Patent ID: 9175175
Filing Date: 2015-11-03
Classification: B01J,B41M,C09B,C09D

Abstract:
1. A method of making a dewatered slurry ready for industrial use, said method comprising: producing a slurry including encapsulated thermochromic systems by combining: an internal phase including a leuco dye and a developer for said leuco dye; a resin; and an aqueous phase including an anionic surfactant in an amount which constitutes greater than 2% of said slurry by weight; wherein said amount of said anionic surfactant is effective to produce said encapsulated thermochromic systems which have a mean by volume particle size diameter of less than 1 micron; and combining an amount of a chemical additive with said slurry; wherein said amount of said chemical additive is effective to facilitate dewatering of said slurry with said anionic surfactant in place to provide said dewatered slurry comprising less than 60% water by weight.