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：US20210093544A1

公开(公告)日：2021-04-01

申请号：US17042606

申请日：2019-03-29

Applicant: Shiseido Company, Ltd.

Inventor： Shun KUBOTA ,  Shoko OGAWA ,  Ryushi FUKUHARA

IPC: A61K8/81 ,  A61K8/06 ,  A61K8/27 ,  A61K8/26 ,  A61K8/25 ,  A61K8/19 ,  A61K8/36 ,  A61K8/23 ,  A61K8/73 ,  A61K8/891 ,  A61K8/892 ,  A61K8/41 ,  A61K8/29 ,  A61K8/34 ,  A61K8/31 ,  A61K8/02 ,  A61K8/37 ,  A61Q1/12 ,  A61Q1/02 ,  A61Q17/04 ,  A61Q19/00

Abstract: The purpose of the present invention is to provide a water-in-oil type emulsion cosmetic that has a replenishing and smooth feel-of-use, that, once applied, forms a uniform coating, and that can minimize the appearance of skin roughness such as pores while covering discoloration such as spots and freckles, but that does not give an impression of a thick coating. The present invention provides a water-in-oil type emulsion cosmetic characterized by containing (A) 0.1-20 mass % of metallic soap-treated powder, and (B) a water-absorptive polymer having 0.01-2 mass % of a carboxyl group. The (B) water-absorptive polymer having a carboxyl group of this cosmetic preferably can absorct 10-1,000 times its own weight.

公开(公告)号：US20230018776A1

公开(公告)日：2023-01-19

申请号：US17899175

申请日：2022-08-30

Applicant: Shiseido Company, Ltd.

Inventor： Yuki SUGIYAMA ,  Ryushi FUKUHARA

IPC: C08F220/28 ,  A61K8/06 ,  A61K8/81 ,  A61K8/86 ,  C08F212/08 ,  C08G65/08

Abstract: Provided are: a core-corona polymer particle excellent in emulsion stability and feeling of use, and a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising the particle. The present invention provides a core-corona polymer particle obtained by radical-polymerizing a polyethylene oxide macromonomer represented by the formula (1) and one or two or more of hydrophobic monomers represented by the formulas (2) and (3) under the following conditions (A) to (D).

公开(公告)号：US20210346273A1

公开(公告)日：2021-11-11

申请号：US17283692

申请日：2019-10-07

Applicant: Shiseido Company, Ltd.

Inventor： Ryushi FUKUHARA ,  Yuki SUGIYAMA ,  Takumi WATANABE

IPC: A61K8/894 ,  A61Q19/00 ,  A61K8/81

Abstract: A water-in-oil emulsion composition that is significantly excellent in emulsification stability, and also excellent in non-stickiness is provided. The water-in-oil emulsion composition includes (a) a polyoxyalkylene/alkyl co-modified silicone; (b) a core-corona particle; (c) an oil-phase component; and (d) an aqueous-phase component.

公开(公告)号：US20210007965A1

公开(公告)日：2021-01-14

申请号：US16982315

申请日：2019-03-22

Applicant: Shiseido Company, Ltd.

Inventor： Yuki SUGIYAMA ,  Ryushi FUKUHARA

IPC: A61K8/91 ,  C08F290/06 ,  A61K8/06 ,  A61K8/02 ,  A61Q19/00

Abstract: Provided are a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising a core-corona polymer particle excellent in emulsion stability and feeling of use. Certain embodiments of the present invention provides a raw material for a cosmetic, comprising a core-corona polymer particle dispersion obtained by radical-polymerizing a polyethylene oxide macromonomer represented by formula (1) and one or two or more of hydrophobic monomers represented by formulas (2) and (3) under conditions (A) to (D).

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.

公开(公告)号：US20240148616A1

公开(公告)日：2024-05-09

申请号：US18548273

申请日：2022-03-17

Applicant: SHISEIDO COMPANY, LTD.

Inventor： Takehito SHISHIDO ,  Kei UJIMOTO ,  Ryushi FUKUHARA

IPC: A61K8/06 ,  A61K8/41 ,  A61K8/58 ,  A61Q19/00

CPC classification number: A61K8/064 ,  A61K8/416 ,  A61K8/585 ,  A61Q19/00 ,  A61K2800/10 ,  A61K2800/612 ,  A61K2800/80

Abstract: A water-in-oil emulsion composition includes:



an external oil phase, in which a first hydrophobic powder is dispersed; and
an internal aqueous phase, in which a second hydrophobic powder is dispersed,
in which, among the first hydrophobic powder and the second hydrophobic powder, at least the second hydrophobic powder is a metal oxide treated with trimethylethoxysilane,
in which the water-in-oil emulsion composition further includes a dispersant that disperses the second hydrophobic powder in the internal aqueous phase, and
in which the dispersant is at least one of a silicone-based surfactant and a cationic surfactant.

公开(公告)号：US20210009736A1

公开(公告)日：2021-01-14

申请号：US16982328

申请日：2019-03-22

Applicant: Shiseido Company, Ltd.

Inventor： Yuki SUGIYAMA ,  Ryushi FUKUHARA

IPC: C08F220/28 ,  C08F212/08 ,  C08G65/08 ,  A61K8/81 ,  A61K8/86 ,  A61K8/06

Abstract: Provided are: a core-corona polymer particle excellent in emulsion stability and feeling of use, and a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising the particle. Certain embodiments of the present invention provide a core-corona polymer particle obtained by radical-polymerizing a polyethylene oxide macromonomer represented by formula (1) and one or two or more of hydrophobic monomers represented by formulas (2) and (3) under conditions (A) to (D).

公开(公告)号：US20210007945A1

公开(公告)日：2021-01-14

申请号：US16982348

申请日：2019-03-22

Applicant: Shiseido Company, Ltd.

Inventor： Yuki SUGIYAMA ,  Ryushi FUKUHARA

IPC: A61K8/02 ,  A61K8/06 ,  A61K8/85 ,  A61Q19/00

Abstract: Provided are: a core-corona polymer particle excellent in emulsion stability and feeling of use, and a raw material for a cosmetic and an oil-in-water emulsion cosmetic comprising the particle. Certain embodiments of the present invention provides a core-corona polymer particle obtained by radical-polymerizing a polyethylene oxide macromonomer represented by formula (1) and one or two or more of hydrophobic monomers represented by formulas (2) and (3) under conditions (A) to (D).

公开(公告)号：US20240041709A1

公开(公告)日：2024-02-08

申请号：US18266680

申请日：2022-01-07

Applicant: Shiseido Company, Ltd.

Inventor： Chunming WEN ,  Ryushi FUKUHARA ,  Kuanting LIN

IPC: A61K8/02 ,  A61K8/06 ,  A61K8/92 ,  A61Q17/04

CPC classification number: A61K8/022 ,  A61K8/06 ,  A61K8/92 ,  A61Q17/04

Abstract: An objective of the present invention is to provide a powder dispersion composition provided with high powder dispersibility, and a cosmetic having excellent properties in use and good stability over time due to using the powder dispersion composition. The powder dispersion composition according to the present invention contains (A) a powder, (B) an oil component, and (C) polyglyceryl polyricinoleate, wherein the (B) oil component contains (b1) a polar oil and (b2) a volatile oil; the (b1)) polar oil constitutes 35% to 80% by mass of the overall amount of the (B) oil component; the (b2) volatile oil is 20% by mass or more volatile hydrocarbon oil; and the (C) polyglyceryl polyricinoleate constitutes 0.5% to 10% by mass relative to the overall amount of the powder dispersion composition.