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    BLOCK COPOLYMER-CONTAINING INORGANIC PARTICLE DISPERSION FOR COSMETICS
    3.
    发明申请
    BLOCK COPOLYMER-CONTAINING INORGANIC PARTICLE DISPERSION FOR COSMETICS 有权

    公开(公告)号：US20210236411A1

    公开(公告)日：2021-08-05

    申请号：US17054310

    申请日：2019-05-14

    Applicant: Shiseido Company, Ltd.

    Inventor： Kazuyuki MIYAZAWA ,  Yuji ITO

    IPC: A61K8/90 ,  A61K8/06 ,  A61K8/29 ,  A61K8/891 ,  A61Q17/04

    Abstract: The invention provides an inorganic particle dispersion comprising a novel block copolymer capable of improving dispersibility of inorganic particles, particularly an inorganic particle dispersion for a cosmetic.
    The inorganic particle dispersion, particularly the inorganic particle dispersion for a cosmetic of the present invention comprises a dispersion medium, an inorganic particle dispersed in the dispersion medium, and a block copolymer comprising a hydrophobic segment and a hydrophilic segment, wherein the hydrophobic segment comprises a monomer unit composed of at least one monomer selected from the following Formula 1 and Formula 2, wherein at least a portion of the hydrophilic segment is adsorbed on the inorganic particle, and the hydrophobic segment is oriented outwardly relative to the inorganic particle: where R1 is hydrogen or a methyl group, R2 is hydrogen or fluorine, m is an integer of 0 to 6, and n is an integer of 1 to 15, where R1 is hydrogen or a methyl group, R3 and R4 are each independently an alkyl group having 1 to 6 carbon atoms, m is an integer of 1 to 6, and p is an integer of 5 to 70.

    COPOLYMER AND OILY GELLING AGENT
    5.
    发明申请
    COPOLYMER AND OILY GELLING AGENT 审中-公开

    公开(公告)号：US20170348219A1

    公开(公告)日：2017-12-07

    申请号：US15536027

    申请日：2015-10-27

    Applicant: SHISEIDO COMPANY, LTD. ,  GOO CHEMICAL CO., LTD.

    Inventor： MAKOTO UYAMA ,  Kazuyuki MIYAZAWA ,  Takumi WATANABE ,  Mineo ABE ,  Masato MATSUMURA

    IPC: A61K8/81 ,  A61Q1/00 ,  C08F220/58 ,  C08F220/54 ,  A61Q1/06 ,  A61Q19/10 ,  A61K8/04 ,  A61Q5/00 ,  A61Q1/10 ,  A61Q19/00 ,  C08F220/12

    Abstract: The present invention provides a copolymer used as oily gelling agent with which a stable oily gelled composition can be prepared.The copolymer of the present invention is characterized by comprising a hydrophobic monomer represented by the following general formula (1) and a hydrophilic monomer represented by the following general formula (2) and/or the following general formula (3). (In formula (1), R1 is a straight-chain or branched-chain alkyl group having 16 to 22 carbon atoms. R2 is a hydrogen atom or a methyl group.) (In formula (2), R3 is a hydrogen atom, a glyceryl group, a straight-chain or branched-chain hydroxyalkyl group having 1 to 4 carbon atoms, or a polypropylene glycol group represented by —(C3H6O)nH (here, n is an integer of 2 to 10). R4 is a hydrogen atom or a methyl group.) (In formula (3), R5 is a hydrogen atom or a methyl group, R6 is a straight-chain or branched-chain alkyl group or hydroxyalkyl group having 1 to 4 carbon atoms, or a substituent represented by the following structural formula (4).)

    OILY COSMETIC
    6.
    发明申请
    OILY COSMETIC 审中-公开

    公开(公告)号：US20170224608A1

    公开(公告)日：2017-08-10

    申请号：US15329081

    申请日：2015-07-28

    Applicant: SHISEIDO COMPANY, LTD.

    Inventor： Nozomi FUJIYAMA ,  Yukie YODA ,  Kazuyuki MIYAZAWA ,  Nobuyuki IDE

    IPC: A61K8/90 ,  A61Q1/10 ,  A61K8/73

    CPC classification number: A61K8/90 ,  A61K8/73 ,  A61K8/86 ,  A61K2800/31 ,  A61Q1/10

    Abstract: The present invention provides an oil-based cosmetic that can easily be washed out with warm water and is excellent in water resistance. The oil-based cosmetic of the present invention is characterized by comprising (a) to (c): (a) 1 to 25 mass % of a block-type alkylene oxide derivative represented by the below-described formula (I) (b) 1 to 15 mass % of a siliconized pullulan and/or trimethylsiloxysilicic acid (c) 10 mass % or less of water R1O—[(EO)p(PO)q(EO)r]—R2  (I) (In the above formula, EO is an oxyethylene group and PO is an oxypropylene group. The symbols p, q, and r are the average addition mole numbers, and they are p≧1, r≧1, 10≦p+r≦70, and 10≦q≦60. R1 and R2 are either identical or different and they are either a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms.)

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