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    SUNSCREEN COSMETIC
    2.
    发明申请
    SUNSCREEN COSMETIC 审中-公开

    公开(公告)号：US20180289610A1

    公开(公告)日：2018-10-11

    申请号：US15764738

    申请日：2016-09-30

    Applicant: SHISEIDO COMPANY, LTD.

    Inventor： SATOSHI YAMAKI ,  Kouichi NAGAI ,  Yuki SUGIYAMA

    IPC: A61K8/86 ,  A61Q17/04 ,  A61K8/37 ,  A61K8/35 ,  A61K8/894 ,  A61K8/41 ,  A61K8/92

    Abstract: A sunscreen cosmetic exerts stably an excellent ultraviolet shielding effect without undergoing photodegradation even in a system where 4-tert-butyl-4′-methoxydibenzoylmethane and ethylhexyl methoxycinnamate coexist. The sunscreen cosmetic comprises (a) 0.5-5.0 mass % of 4-tert-butyl-4′-methoxydibenzoylmethane, (b) 3.0-10 mass % of ethylhexyl methoxycinnamate, (c) 5.0 mass % or more of an amphipathic substance, and (d) a liquid oil component containing an ester oil having an IOB of 0.05-0.60, characterized in that the contents of components (a), (b) and (c) satisfy the requirement 0.5≤[(a)+(b)]/(c)≤3.5.

    CORE-CORONA POLYMER PARTICLES
    7.
    发明申请
    CORE-CORONA POLYMER PARTICLES 有权

    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).

    COSMETIC RAW MATERIAL USING CORE-CORONA TYPE MICROPARTICLES AND OIL-IN-WATER EMULSIFIED COSMETIC
    8.
    发明申请
    COSMETIC RAW MATERIAL USING CORE-CORONA TYPE MICROPARTICLES AND OIL-IN-WATER EMULSIFIED COSMETIC 审中-公开

    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.

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