公开(公告)号：US20240207167A1

公开(公告)日：2024-06-27

申请号：US18567817

申请日：2021-09-24

申请人： Dow Silicones Corporation ,  Dow Global Technologies LLC

发明人： Tao Wang ,  Yunlong Guo ,  Hongyu Chen ,  Xinyan Bao ,  Xiaoyi Pang

IPC分类号： A61K8/85 ,  A61K8/02 ,  A61K8/29 ,  A61Q5/02 ,  A61Q19/10

CPC分类号： A61K8/85 ,  A61K8/0241 ,  A61K8/29 ,  A61Q5/02 ,  A61Q19/10 ,  A61K2800/26 ,  A61K2800/624 ,  A61K2800/651

摘要： A composite opacifier dispersion is provided, comprising: a dispersion medium; a processing surfactant; and a plurality of composite opacifier particles, wherein the composite opacifier particles comprise metal oxide particles that are partially or completely encapsulated by a polycaprolactone polymer; wherein the metal oxide particles are selected from the group consisting of zinc oxide, titanium oxide and mixtures thereof; wherein the metal oxide particles have a z average particle size of >100 nm as measured by dynamic light scattering; and wherein the composite opacifier particles have a z average particle size of >150 nm to 2,500 nm as measured by dynamic light scattering.