US 12,285,514 B2
Cosmetic composition
Kaori Hayashi, Shiroi (JP); Masayuki Narita, Ichikawa (JP); Naoya Kawakami, Chiba (JP); and Tomokazu Iseki, Izumiotsu (JP)
Assigned to KAO CORPORATION, Tokyo (JP)
Appl. No. 17/598,378
Filed by KAO CORPORATION, Tokyo (JP)
PCT Filed Mar. 26, 2020, PCT No. PCT/JP2020/013861
§ 371(c)(1), (2) Date Sep. 27, 2021,
PCT Pub. No. WO2020/203704, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-070891 (JP), filed on Apr. 2, 2019.
Prior Publication US 2022/0151909 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/81 (2006.01); A61K 8/34 (2006.01); A61Q 5/06 (2006.01)
CPC A61K 8/8158 (2013.01) [A61K 8/8147 (2013.01); A61K 8/8152 (2013.01); A61Q 5/06 (2013.01); A61K 2800/5422 (2013.01); A61K 2800/5424 (2013.01); A61K 2800/5426 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A cosmetic composition comprising the following Components (A) and (B):
Component (A): a hydrophobic cationic polymer which dissolves in ethanol at 25° C. in an amount of 1% by mass or more, has a glass transition temperature Tg of 30° C.-180° C., and is a polymer comprising a constituting unit derived from one or more members selected from acrylamide monomers having a linear alkyl group having 1 or more carbon atoms and 12 or less carbon atoms or a branched alkyl group having 3 or more carbon atoms and 12 or less carbon atoms and aromatic vinyl monomers, and a constituting unit derived from a monomer having an amino group,
wherein Component (A) comprises constituting units represented by formula 1a in an amount of 56% by mass or more, or comprises constituting units represented by formula 2a in an amount of 45% by mass or more, or comprises constituting units represented by formula 3 in an amount of 45% by mass or more;
Component (B): a hydrophilic anionic polymer which dissolves in ethanol at 25° C. in an amount of 1% by mass or more, has a glass transition temperature Tg of 40° C.-130° C., and is a polymer comprising a constituting unit derived from a monomer having a carboxy group,
wherein Component (B) comprises 35% by mass or more of a total of constituting units represented by formula 1b, constituting units represented by formula 2b, and constituting units represented by formula 2c, and
wherein a mass ratio of Component (A) to Component (B) is 0.1 or more and 5.0 or less;
formula 1a:

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 or more carbon atoms and 12 or less carbon atoms which may have a substituent, with the proviso that:
when either one of R2 or R3 is a hydrogen atom, the other is a hydrocarbon group having 4 or more carbon atoms and 12 or less carbon atoms, and
when both R2 and R3 are not a hydrogen atom, they are hydrocarbon groups having a total number of carbon atoms of R2 and R3 of 5 or more and 24 or less; or
alternatively, R2 and R3 may be bound to each other to form a ring structure, and a total number of carbon atoms of R2 and R3 in that case is 5 or more and 24 or less;
formula 1b:

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 or more carbon atoms and 3 or less carbon atoms which may have a substituent, with the proviso that:
when either one of R2 or R3 is a hydrogen atom, the other is a hydrocarbon group having 1 or more carbon atoms and 3 or less carbon atoms, and
when both R2 and R3 are not a hydrogen atom, they are hydrocarbon groups having a total number of carbon atoms of R2 and R3 of 2 or more and 4 or less; or
alternatively, R2 and R3 may be bound to each other to form a ring structure, and a total number of carbon atoms of R2 and R3 in that case is 3 or more and 4 or less,
formula 2a:

OG Complex Work Unit Chemistry
wherein R4 is a hydrogen atom or a methyl group, X′ is an oxygen atom, —Y1—X2 is an alkyl group having 1 or more carbon atoms and 18 or less carbon atoms or an isobornyl group;
formula 2b:

OG Complex Work Unit Chemistry
wherein R4 is a hydrogen atom or a methyl group, X1 is an oxygen atom, Y′ is a group comprising 1 to 15 polyoxyalkylene groups having 2 or 3 carbon atoms, and —X2 is a hydrogen atom, ˜CH3, or —C2H5;
formula 2c:

OG Complex Work Unit Chemistry
wherein R4 is a hydrogen atom or a methyl group, X1 is NH or an oxygen atom, Y1 is an alkylene group having 1 or more carbon atoms and 3 or less carbon atoms, or —C(CH3)2—, X2 is —N(R5)2 or —OR5, where R5 is a hydrogen atom or an alkyl group having 1 or more carbon atoms and 4 or less carbon atoms;
formula 3:

OG Complex Work Unit Chemistry
wherein R6 is a hydrogen atom or a methyl group, and X3 is an aromatic group having 6 or more carbon atoms and 12 or less carbon atoms.