US 12,110,405 B2
Aqueous dispersion, method of manufacturing aqueous dispersion, and ink
Ryo Miyakoshi, Kanagawa (JP); Takuya Yamazaki, Kanagawa (JP); and Chikako Hatta, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Ryo Miyakoshi, Kanagawa (JP); Takuya Yamazaki, Kanagawa (JP); and Chikako Hatta, Kanagawa (JP)
Filed on Sep. 16, 2021, as Appl. No. 17/476,724.
Claims priority of application No. 2020-167249 (JP), filed on Oct. 1, 2020.
Prior Publication US 2022/0106491 A1, Apr. 7, 2022
Int. Cl. C09D 11/326 (2014.01); C08L 67/00 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01)
CPC C09D 11/326 (2013.01) [C08L 67/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An aqueous dispersion comprising:
emulsion resin particles comprising:
pigment enclosing emulsion resin particles each comprising:
a resin; and
an inorganic pigment enclosed in the resin,
wherein the pigment enclosing emulsion resin particles have a 50 percent cumulative volume particle diameter (D50) of from 40 to 300 nm as measured by a laser diffraction scattering method,
wherein the pigment enclosing emulsion resin particles have an average aspect ratio of from 1.0 to 1.5.