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    • 29. 发明公开
    • VERFAHREN ZUR HERSTELLUNG W[SSRIGER WIRKSTOFFZUSAMMENSETZUNGEN VON IN WASSER SCHWER L\SLICHEN WIRKSTOFFEN
    • VERFAHREN ZUR HERSTELLUNG W [SSRIGER WIRKSTOFFZUSAMMENSETZUNGEN VON IN WASSER SCHWER L \ SLICHEN WIRKSTOFFEN
    • EP1776010A2
    • 2007-04-25
    • EP05770777.0
    • 2005-08-03
    • BASF AKTIENGESELLSCHAFT
    • AMRHEIN, PatrickSCHÖPKE, HolgerKLEIST, GunnarKLUGE, Michael
    • A01N25/04A01N25/28A01N25/26A01N43/653A01N43/36A01N53/00B27K5/00
    • A01N43/36A01N25/04A01N25/26A01N25/28A01N43/653A01N53/00B27K3/007B27K3/15C08L33/08C08L35/02C08L97/02A01N2300/00
    • The invention relates to a method for producing aqueous active substance compositions of active substances that are hardly soluble in water, especially of active substances for use in the protection of plants and materials. The invention also relates to the active substance compositions obtained according to the inventive method and to their use in the control of harmful organisms in the protection of plants and materials. The inventive method comprises the following steps: a) providing an aqueous suspension of solid active substance particles of at least one active substance having a water solubility of not more than 5 g/l at 25 °C/1013 mbar and comprising at least one surface-active substance for stabilizing the active substance particles, whereby the active substance particles in the suspension have an average particle size, determined by dynamic light scattering, of not more than 1200 nm; b) emulsion polymerization of a first monomer composition M1 in the aqueous suspension of the active substance, whereby the monomer composition M1 comprises at least 95 % by weight, based on its total weight, of at least one neutral, monoethylenically unsaturated monomer M1.1 having a water solubility of not more than 30 g/l at 25 °C/1013 mbar, thereby obtaining an aqueous dispersion of polymer/active substance particles; and c) emulsion polymerization of a second monomer composition M2 in an aqueous dispersion of the polymer/active substance particles obtained in step b), whereby the monomer composition M2 comprises at least 60 % by weight, based on its total weight, of at least one neutral, monoethylenically unsaturated monomer M2.1 having a water solubility of not more than 30 g/l at 25 °C/1013 mbar.
    • 本发明涉及用于生产难溶于水的活性物质,特别是用于保护植物和材料的活性物质的含水活性物质组合物的方法。 本发明还涉及根据本发明方法获得的活性物质组合物及其在防治植物和材料中的有害生物中的用途。 本发明的方法包括以下步骤:a)提供至少一种活性物质的固体活性物质颗粒的含水悬浮液,所述固体活性物质颗粒在25℃/ 1013毫巴下具有不超过5g / l的水溶解度并且包含至少一个表面 - 活性物质用于稳定活性物质颗粒,由此悬浮液中的活性物质颗粒具有通过动态光散射确定的平均粒度不超过1200nm; b)第一单体组合物M1在活性物质的含水悬浮液中的乳液聚合,其中单体组合物M1包含基于其总重量至少95重量%的至少一种中性单烯属不饱和单体M1.1 在25℃/ 1013毫巴下具有不超过30g / l的水溶解度,由此获得聚合物/活性物质颗粒的水分散体; 和c)将第二单体组合物M2在步骤b)中获得的聚合物/活性物质颗粒的水分散体中进行乳液聚合,由此单体组合物M2包含基于其总重量至少60重量%的至少60重量% 一种中性的单烯属不饱和单体M2.1,其在25℃/ 1013毫巴下的水溶解度不超过30g / l。