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    • 28. 发明授权
    • Pressurized high temperature polymerization process and polymerization system used therein
    • 其中使用的加压高温聚合方法和聚合体系
    • US07585924B2
    • 2009-09-08
    • US10617270
    • 2003-07-10
    • Michael Charles Grady
    • Michael Charles Grady
    • C09D133/00
    • C08K5/0025C08F2/001C08F2/06C08F8/30C08F2800/20C08G18/6229C08G18/792C08L79/00C08L2312/00C09D133/04C09D133/14C08L33/06C08L2666/20C08F2220/1866
    • The present invention is directed to a novel high temperature polymerization process operating at high pressures for producing a polymer. The process includes conveying hybrid reactor mixtures, which include one or more hybrid reactor monomers and one or more hybrid reactor initiators to one or more hybrid reactors. The hybrid reactors are maintained at effective hybrid polymerization temperatures and sub-reflux polymerization gage pressures to cause polymerization of a portion of the hybrid reactor monomers into the polymer. The process further includes conveying hybrid reactor contents from the hybrid reactors to one or more batch reactors maintained at effective batch polymerization temperatures and reflux polymerization pressures to cause polymerization of a remaining portion of the hybrid reactor monomers into the polymer. The hybrid reactors are smaller in volume than the batch reactors. By utilizing the hybrid/batch reactor combination, the process of the present invention can be operated under safe working conditions. The process of the present invention also allows control of the polydispersity and molecular weight of the resulting polymers. As a result, the polymers made therefrom can be used as binders in compositions, such as coating compositions used in the automotive refinish and OEM applications having desired coating properties. The present invention is also directed to a polymerization system used in the process of the present invention.
    • 本发明涉及在高压下操作以生产聚合物的新型高温聚合方法。 该方法包括将混合反应器混合物输送到一个或多个混合反应器,混合反应器混合物包括一个或多个混合反应器单体和一个或多个混合反应器引发 将混合反应器保持在有效的杂化聚合温度和亚回流聚合计压力下,以使一部分混合反应器单体聚合成聚合物。 该方法还包括将混合反应器内容物从混合反应器输送到保持在有效分批聚合温度和回流聚合压力下的一个或多个间歇反应器,以使剩余部分的混合反应器单体聚合成聚合物。 混合反应器的体积比间歇反应器小。 通过利用混合/间歇反应器组合,本发明的方法可以在安全的工作条件下操作。 本发明的方法还可以控制得到的聚合物的多分散性和分子量。 结果,由其制成的聚合物可用作组合物中的粘合剂,例如用于汽车修补漆的涂料组合物和具有所需涂料性能的OEM应用。 本发明还涉及用于本发明方法的聚合体系。