Solid sheared polymer blends and process for their preparation
    6.
    发明授权
    Solid sheared polymer blends and process for their preparation 失效
    固体剪切聚合物共混物及其制备方法

    公开(公告)号:US5451630A

    公开(公告)日:1995-09-19

    申请号:US337159

    申请日:1994-11-09

    摘要: A blend and a process for producing that blend in which a high ethylene content ethylene-propylene polymer and a lower ethylene content ethylene-propylene polymer are subjected to simultaneous blending and shearing to reduce their molecular weights and molecular weight distribution and to yield a product that can be recovered as a solid using conventional plastic processing equipment. The sheared blend of polymers can function as a shear stable viscosity index improver with improved lower temperature properties.

    摘要翻译: 共混物和制备该共混物的方法,其中高乙烯含量的乙烯 - 丙烯聚合物和较低乙烯含量的乙烯 - 丙烯聚合物经受同时共混和剪切以降低其分子量和分子量分布并产生产物 可以使用常规塑料加工设备作为固体回收。 聚合物的剪切混合物可用作具有改进的较低温度性质的剪切稳定粘度指数改进剂。