US 12,377,038 B2
Cosmetic composition
Kaori Hayashi, Shiroi (JP); Masayuki Narita, Ichikawa (JP); Naoya Kawakami, Chiba (JP); Tomokazu Iseki, Izumiotsu (JP); and Masato Oshika, Chiba (JP)
Assigned to KAO CORPORATION, Tokyo (JP)
Appl. No. 17/598,956
Filed by KAO CORPORATION, Tokyo (JP)
PCT Filed Mar. 26, 2020, PCT No. PCT/JP2020/013860
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/203703, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-070890 (JP), filed on Apr. 2, 2019.
Prior Publication US 2022/0183953 A1, Jun. 16, 2022
Int. Cl. A61K 8/81 (2006.01); A61Q 5/06 (2006.01)
CPC A61K 8/8158 (2013.01) [A61Q 5/06 (2013.01); A61K 2800/5422 (2013.01); A61K 2800/5424 (2013.01); A61K 2800/5426 (2013.01); A61K 2800/5428 (2013.01); A61K 2800/594 (2013.01)] 14 Claims
 
1. A cosmetic composition comprising 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 50° C. or higher;
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;
wherein:
Component (A) is a cationic polymer or a nonionic polymer, Component (B) is a cationic polymer, and Component (C) is an anionic polymer; or
Component (A) is an anionic polymer, Component (B) is an anionic polymer, and Component (C) is a cationic polymer; and
wherein:
at least one selected from the group consisting of Component (A), Component (B), and Component (C) comprises at least one selected from the group consisting of a constituting unit according to formula 1, a constituting unit according to formula 2, and a constituting unit according to formula 3:

OG Complex Work Unit Chemistry
wherein:
R1 is a hydrogen atom or a methyl group, and
each of R2 and R3 is independently a hydrogen atom or a hydrocarbon group having 1 to 6 carbon atoms which may have a substituent, provided that at least one of R2 and R3 is a hydrocarbon group having 1 to 6 carbon atoms which may have a substituent, or alternatively, R2 and R3 are bound to each other to form a ring structure having 3 to 24 carbon atoms;

OG Complex Work Unit Chemistry
wherein:
R4 is a hydrogen atom or a methyl group;
X1 is an oxygen atom or NH;
when X1 is an oxygen atom:
—Y1—X2 is a group selected from an alkyl group having 2 to 18 carbon atoms, an isobornyl group, —(CH2)p—N(R5)2, —(CH2)p—OR5, —C(CH3)2—N(R5)2, and —C(CH3)2—OR5, where p is 1 to 3, and R5 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; or
Y1 is a group containing 1 to 15 polyoxyalkylene groups having 2 or 3 carbon atoms, and X2 is a hydrogen atom, —CH3, or —C2H5; and
when X1 is NH, Y1 is an alkylene group having 1 to 3 carbon atoms, X2 is —N(R5)2, where R5 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and

OG Complex Work Unit Chemistry
wherein R6 is a hydrogen atom or a methyl group, and X3 is an aromatic group having 6 to 12 carbon atoms;
an amount of amine or an amount of carboxylic acid in Component (A) is 1% to 20% by mass;
a mass ratio of Component (A) to Component (B) is 0.8 to 1.5; and
at least one selected from the group consisting of Component (A), Component (B), and Component (C) comprises at least one selected from the group consisting of an alkylamide group and an aminoalkylamide group.