Block polymers and their preparation
    3.
    发明授权
    Block polymers and their preparation 失效
    嵌段聚合物及其制备方法

    公开(公告)号:US4010226A

    公开(公告)日:1977-03-01

    申请号:US596774

    申请日:1975-07-17

    IPC分类号: C08F297/04 C08L9/06

    CPC分类号: C08F297/044

    摘要: An improved process for the preparation of branched polymers is provided wherein the individual branches may be selected at will comprising the formation of an anionic polymer of a polymerizable monomer, coupling with a polyvinyl aromatic hydrocarbon and block polymerizing this coupled product with an anionically active polymerizable monomer.

    摘要翻译: 提供了制备支化聚合物的改进方法,其中可以随意选择各个分支,包括形成可聚合单体的阴离子聚合物,与聚乙烯基芳族烃偶联,并将该偶联产物与阴离子活性可聚合单体 。

    Process for pelletizing ultra high melt flow crystalline polymers and
products therefrom
    4.
    发明授权
    Process for pelletizing ultra high melt flow crystalline polymers and products therefrom 失效
    用于从其中造粒超高熔点流动结晶聚合物和产品的方法

    公开(公告)号:US5340509A

    公开(公告)日:1994-08-23

    申请号:US906328

    申请日:1992-06-30

    IPC分类号: B29B9/10 B29B13/02

    CPC分类号: B29B9/10 B29B13/022

    摘要: Disclosed is a process for pelletizing ultra high melt flow crystalline polymers to produce dust-free, uniform ultra high melt flow crystalline pellet products. The process comprises feeding polymer into melting/mixing means, resulting in molten polymer. The molten polymer is transferred to a droplet forming means that produces droplets of the molten polymer. The droplets collect on a continuously moving cooling conveyer and solidify to form dust-free, uniform ultra high melt flow crystalline polymer pellets. Further, the process produces ultra high melt flow crystalline polymer pellets which are uniformly compounded.

    摘要翻译: 公开了一种用于造粒超高熔点流动结晶聚合物以产生无尘,均匀的超高熔体流动的结晶颗粒产品的方法。 该方法包括将聚合物进料到熔融/混合装置中,产生熔融聚合物。 将熔融的聚合物转移到产生熔融聚合物的液滴的液滴形成装置。 液滴收集在连续移动的冷却输送机上并固化,形成无尘,均匀的超高熔点流动结晶聚合物颗粒。 此外,该方法产生均匀混合的超高熔体流动的结晶聚合物颗粒。