HIGHLY FUNCTIONAL ADDITIVE FOR POLYMERIZATION AND METHOD FOR PREPARING VINYL CHLORIDE SEEDS USING THE SAME
    3.
    发明申请
    HIGHLY FUNCTIONAL ADDITIVE FOR POLYMERIZATION AND METHOD FOR PREPARING VINYL CHLORIDE SEEDS USING THE SAME 有权
    用于聚合的高功能添加剂和使用其制备氯乙烯种子的方法

    公开(公告)号:US20140200309A1

    公开(公告)日:2014-07-17

    申请号:US14178044

    申请日:2014-02-11

    Applicant: LG CHEM, LTD.

    Abstract: Disclosed is a method for preparing a vinyl chloride seed, comprising adding a vinyl chloride monomer, an emulsifier and a polymerization initiator to an aqueous medium, homogenizing droplets using a homogenizer pump, and polymerizing the homogenized droplets. The method provides a more stable latex by minimizing residual monomers by performing polymerization after adding a higher aliphatic alcohol serving as a monomer absorption enhancer and then performing homogenization, and additionally, improves productivity and reduces amount of scale generated by increasing the efficiency of monomer consumption during polymerization. Further, by applying the vinyl chloride-based seed to seed emulsion polymerization of vinyl chloride resins, polymer reactivity is improved, the reaction time of the seed emulsion polymerization is effectively reduced, the sizes of small and large particles are controlled and the particle diameter of the vinyl chloride resin is thus controlled.

    Abstract translation: 公开了一种制备氯乙烯种子的方法,其包括向水性介质中加入氯乙烯单体,乳化剂和聚合引发剂,使用均化器泵均化液滴,并使均匀化的液滴聚合。 该方法通过在加入用作单体吸收增强剂的高级脂族醇之后进行聚合,然后进行均化,使残留单体最小化,从而提供更稳定的胶乳,并且另外通过提高单体消耗的效率来提高生产率和降低生产量 聚合。 此外,通过将氯乙烯类种子应用于氯乙烯树脂的种子乳液聚合,提高聚合物的反应性,有效降低种子乳液聚合的反应时间,控制小粒径和大粒径的粒径, 因此控制氯乙烯树脂。

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