylene copolymers suitable for the modification of lubricating oils and process for the preparation thereof
  • Patent Title (中): 适用于润滑油改性的乙烯 - 丙烯共聚物及其制备方法
  • Application No.: US12162703
    Application Date: 2007-02-12
  • Publication No.: US08193135B2
    Publication Date: 2012-06-05
  • Inventor: Tiziano Tanaglia
  • Applicant: Tiziano Tanaglia
  • Applicant Address: IT San Donato Milanese
  • Assignee: Polimeri Europa S.p.A.
  • Current Assignee: Polimeri Europa S.p.A.
  • Current Assignee Address: IT San Donato Milanese
  • Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
  • Priority: ITMI06A0286 20060216
  • International Application: PCT/EP2007/001428 WO 20070212
  • International Announcement: WO2007/093446 WO 20070823
  • Main IPC: C10M143/00
  • IPC: C10M143/00
Ethylene-propylene copolymers suitable for the modification of lubricating oils and process for the preparation thereof
Abstract:
Process for the preparation of viscosity index improver (V.I.I.) additives of lubricating oils which comprises a mixing treatment under high shear conditions of a composition comprising: (i) one or more EP(D)M polymers (ii) one or more polyvinylarene/conjugated hydrogenated polydiene/polyvinylarene block copolymers; and (iii) lubricating oil, (ii) being present in a concentration of 1.5 to 20% by weight whereas (iii) is present in a concentration ranging from 1.5 to 45% by weight.
Abstract(Chinese):

制备粘度指数改进剂（VII）的润滑油添加剂的方法，其包括在高剪切条件下混合处理组合物，所述组合物包含：（i）一种或多种EP（D）M聚合物（ii）一种或多种聚乙烯基芳烃/共轭 氢化聚二烯/聚乙烯基芳烃嵌段共聚物; 和（iii）润滑油，（ii）以1.5至20重量％的浓度存在，而（iii）以1.5至45重量％的浓度存在。

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