公开(公告)号：US20210251875A1

公开(公告)日：2021-08-19

申请号：US17255182

申请日：2019-09-30

Applicant: KAO CORPORATION

Inventor： Chihiro OHBA ,  Shingo HIRONO ,  Tomokazu ISEKI ,  Hiroshi KAWAMUKAI ,  Takashi KODATE

IPC: A61K8/81 ,  A61K8/06 ,  A61Q17/04

Abstract: A cosmetic material containing a component (A): ionic polymer particles containing structural units derived from (a) one or more hydrophobic monomers selected from the group consisting of styrene and a derivative thereof, a vinyl ester, and a hydrophobic acrylic monomer, and (b) an ionic hydrophilic monomer or a salt thereof, wherein the ratio by mass of (a) to (b), (a)/(b) is 99.5/0.5 to 80/20, and the tetrahydrofuran-insoluble fraction therein is 10% or more and 100% or less, and a component (B): UV protective agent, wherein the ratio by mass of the component (A) to the component (B) is 5/95 to 30/70.