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    • 1. 发明申请
    • PROCESS FOR PRODUCING HIGH MELT FLOW POLYMERS
    • 生产高熔体流动聚合物的方法
    • WO0172873A3
    • 2002-02-28
    • PCT/US0109838
    • 2001-03-28
    • UNION CARBIDE CHEM PLASTICAVGOUSTI MARIOSKHARAZI ALEX
    • AVGOUSTI MARIOSKHARAZI ALEX
    • C08F8/50C08F110/06C08J3/12C08J3/20C08K5/14C08L23/00C08L23/02
    • C08J3/203C08F8/50C08F110/06C08F2810/10C08J2323/02C08F2500/12
    • Disclosed is a process for making polyolefin pellet products that contain at least one unreacted free radical generator which, when heated, undergo chemical degradation producing a low viscosity polymer. The process includes contacting the polyolefin pellet with the at least one free radical generator to coat the pellet, and contacting the coated pellets and at least one unreacted free radical generator at an elevated temperature and for a period of time sufficient for the free radical initiator to soak into the interior of the pellets. The process of the invention enables the production of polyolefin pellets having any desired amount of free radical generator and therefore, production of a desired viscosity, and improves the processability of the polyolefin pellet at customer fabrication facilities to thereby provide superior quality final articles.
    • 公开了一种制备含有至少一种未反应的自由基发生剂的聚烯烃颗粒产品的方法,当加热时,其经历化学降解,产生低粘度聚合物。 该方法包括使聚烯烃颗粒与至少一种自由基发生剂接触以包覆颗粒,并使涂覆的颗粒和至少一种未反应的自由基发生剂在升高的温度下接触并持续一段时间足以使自由基引发剂 浸泡在颗粒的内部。 本发明的方法能够生产具有任何所需量的自由基发生剂的聚烯烃颗粒,因此产生所需的粘度,并提高客户制造设备处的聚烯烃颗粒的加工性能,从而提供优质的最终制品。