US 12,351,663 B2
Dispersion liquid, ink composition for ink jet recording, and dispersion resin
Mami Tojino, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Nov. 24, 2021, as Appl. No. 17/534,515.
Claims priority of application No. 2020-195214 (JP), filed on Nov. 25, 2020.
Prior Publication US 2022/0162367 A1, May 26, 2022
Int. Cl. C08F 222/04 (2006.01); C08F 212/08 (2006.01); C08F 222/06 (2006.01); C08F 228/00 (2006.01); C08F 228/02 (2006.01); C08F 277/00 (2006.01); C08J 3/05 (2006.01); C08K 5/357 (2006.01); C09D 11/106 (2014.01); C09D 11/30 (2014.01); C09D 11/326 (2014.01); C09D 11/328 (2014.01); C09D 11/38 (2014.01)
CPC C08F 222/04 (2013.01) [C08F 212/08 (2013.01); C08F 222/06 (2013.01); C08F 228/00 (2013.01); C08F 228/02 (2013.01); C08F 277/00 (2013.01); C08J 3/05 (2013.01); C08K 5/357 (2013.01); C09D 11/106 (2013.01); C09D 11/30 (2013.01); C09D 11/326 (2013.01); C09D 11/328 (2013.01); C09D 11/38 (2013.01); C08J 2351/00 (2013.01)] 10 Claims
 
1. A dispersion liquid comprising:
water;
a coloring material, wherein the coloring material is a disperse dye; and
a dispersion resin that disperses the coloring material,
wherein the dispersion resin has a constituent unit A containing a hydrophobic monomer and a constituent unit B represented by any one of the following formulae (1-1) and (1-2),

OG Complex Work Unit Chemistry
in the formulae, R1 independently represents a divalent organic group having 1 to 20 carbon atoms, and R2 independently represents a sulfonic acid group or a salt thereof.