@ The present invention concerns a process for preparing an aqueous dispersion of water-soluble core/shell particles by emulsifiying a mixture comprising at least one hydrophobic solvent and/or organic target material, at least one hydrophobic solvent, 3, 4, 5 and 6. The emulsified mixture is heated to polymerise the initial monomer, and then at least one base selected from ammonia and the organic amines is added to neutralise the polymerised carboxylic acid to form core/shell particles. Optionally, additional monomer is added whereby said addition monomer is polymerised on or in the previously found shell of said core/shell polymer.
Compositions comprising said core/shell particles are useful as or in coating composition, herbicidal compositions or biocidal compositions.
本发明涉及一种制备
水溶性核/壳粒子
水分散液的工艺,其方法是乳化由至少一种疏
水溶剂和/或有机目标材料、至少一种疏
水溶剂、3、4、5 和 6 组成的混合物。加热乳化混合物,使初始单体聚合,然后加入至少一种选自
氨和有机胺的碱,以中和聚合的
羧酸,形成芯/壳颗粒。可选择添加额外的单体,从而使所述添加单体在所述芯/壳聚合物先前发现的壳上或壳内聚合。
包含所述芯/壳颗粒的组合物可用作或用于涂层组合物、除草组合物或杀菌组合物。