US 12,318,464 B2
Surfactant composition
Atsushi Miyazaki, Wakayama (JP); Chisato Igarashi, Wakayama (JP); Makio Tetsu, Funabashi (JP); Kensuke Aoyagi, Tokyo (JP); and Yuuki Yokota, Hachioji (JP)
Assigned to KAO CORPORATION, Tokyo (JP)
Appl. No. 17/422,764
Filed by KAO CORPORATION, Tokyo (JP)
PCT Filed Feb. 13, 2020, PCT No. PCT/JP2020/005436
§ 371(c)(1), (2) Date Jul. 14, 2021,
PCT Pub. No. WO2020/166639, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 2019-023705 (JP), filed on Feb. 13, 2019.
Prior Publication US 2022/0062134 A1, Mar. 3, 2022
Int. Cl. A61K 8/41 (2006.01); A61K 8/46 (2006.01); A61K 8/891 (2006.01); A61Q 5/00 (2006.01); A61Q 5/02 (2006.01); A61Q 5/12 (2006.01); C09K 23/02 (2022.01); C09K 23/18 (2022.01); C09K 23/54 (2022.01); D06M 13/256 (2006.01); D06M 13/46 (2006.01); D06M 15/643 (2006.01)
CPC A61K 8/416 (2013.01) [A61K 8/466 (2013.01); A61K 8/891 (2013.01); A61Q 5/02 (2013.01); A61Q 5/12 (2013.01); C09K 23/02 (2022.01); C09K 23/18 (2022.01); C09K 23/54 (2022.01); D06M 13/256 (2013.01); D06M 13/46 (2013.01); D06M 15/643 (2013.01); A61K 2800/596 (2013.01); D06M 2200/40 (2013.01)] 16 Claims
 
1. A surfactant composition, comprising:
an anionic surfactant (A);
a cationic surfactant (B), and
a dimethylpolysiloxane (C) having a weight average molecular weight of 3,000-4,000,
wherein:
the following molar ratio RA is 0.10 or more and 0.90 or less; and
the following molar ratio Rb is 0.4 or more:
RA: a molar ratio {(A)/[(A)+(B)]} of an amount of the anionic surfactant (A) to a total amount of the anionic surfactant (A) and the cationic surfactant (B) surfactants
Rb a molar ratio {[(a1)+(b1)]/[(A)+(B)]} of a total amount of a branched anionic surfactant (a1) and a branched cationic surfactant (b1) to the total amount of the anionic surfactant (A) and the cationic surfactant (B),
and wherein:
the branched anionic surfactant (a1) is present in said composition and is an internal olefin sulfonate having a carbon number of 14 or more and 22 or less; and
the cationic surfactant (B) is at least one quaternary ammonium salt cationic surfactant selected from formulae (2) and (3):

OG Complex Work Unit Chemistry
where:
R3 and R4 each independently represent a hydrocarbon group having 6 or more and 26 or less carbon atoms;
R5 and R6 each independently represent an alkyl group having 1 or more and 3 or less carbon atoms; and
X− represents an anion,
and

OG Complex Work Unit Chemistry
where:
R7, R8, and R9 each independently represent an acyl group having 8 or more and 22 or less carbon atoms or a hydrogen atom, provided that R7, R8, and R9 are not a hydrogen atom at the same time;
R10 represents an alkyl group having 1 or more and 3 or less carbon atoms; and
X− represents an anion.