	US 12,331,196 B2
	Aqueous dispersion of polymeric particles
Yuehan Hu, Shanghai (CN); Yan Li, Shanghai (CN); Zhi Juan Gong, Shanghai (CN); James C. Bohling, Lansdale, PA (US); and Ling Li, Louyang (CN)
Assigned to ROHM AND HAAS COMPANY, Collegeville, PA (US); and DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US)
Appl. No. 17/630,942
Filed by Dow Global Technologies LLC, Midland, MI (US); and Rohm and Haas Company, Collegeville, PA (US)
PCT Filed Sep. 9, 2019, PCT No. PCT/CN2019/104870 § 371(c)(1), (2) Date Jan. 28, 2022, PCT Pub. No. WO2021/046673, PCT Pub. Date Mar. 18, 2021.
Prior Publication US 2022/0275208 A1, Sep. 1, 2022
Int. Cl. C08L 83/10 (2006.01); C09D 183/04 (2006.01)

CPC C08L 83/10 (2013.01) [C09D 183/04 (2013.01)]

20 Claims

1. An aqueous dispersion of polymeric particles in an aqueous medium wherein the polymeric particles comprise an emulsion polymer and have a hydroxyl-terminated polysiloxane with the polymeric particles,

wherein the emulsion polymer comprises, by weight based on the weight of the emulsion polymer, more than 0.5% to 1.8% of structural units of a phosphoalkyl(meth)acrylate, a salt thereof, or mixtures thereof; and

from zero to 5.0% of structural units of an ethylenically unsaturated functional monomer carrying at least one functional group selected from an amide, carboxyl, carboxylic anhydride, sulfonic acid, sulfonate, sulfuric acid, or sulfate group;

wherein the hydroxyl-terminated polysiloxane with the polymeric particles is present in an amount of from 0.1% to 10%, by weight based on the weight of the emulsion polymer.