公开(公告)号：US20210228472A1

公开(公告)日：2021-07-29

申请号：US16305474

申请日：2017-05-29

Applicant: SHISEIDO COMPANY, LTD.

Inventor： TOMO OSAWA ,  Ayano MATSUO ,  Yuji SONOYAMA ,  Tomoko IKEDA ,  Shun KUBOTA ,  Mao HITOMI ,  Takuya HIRUMA ,  Tetsuya KANEMARU

IPC: A61K8/898 ,  A61K8/81 ,  A61K8/19 ,  A61Q1/12 ,  A61K8/891

Abstract: Provided is an elastomer that improves the skin feel of an inorganic powder. The elastomer according to the present invention is an elastomer comprising: (A) an amino group-containing silicone polymer; and (B) a carboxyl group-containing silicone polymer or a carboxyl group-containing acrylamide polymer, wherein a molar ratio Y/X between amino groups and carboxyl groups is within a range of 0.1 to 1.2, wherein Y denotes the molar amount of carboxyl groups contained in the component (B), and X denotes the molar amount of amino groups contained in the component (A).

公开(公告)号：US20230338244A1

公开(公告)日：2023-10-26

申请号：US18217346

申请日：2023-06-30

Applicant: Shiseido Company, Ltd.

Inventor： Ayano MATSUO ,  Atsushi SOGABE ,  Tomo OSAWA ,  Mao HITOMI ,  Tomoko IKEDA ,  Chunming WEN

IPC: A61K8/06 ,  A61K8/81 ,  A61Q19/00

CPC classification number: A61K8/064 ,  A61K8/8147 ,  A61K8/8158 ,  A61Q19/007 ,  A61K2800/10 ,  A61K2800/48 ,  A61K2800/594 ,  A61K2800/614

Abstract: Provided is a water-in-oil emulsified cosmetic having improved feeling on use and usability. The water-in-oil emulsified cosmetic may include: (a) one or more polymers selected from the group consisting of polyacrylic acid, a salt of polyacrylic acid, poly(2-acrylamido-2-methylpropanesulfonic acid), and a salt of poly(2-acrylamido-2-methylpropanesulfonic acid) and having (i) a weight average molecular weight of 1 million to 4 million, and (ii) a viscosity at 25° C. when made into a 1% by mass aqueous solution of 1 Pa·s or less, (b) an aqueous phase component other than the component (a); (c) 60% by mass or less of an oily component, and (d) an emulsifier.