公开(公告)号：US20210251875A1

公开(公告)日：2021-08-19

申请号：US17255182

申请日：2019-09-30

Applicant: KAO CORPORATION

Inventor： Chihiro OHBA ,  Shingo HIRONO ,  Tomokazu ISEKI ,  Hiroshi KAWAMUKAI ,  Takashi KODATE

IPC: A61K8/81 ,  A61K8/06 ,  A61Q17/04

Abstract: A cosmetic material containing a component (A): ionic polymer particles containing structural units derived from (a) one or more hydrophobic monomers selected from the group consisting of styrene and a derivative thereof, a vinyl ester, and a hydrophobic acrylic monomer, and (b) an ionic hydrophilic monomer or a salt thereof, wherein the ratio by mass of (a) to (b), (a)/(b) is 99.5/0.5 to 80/20, and the tetrahydrofuran-insoluble fraction therein is 10% or more and 100% or less, and a component (B): UV protective agent, wherein the ratio by mass of the component (A) to the component (B) is 5/95 to 30/70.

公开(公告)号：US20220183953A1

公开(公告)日：2022-06-16

申请号：US17598956

申请日：2020-03-26

Applicant: KAO CORPORATION

Inventor： Kaori HAYASHI ,  Masayuki NARITA ,  Naoya KAWAKAMI ,  Tomokazu ISEKI ,  Masato OSHIKA

IPC: A61K8/81 ,  A61Q5/06

Abstract: The present invention relates to a cosmetic composition containing the following Components (A), (B), and (C): Component (A): a hydrophobic polymer which dissolves in ethanol at 25° C. in an amount of 1% by mass or more, and has a glass transition temperature Tg of 30° C. or higher, the polymer having the same electric charge as the following Component (B), or not having an electric charge; Component (B): a hydrophilic ionic polymer which dissolves in ethanol at 25° C. in an amount of 1% by mass or more; and Component (C): an ionic polymer which dissolves in ethanol at 25° C. in an amount of 1% by mass or more, the ionic polymer having a different kind of an electric charge to that of the Component (B). The cosmetic composition of the present invention can be suitably used in cosmetics for hair.

公开(公告)号：US20220151909A1

公开(公告)日：2022-05-19

申请号：US17598378

申请日：2020-03-26

Applicant: KAO CORPORATION

Inventor： Kaori HAYASHI ,  Masayuki NARITA ,  Naoya KAWAKAMI ,  Tomokazu ISEKI

IPC: A61K8/81 ,  A61Q5/06

Abstract: The present invention relates to a cosmetic composition containing the following Components (A) and (B): Component (A): a hydrophobic polymer which has a glass transition temperature Tg of 30° C. or higher, the polymer having a different kind of an electric charge to the following Component (B), or not having an electric charge; and Component (B): a hydrophilic ionic polymer. The cosmetic composition of the present invention can be suitably used in cosmetics for hair.

公开(公告)号：US20210386632A1

公开(公告)日：2021-12-16

申请号：US17279977

申请日：2019-09-30

Applicant: KAO CORPORATION

Inventor： Shingo HIRONO ,  Chihiro OHBA ,  Tomokazu ISEKI

IPC: A61K8/06 ,  A61K8/81 ,  A61K8/02 ,  A61Q19/00 ,  A61K8/891

Abstract: An external preparation containing the following component (A) and component (B). Component (A): ionic polymer particles containing structural units derived from (a) one or more hydrophobic monomers selected from the group consisting of styrene and a derivative thereof, a vinyl ester, and a hydrophobic acrylic monomer, and (b) an ionic hydrophilic monomer or a salt thereof, wherein the ratio by mass of (a) to (b), (a)/(b) is 99.5/0.5 to 80/20, and the ionic polymer particles have a glass transition temperature of higher than 5° C. and 120° C. or lower. Component (B): one or more compounds selected from the group consisting of a phenoxyethanol (B1), a 2-ethylhexyl paramethoxycinnamate (B2), a benzyl alcohol (B3), a sorbitol (B4), a specific oxyalkylene derivative (B5), a polyoxyalkylene alkyl glucoside (BG), an oleic acid (B7), an alkyl benzoate (B8), a xylitol (B9), a 2-ethylhexyl (RS)-2-cyano-3,3-diphenylprop-2-enoate (B10), and a methylphenylpolysiloxane (B11).