	US 11,814,546 B2
	Photoinitiating composition suitable for UV-LED light irradiation and an aqueous coating composition prepared therefrom
Han Xie, Foshan (CN); Gang Duan, Northbrook, IL (US); Xi Zhao, Foshan (CN); Shigang Fan, Foshan (CN); and Hongbin Chen, Foshan (CN)
Assigned to Guangdong Huarun Paints Co., Ltd, Foshan (CN)
Appl. No. 16/635,676
Filed by Guangdong Huarun Paints Co., Ltd, Foshan (CN)
PCT Filed Jul. 30, 2018, PCT No. PCT/US2018/044313 § 371(c)(1), (2) Date Jan. 31, 2020, PCT Pub. No. WO2019/027872, PCT Pub. Date Feb. 7, 2019.
Claims priority of application No. 201710645098.X (CN), filed on Jul. 31, 2017.
Prior Publication US 2021/0122931 A1, Apr. 29, 2021
Int. Cl. C08F 2/48 (2006.01); C09D 7/40 (2018.01); C09D 7/80 (2018.01); C09D 133/08 (2006.01); C09D 143/04 (2006.01); C09D 175/16 (2006.01); C09D 5/02 (2006.01)

CPC C09D 7/40 (2018.01) [C08F 2/48 (2013.01); C09D 5/022 (2013.01); C09D 7/80 (2018.01); C09D 133/08 (2013.01); C09D 143/04 (2013.01); C09D 175/16 (2013.01)]

20 Claims

1. A photoinitiating composition, comprising

a) a photoinitiating system suitable for LED light irradiation having a wavelength in the range of 340-420 nm;

b) a dispersing medium;

wherein the photoinitiating system comprises a photoinitiator and a photosensitizer;

wherein the photoinitiator is an acylphosphine oxide or an α-aminoketone, and the photosensitizer is thioxanthone or derivatives thereof;

wherein the dispersing medium comprises an organic solvent which is miscible with water; and

wherein the dispersing medium comprises a glycol ether selected from the group consisting of ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monobenzyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-butyl ether, propylene glycol monomethyl ether, propylene glycol mono-butyl ether, dipropylene glycol monomethyl ether, and any combination thereof.