	US 11,857,665 B2
	Stable cosmetic ink composition
Janette Villalobos Lingoes, Cincinnati, OH (US); Thomas Elliot Rabe, Baltimore, MD (US); Matthew Joseph Linser, Cincinnati, OH (US); and Ajay Suthar, Lexington, KY (US)
Assigned to The Procter and Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Oct. 26, 2020, as Appl. No. 17/079,547.
Application 17/079,547 is a continuation of application No. 16/262,967, filed on Jan. 31, 2019, granted, now 10,849,843.
Claims priority of provisional application 62/624,916, filed on Feb. 1, 2018.
Prior Publication US 2021/0045992 A1, Feb. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/81 (2006.01); A61K 8/29 (2006.01); A61Q 1/02 (2006.01); A61K 8/02 (2006.01); C09D 11/107 (2014.01); C09D 11/322 (2014.01); A61K 8/44 (2006.01); A61K 8/67 (2006.01); A61K 8/60 (2006.01)

CPC A61K 8/8147 (2013.01) [A61K 8/0241 (2013.01); A61K 8/29 (2013.01); A61K 8/8152 (2013.01); A61Q 1/02 (2013.01); C09D 11/107 (2013.01); C09D 11/322 (2013.01); A61K 8/44 (2013.01); A61K 8/60 (2013.01); A61K 8/675 (2013.01); A61K 2800/41 (2013.01); A61K 2800/412 (2013.01); A61K 2800/43 (2013.01); A61K 2800/48 (2013.01); A61K 2800/524 (2013.01); A61K 2800/546 (2013.01); A61K 2800/621 (2013.01); A61K 2800/87 (2013.01)]

18 Claims

1. A cosmetic ink composition comprising:

a. from about 1 to about 30 active wt % of a particulate material having a Particle Size Distribution D50 of about 100 nm to about 2,000 nm;

b. a (meth)acrylic acid homopolymer or salt thereof and

c. a rheology modifier, wherein the rheology modifier is selected from the group consisting of alkali swellable emulsion polymers, hydrophobically modified alkali swellable emulsion polymers, and combinations thereof;

wherein the cosmetic ink composition has a first dynamic viscosity of greater than about 1,100 cP at a shear rate of 0.1 sec−1 measured at 25° C. and a second dynamic viscosity of less than about 100 cP at a shear rate of 1,000 sec−1 measured at 25° C.