申请人:The Procter & Gamble Company
公开号:US10864167B2
公开(公告)日:2020-12-15
An improved process of making a benefit agent delivery particle and consumer products incorporating such particles are disclosed. The process comprises the steps of providing a first composition of water phase 1, water phase 2 and water phase 3. Water phase 1 comprises water and an initiator; water phase 2 comprises water, a water-soluble or dispersible amine(meth)acrylate or hydroxyl(meth)acrylate and a multifunctional (meth)acrylate. Water phase 3 comprises water, and carboxyalkyl(meth)acrylate and a base or quaternary ammonium acrylate. The first two water phases are combined to prereact the hydroxy- or amine(meth)acrylate and the multifunctional (meth)acrylate to form a multifunctional hydroxyl-amine(meth)acrylate pre-polymer. The pre-polymer is combined with water phase 3; then an emulsion is formed by emulsifying under high shear agitation a second composition into said first composition; said second composition comprising an oil phase comprising an isocyanate and a benefit agent core material thereby forming a wall surrounding the benefit agent core material.
本发明公开了一种改进的益处剂输送颗粒制造工艺和含有这种颗粒的消费品。该工艺包括以下步骤:提供由水相 1、水相 2 和水相 3 组成的第一种组合物。水相 1 由水和引发剂组成;水相 2 由水、水溶性或分散性甲基丙烯酸胺或甲基丙烯酸羟基酯和多功能(甲基)丙烯酸酯组成。水相 3 包括水、羧基烷基(甲基)丙烯酸酯和碱或丙烯酸季铵。将前两相水合并,使羟基或胺(甲基)丙烯酸酯和多功能(甲基)丙烯酸酯发生预反应,形成多功能羟基-胺(甲基)丙烯酸酯预聚物。将预聚物与水相 3 结合;然后在高剪切搅拌下将第二种组合物乳化到所述第一种组合物中,形成乳液;所述第二种组合物包括由异氰酸酯组成的油相和益处剂芯材,从而形成围绕益处剂芯材的壁。