Patent ID: 9211519
Filing Date: 2015-12-15
Classification: B01J,Y10T

Abstract:
1. A method for making microparticles having an exterior surface, comprising: preparing a self-assembled arrangement of individual microparticles; contacting the self-assembled microparticles with a patch-forming agent resulting in a microparticle/patch-forming agent assembly having proximal regions between adjacent microparticles and/or proximal regions between a microparticle and another substrate, wherein the patch-forming agent is present in the proximal region; condensing the patch-forming agent to form a microparticle/condensed patch-forming agent assembly; and subsequently separating individual microparticles from the microparticle/condensed patch-forming agent assembly such that a pattern of a plurality of discrete patches of patch-forming agent are formed on the exterior surfaces of the individual microparticles at the proximal regions.