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发明公开
CN105451872A 制备包含具有亲水性胶囊核的微胶囊的微胶囊分散体的方法 无效 - 撤回

制备包含具有亲水性胶囊核的微胶囊的微胶囊分散体的方法
摘要：
本发明涉及制备包含含有亲水性胶囊核和胶囊壁聚合物的微胶囊的微胶囊分散体，其中制备包含疏水性稀释剂作为连续相以及亲水性胶囊核材料、单体组合物和两亲性聚合物的油包水乳液，然后使单体自由基聚合，其中单体组合物包含：30-100重量％的一种或多种选自丙烯酸和/或甲基丙烯酸的C1-C24烷基酯的单体(单体I)，0-70重量％的一种或多种选自丙烯酸、甲基丙烯酸、马来酸、带有羟基和/或羧基的丙烯酸酯和/或甲基丙烯酸酯的单体(单体II)，0-50重量％的一种或多种具有两个或更多个烯属不饱和基团的单体(单体III)，和0-30重量％的一种或多种其它单体(单体IV)，每种情况下基于单体的总重量，并且两亲性聚合物可通过包含至少一种烯属不饱和亲水性单体和至少一种烯属不饱和疏水性单体的单体组合物自由基聚合而得到，可由此得到的微胶囊，及其在用于建筑、化妆品、洗涤剂和清洁剂或作物保护应用的活性成分延迟释放中的用途。
摘要（英）：

The present invention relates to a process for producing a microcapsule dispersion comprising microcapsules comprising a hydrophilic capsule core and a capsule wall polymer, wherein a water-in-oil emulsion comprising a hydrophobic diluent as continuous phase, and the hydrophilic capsule core material, a monomer composition and an amphiphilic polymer is produced and then the monomers are free-radically polymerized, where the monomer composition comprises 30 to 100% by weight of one or more monomers selected from C1-C24-alkyl esters of acrylic acid and/or methacrylic acid (monomers I), 0 to 70% by weight of one or more monomers selected from acrylic acid, methacrylic acid, maleic acid, acrylic acid esters and/or methacrylic acid esters which carry hydroxy and/or carboxy groups (monomers II), 0 to 50% by weight of one or more monomers which has two or more ethylenically unsaturated radicals, (monomers III) and 0 to 30% by weight of one or more other monomers (monomers IV), in each case based on the total weight of the monomers, and the amphiphilic polymer is obtainable by free-radical polymerization of a monomer composition comprising at least one ethylenically unsaturated hydrophilic monomer and at least one ethylenically unsaturated hydrophobic monomer, to the microcapsules obtainable thereby, and to their use for the delayed release of active ingredients for construction, cosmetics, detergents and cleaners or crop protection applications.

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