US 12,404,477 B2
Composition containing a modified hydroxyalkyl cellulose
Takanori Saito, Tokyo (JP); Yoichiro Imori, Wakayama (JP); and Satoshi Funasaka, Wakayama (JP)
Assigned to KAO CORPORATION, Tokyo (JP)
Appl. No. 17/609,461
Filed by KAO CORPORATION, Tokyo (JP)
PCT Filed Jun. 10, 2020, PCT No. PCT/JP2020/022850
§ 371(c)(1), (2) Date Nov. 8, 2021,
PCT Pub. No. WO2020/250931, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 2019-109050 (JP), filed on Jun. 11, 2019.
Prior Publication US 2022/0228087 A1, Jul. 21, 2022
Int. Cl. C11D 1/38 (2006.01); B08B 3/04 (2006.01); C11D 1/62 (2006.01); C11D 3/22 (2006.01); D06L 1/12 (2006.01); D06M 13/46 (2006.01); D06M 15/09 (2006.01)
CPC C11D 3/222 (2013.01) [C11D 1/62 (2013.01); D06L 1/12 (2013.01); D06M 13/46 (2013.01); D06M 15/09 (2013.01)] 20 Claims
 
1. A composition, comprising:
a modified hydroxyalkyl cellulose (A); and
a cationic surfactant (B),
wherein:
the modified hydroxyalkyl cellulose (A) has a cationic group and a hydrophobic group represented by a formula (1), each of which is bound to a group resulting from eliminating a hydrogen atom from a hydroxy group of a hydroxyalkyl cellulose;
a degree of substitution of the hydroxyalkyl group in the hydroxyalkyl cellulose is 0.1 or more and 3 or less; and
a content of the cationic surfactant (B) is more than 1 part by mass and 1,500 parts by mass or less relative to 1 part by mass of the modified hydroxyalkyl cellulose (A):
*—Z—R1  (1)
wherein:
Z represents a single bond or a hydrocarbon group having an oxygen atom;
R1 represents a hydrocarbon group having 2 or more and 12 or less carbon atoms;
* in formula (1) represents a binding position to a group resulting from eliminating a hydrogen atom from a hydroxy group of the hydroxyalkyl cellulose;
a degree of substitution of the hydrophobic group represented by the formula (1) in the modified hydroxyalkyl cellulose (A) is 0.0001 or more and 1 or less, and
the hydrophobic group represented by the formula (1) is any hydrophobic group represented by formulae (1-1), (1-1′), (1-2), and (1-2′);

OG Complex Work Unit Chemistry
wherein:
R11's each independently represent an alkylene group having 2 to 4 carbon atoms;
R1 in formulae (1-1), (1-1′), (1-2), and (1-2′) is synonymous with R1 in the formula (1);
n1 represents an addition molar number of —R11—O—, and n1 is an integer of 0 or more and 30 or less: and
* in formulae (1-1), (1-1′), (1-2), and (1-2′) is synonymous with * in the formula (1).