公开(公告)号：US20230047456A1

公开(公告)日：2023-02-16

申请号：US17788582

申请日：2020-12-22

Applicant: SHISEIDO COMPANY, LTD.

Inventor： Reina WATANABE ,  Minori NAKAJIMA ,  Haruka NISHI

IPC: A61K8/06 ,  A61Q17/04 ,  A61K8/02

Abstract: To provide an oil-in-water type emulsified cosmetic comprising a pigment grade hydrophobically treated particle and a hydrophobically treated microparticle, which is capable of uniformly applying particles subjected to hydrophobization treatment on the surface of the skin and exhibiting a good tone-up effect and the like.
The oil-in-water type emulsified cosmetic of the present disclosure comprises a dispersion medium comprising water, and an oil droplet dispersed in the dispersion medium, wherein the dispersion medium comprises a nonionic surfactant, a polyhydric alcohol, and a pigment grade hydrophobically treated particle having an average particle diameter of 300 nm or more, wherein the oil droplet comprises an oil content , a nonionic surfactant, and a hydrophobically treated microparticle having an average particle diameter of 200 nm or less, and wherein the oil content comprises a volatile oil.

公开(公告)号：US20200289400A1

公开(公告)日：2020-09-17

申请号：US16649342

申请日：2018-09-28

Applicant: SHISEIDO COMPANY, LTD.

Inventor： Minori NAKAJIMA ,  Keita NISHIDA ,  Yurika WATANABE ,  Daiki ARAI ,  Taichi HARADA

IPC: A61K8/92 ,  A61K8/06 ,  A61K8/73 ,  A61Q17/04

Abstract: An oil-in-water-type emulsion cosmetic contains an ultraviolet ray scattering agent and which has preparation stability in a system where a water-soluble alkyl-substituted polysaccharide derivative and another emulsifying agent coexist is further improved. The oil-in-water-type emulsion cosmetic containing (A) a water-soluble alkyl-substituted polysaccharide derivative, (B) a nonionic surfactant and (C) an ultraviolet ray scattering agent, wherein the blend ratio [(A)/(B)] of the water-soluble alkyl-substituted polysaccharide derivative (A) to the nonionic surfactant (B) is 1.54 or less, and the blend ratio [(A)/(C)] of the water-soluble alkyl-substituted polysaccharide derivative (A) to the ultraviolet ray scattering agent (C) is 0.02 or less.