ZHANG, HANWEI,SCHWANTES, TODD ARLIN,HOBART, KATIE ANN,WILLIAMSON, DIANE JEAN
申请号：
CA2996668
公开号：
CA2996668A1
申请日:
2016.10.26
申请国别(地区):
CA
年份:
2017
代理人:
摘要：
An improved process of making a benefit agent delivery particle and an improved microcapsule made by such process 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 quarternary 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.
