	US 12,421,404 B2
	Water-based printing ink compositions
Davis Allred, Charlotte, NC (US)
Assigned to Sun Chemical Corporation, Parsippany, NJ (US)
Appl. No. 17/775,669
Filed by SUN CHEMICAL CORPORATION, Parsippany, NJ (US)
PCT Filed Nov. 17, 2020, PCT No. PCT/US2020/060836 § 371(c)(1), (2) Date May 10, 2022, PCT Pub. No. WO2021/101860, PCT Pub. Date May 27, 2021.
Claims priority of provisional application 62/939,141, filed on Nov. 22, 2019.
Prior Publication US 2022/0411649 A1, Dec. 29, 2022
Int. Cl. C09D 11/00 (2014.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09D 11/08 (2006.01); C09D 11/12 (2006.01); D06P 1/34 (2006.01); D06P 1/46 (2006.01)

CPC C09D 11/033 (2013.01) [C09D 11/037 (2013.01); C09D 11/08 (2013.01); C09D 11/12 (2013.01); D06P 1/34 (2013.01); D06P 1/46 (2013.01)]

23 Claims

1. A water-based ink or coating composition comprising:

a) 20 wt % to 70 wt % water, based on the total weight of the composition; and

b) 15 wt % to 40 wt % one or more natural resins, based on the total weight of the composition;

c) 1 wt % to 20 wt % one or more solvents, based on the total weight of the composition;

d) 1 wt % to 10 wt % one or more natural waxes, based on the total weight of the composition;

e) 0.1 wt % to 5 wt % one or more natural defoamers, based on the total weight of the composition; and

f) 1 wt % to 10 wt % one or more neutralizing agents, based on the total weight of the composition;

wherein the one or more natural resin is selected from the group consisting of rosin, modified rosins, rosin esters, modified rosin esters, epoxidized soybean oil-dampened nitrocellulose, gum Arabic, and combinations thereof;

wherein the ink or coating composition comprises greater than 70 wt %, up to 100 wt % natural materials, based on the total weight of the composition.