Injection Stretch Blow Molded Articles and Random Copolymers For Use Therein
    302.
    发明申请
    Injection Stretch Blow Molded Articles and Random Copolymers For Use Therein 审中-公开
    注塑拉伸吹塑制品和随机共聚物用于其中

    公开(公告)号:US20150274864A1

    公开(公告)日:2015-10-01

    申请号:US14735329

    申请日:2015-06-10

    Abstract: A polymer composition adapted for use in injection stretch blow molding may include a metallocene random propylene-based copolymer in the absence of a clarifier. The metallocene random propylene-based copolymer may exhibit a melting point of from 105° C. to less than 175° C., a recrystallization temperature ranging from 85° C. to 100° C. as measured by DSC, a microtacticity ranging from 89% to 99%, a molecular weight (Mw) ranging from 170,000 to 210,000, and a melt flow rate of from about 1 dg/min. to about 40 dg/min. A method of forming an injection stretch blow molded (ISBM) article may include providing the metallocene random propylene-based copolymer, injection molding the metallocene random propylene-based copolymer in the absence of a clarifier into a preform, and stretch-blowing the preform into an article.

    Abstract translation: 适用于注射拉伸吹塑成型的聚合物组合物可以在不存在澄清剂的情况下包括茂金属无规丙烯基共聚物。 金属茂无规丙烯基共聚物可以显示出105℃至小于175℃的熔点,通过DSC测量的重结晶温度为85℃至100℃,微尺度范围为89 %至99%,分子量(Mw)为170,000至210,000,熔体流动速率为约1dg / min。 至约40dg / min。 形成注射拉伸吹塑(ISBM)制品的方法可以包括提供金属茂无规丙烯基共聚物,在没有澄清剂的情况下将金属茂无规丙烯基共聚物注射入预成型体中,并将​​预成型件拉伸吹塑 一篇文章。

    Depolymerization of Plastic Materials
    305.
    发明申请
    Depolymerization of Plastic Materials 审中-公开
    塑料材料的解聚

    公开(公告)号:US20150210611A1

    公开(公告)日:2015-07-30

    申请号:US14586521

    申请日:2014-12-30

    Abstract: A styrene monomer reclamation process and system is described. The styrene monomer reclamation process includes providing a waste plastic. The waste plastic includes styrenic polymers. The waste plastic is formed into polymer particles. At least a portion of the polymer particles are dissolved in a solvent to form a polymer stream. The dissolved polymer particles are depolymerized to form a styrene monomer stream.

    Abstract translation: 描述了苯乙烯单体回收过程和系统。 苯乙烯单体回收方法包括提供废塑料。 废塑料包括苯乙烯聚合物。 废塑料形成聚合物颗粒。 将至少一部分聚合物颗粒溶解在溶剂中以形成聚合物流。 溶解的聚合物颗粒被解聚以形成苯乙烯单体流。

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