公开(公告)号：US20230022457A1

公开(公告)日：2023-01-26

申请号：US17757793

申请日：2020-12-14

Applicant: SHISEIDO COMPANY, LTD.

Inventor： Hiroto MUKOYAMA ,  Ken HIROSAKI ,  Kiyoshi TAKAHASHI

IPC: A61K8/02 ,  A61Q1/12 ,  A61K8/26 ,  A61K8/891 ,  A61K8/92 ,  A61K8/29

Abstract: A method for producing a powder solid composition including a base containing non-volatile liquid oil, the method includes: blending wax in a powder form into the base; dispersing the base in a solvent; volatilizing the solvent at a first temperature where the wax does not dissolve; and heating the base at a second temperature where the wax dissolves, wherein a blending amount of the non-volatile liquid oil is 15% by mass or more and 40% by mass or less with respect to the base.