Emulsion polymerization process with combination macroemulsion and
miniemulsion feed streams
    1.
    发明授权
    Emulsion polymerization process with combination macroemulsion and miniemulsion feed streams 失效
    乳液聚合工艺与组合的大乳液和微乳液进料流

    公开(公告)号:US6160049A

    公开(公告)日:2000-12-12

    申请号:US147203

    申请日:1998-10-28

    CPC分类号: C08F2/24

    摘要: A process for preparing an aqueous polymer dispersion by free-radically initiated polymerization of free-radically polymerizable compounds I with moderate solubility in water, whose disperse polymer particles contain not only compounds I but also compounds II with a very low solubility in water where a mixture consisting of a portion of the compounds I and consisting of the compounds II is used to produce an aqueous emulsion I with a droplet size .ltoreq.500 nm, and at least a portion of the aqueous emulsion I is supplied continuously to the polymerization vessel as a feed stream I, in the course of continuing free-radical polymerization, during which the continuous feed stream I is accompanied, at least some of the time, by a feed stream II consisting of another portion of the compounds I or of the aqueous emulsion II thereof with a droplet size .gtoreq.1000 nm.

    摘要翻译: PCT No.PCT / EP97 / 03397 371 1998年10月28日第 102(e)1998年10月28日PCT 1997年6月30日PCT公布。 公开号WO98 / 02466 日期1998年1月22日一种通过自由基引发聚合可自由基聚合的化合物I制备水性聚合物分散体的方法,该可自由基聚合的化合物I在水中具有适度的溶解度,其分散聚合物颗粒不仅含有化合物I,而且包含非常低的溶解度的化合物II 在其中使用由化合物I的一部分组成并且由化合物II组成的混合物的水中,以产生具有小滴尺寸为500nm的水性乳液I,并且连续供应至少一部分水性乳液I 作为进料流I作为进料流I,在连续自由基聚合的过程中,连续进料流I至少在一段时间内由由化合物I的另一部分组成的进料流II 或其水乳液II的液滴尺寸> 1000nm。

    Method for transporting polymer dispersions
    5.
    发明申请
    Method for transporting polymer dispersions 审中-公开
    运输聚合物分散体的方法

    公开(公告)号:US20050276159A1

    公开(公告)日:2005-12-15

    申请号:US11205068

    申请日:2005-08-17

    IPC分类号: F04D29/22 B01F5/10

    CPC分类号: F04D29/2233

    摘要: The invention relates to an apparatus for transporting polymer dispersions, said apparatus being capable of being driven by a drive and being designed as an impeller (28). It is possible for said impeller both to be surrounded by a housing and to protrude freely into the polymer dispersion contained in the reactor tank. A number of vanes (2) are mounted in the region of the hub (1) of the impeller (28) in such a way that pumping spaces (5, 25) on the front side (7) and rear side (8) of the impeller (28) are flowed through uniformly.

    摘要翻译: 本发明涉及一种用于输送聚合物分散体的装置,所述装置能够由驱动器驱动并被设计为叶轮(28)。 所述叶轮可以被壳体包围并且可以自由地突出到包含在反应器罐中的聚合物分散体中。 多个叶片(2)安装在叶轮(28)的轮毂(1)的区域中,使得在前侧(7)和后侧(8)上的泵送空间(5,25) 叶轮28均匀地流动。