	US 11,889,831 B2
	Aqueous microcapsule slurry
Todd Arlin Schwantes, Lena, WI (US)
Assigned to ENCAPSYS, LLC, Appleton, WI (US); IPS STRUCTURAL ADHESIVES, INC., Compton, CA (US); IPS CORPORATION, Compton, CA (US); WATERTITE PRODUCTS, INC., Compton, CA (US); WELD-ON ADHESIVES, INC., Compton, CA (US); and IPS ADHESIVES LLC, Compton, CA (US)
Filed by ENCAPSYS, LLC, Appleton, WI (US)
Filed on Oct. 17, 2019, as Appl. No. 16/656,436.
Application 16/656,436 is a division of application No. 15/255,986, filed on Sep. 2, 2016, abandoned.
Claims priority of provisional application 62/214,495, filed on Sep. 4, 2015.
Prior Publication US 2020/0054006 A1, Feb. 20, 2020
Int. Cl. A01N 25/10 (2006.01); A01N 25/04 (2006.01); A01N 25/28 (2006.01); A61K 8/11 (2006.01); A61K 8/04 (2006.01); A61K 8/81 (2006.01); A61Q 19/00 (2006.01)

CPC A01N 25/10 (2013.01) [A01N 25/04 (2013.01); A01N 25/28 (2013.01); A61K 8/044 (2013.01); A61K 8/11 (2013.01); A61K 8/8147 (2013.01); A61Q 19/00 (2013.01)]

13 Claims

1. An aqueous slurry composition, comprising an aqueous medium having dispersed therein oily medium-containing microcapsules, wherein the oily medium-containing microcapsules comprise an ionic acrylate copolymer shell encapsulating said oily medium, wherein said ionic acrylate copolymer is made from only water-soluble monomers, said microcapsules release the oily medium upon removal of the aqueous medium without need for pressure to rupture the microcapsules,

wherein said ionic acrylate copolymer comprises a mono-functional acrylate monomer having an ionic group and a multi-functional acrylate monomer, and

wherein the mono-functional acrylate monomer comprises an ester moiety, the ester moiety comprises 1 to 6 carbon atoms, the ionic group comprises an ionic substituent on one of the carbon atoms of the ester moiety, and the ionic group is a carboxylic, a sulfonic, or an ammonium group.