US 11,987,720 B2
Metal-particle dispersion composition and aqueous coating composition
Mari Asano, Aichi (JP); and Kiyohiko Watabe, Aichi (JP)
Assigned to YUKEN INDUSTRY CO., LTD., Aichi (JP)
Filed by YUKEN INDUSTRY CO., LTD., Aichi (JP)
Filed on Sep. 29, 2022, as Appl. No. 17/955,544.
Application 17/955,544 is a division of application No. 16/754,749, granted, now 11,499,066, previously published as PCT/JP2018/037358, filed on Oct. 5, 2018.
Claims priority of application No. 2017-197778 (JP), filed on Oct. 11, 2017.
Prior Publication US 2023/0044816 A1, Feb. 9, 2023
Int. Cl. C09D 17/00 (2006.01); C09D 1/00 (2006.01)
CPC C09D 17/006 (2013.01) [C09D 1/00 (2013.01); C09D 17/001 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A metal-particle dispersion composition containing, based on the entire composition, 10 to 80 mass % of metal particles, 0.01 to 10 mass % of an organic titanate compound in a chelate form, 1 to 40 mass % of water, and 2 to 30 mass % of an organic solvent having a higher boiling point than water,
wherein the organic titanate compound is an organic compound represented by Ti(OR)4, provided that OR groups include at least one chelatable substituent based on triethanolamine,
wherein the organic solvent having a higher boiling point than water is alcohols having 7 or less carbon atoms,
wherein the organic solvent having a higher boiling point than water comprises ethanol, n-propanol, 2-propanol, propylene glycol monoethyl ether, and dipropylene glycol monoethyl ether, and
wherein the metal particles include one or more particles selected from among Zn, Al, Cr, Cu, SUS3O4, In, Mn, Sn, Ni, Fe, Ti, Ag, and Co.