Storage and dilution of stable aqueous dispersions
    15.
    发明授权
    Storage and dilution of stable aqueous dispersions 失效
    稳定的水性分散体的储存和稀释

    公开(公告)号:US6074986A

    公开(公告)日:2000-06-13

    申请号:US615326

    申请日:1996-08-02

    CPC分类号: B01F17/00 A01N25/04 A01N25/28

    摘要: A formulation e.g., a pesticidal formulation in the form of a dispersion comprising a continuous aqueous phase, and a discontinuous phase comprising a non-aaueous material capable of transport through the aqueous phase to cause Ostwald ripening of the dispersion, wherein there is contained within the discontinuous phase a pesticidal material, which may or may not be the said non-aqueous material,wherein the discontinuous phase comprises a stabiliser in an amount sufficient to depress migration of the non-aqueous material through the aqueous phase, and thereby diminish or prevent Ostwald ripening of the dispersion, characterised in that the stabiliser has a molecular weight of not more than 10,000, and is soluble in the discontinuous phase, but insoluble in and not transportable through the aqueous phase. The production of the formulation can be carried out in a metered in-line mixing plant, since the thermodynamics of the mixing process is such that the particle size tends to a predictable value.

    摘要翻译: PCT No.PCT / US94 / 10416 Sec。 371日期:1996年8月2日 102(e)日期1996年8月2日PCT 1994年9月14日PCT公布。 出版物WO95 / 07614 日期1995年3月23日一种制剂,例如包含连续水相的分散体形式的杀虫剂制剂,以及包含能够通过水相运输以引起Ostwald熟化分散体的非无色材料的不连续相,其中 在不连续相中包含农药材料,其可以是或不是所述非水性材料,其中不连续相包含足以抑制非水性材料通过水相的迁移的量的稳定剂,以及 从而减少或阻止分散体的Ostwald熟化,其特征在于稳定剂的分子量不超过10,000,并且可溶于不连续相,但不溶于水相并且不能通过水相运输。 制剂的制备可以在计量的在线混合装置中进行,因为混合过程的热力学使得粒度趋于可预测的值。

    Microencapsulation process and product
    17.
    发明授权
    Microencapsulation process and product 失效
    微胶囊化方法和产品

    公开(公告)号:US5925464A

    公开(公告)日:1999-07-20

    申请号:US875133

    申请日:1997-08-08

    IPC分类号: B01J13/16

    摘要: Microencapsulated compositions, useful, for example, as pesticidal formulations, were prepared a process in which the microcapsules containing the encapsulated material are formed in an interfacial polycondensation reaction carried out in the presence of one polyvinylalcohol, a different polyvinylalcohol is added, and the resulting mixture is spray dried.

    摘要翻译: PCT No.PCT / US95 / 15543 Sec。 371日期:1997年8月8日 102(e)日期1997年8月8日PCT 1995年11月30日PCT PCT。 WO96 / 22159 PCT公开号 日期1996年7月25日制备了可用于例如农药制剂的微胶囊化组合物,其中含有包封材料的微胶囊在一种聚乙烯醇存在下进行界面缩聚反应形成,加入不同的聚乙烯醇 ,并将所得混合物喷雾干燥。