公开(公告)号：US20210330573A1

公开(公告)日：2021-10-28

申请号：US17362206

申请日：2021-06-29

Applicant: SHISEIDO COMPANY, LTD.

Inventor： YUKI SUGIYAMA ,  Ryushi FUKUHARA ,  Yang HAN

IPC: A61K8/91 ,  A61K8/06 ,  A61Q19/00 ,  C08F290/06 ,  A61K8/00 ,  A61Q1/00 ,  A61Q17/04 ,  A61K8/86 ,  A61Q5/00 ,  A61K8/81

Abstract: A method of emulsification of an oil phase in an aqueous continuous phase, by dispersing core-corona microparticles into the aqueous phase, adding the oil phase, and applying shearing force for a time sufficient to emulsify the resulting mixture. The core-corona microparticles are obtained by radical co-polymerization of a polyethylene oxide macromonomer with at least one hydrophobic acrylate monomer and at least one hydrophobic acrylamide monomer.

公开(公告)号：US20200246230A1

公开(公告)日：2020-08-06

申请号：US16651848

申请日：2018-09-28

Applicant: Shiseido Company, Ltd.

Inventor： Yang HAN ,  Reiji MIYAHARA ,  Ying WANG

IPC: A61K8/06 ,  A61K8/73 ,  A61K8/92 ,  A61K8/34

Abstract: Disclosed is an oil-in-water emulsion composition, and a preparation method therefor, and a product, wherein the composition comprises: a) cellulose with a hydrophobic group; b) a surfactant; c) a higher alcohol; d) an oil component; e) water; and optionally, f) a humectant and/or g) a higher fatty acid; the composition has a viscosity of 10,000 mPa·s or less.

公开(公告)号：US20190290572A1

公开(公告)日：2019-09-26

申请号：US16336398

申请日：2017-09-12

Applicant: SHISEIDO COMPANY, LTD.

Inventor： Yuki SUGIYAMA ,  Ryushi FUKUHARA ,  Yang HAN

IPC: A61K8/91 ,  A61K8/06 ,  A61Q19/00 ,  C08F290/06

Abstract: An emulsifier is comprised of core-corona type microparticles that an emulsification capability thereof is not affected by the crosslinking level and an oil-in-water emulsified cosmetic emulsified by the afore-mentioned emulsifier. A cosmetic raw material comprising: a core-corona type microparticles that is obtained by radical polymerization of a polyethylene oxide macromonomer represented by a chemical formula (1), and at least one hydrophobic monomer selected from a group of an acrylate derivative monomer represented by a chemical formula (2) and an acrylamide derivative monomer represented by a chemical formula (3) under the conditions (A) to (D); wherein R1 is at least one substitute selected from a group consisting of H and an alkyl group having 1 to 3 carbon atoms, n is a number of 8 to 200, and X is at least one substitute selected from a group consisting of H and CH3; wherein R2 is at least one substitute selected from a group consisting of H and an alkyl group having 1 to 3 carbon atoms, and R3 is a substituent that has an alkyl group having 1 to 12 carbon atoms; wherein R4 is at least one substitute selected from a group consisting of H and an alkyl group having 1 to 3 carbon atoms, and both R5 and R6 are one substitute selected from a group consisting of H and substituents that have an alkyl group having 1 to 18 carbon atoms.