Patent ID: 9120929
Filing Date: 2015-09-01
Classification: B05D,B24C,C08F,C09D,Y10T

Abstract:
1. A method of making an organic polymeric particle, suitable for use in milling, comprising the steps of: (a) providing an oil phase comprising a metal, a metal modifying agent, a cross-linkable organic monomer mixture, and an oil soluble polymerization initiator, wherein the metal has a density of greater than or equal to 8.0 g/cc; (b) admixing the oil phase in an aqueous medium to produce droplets of the oil phase in the aqueous medium, wherein the aqueous medium further comprises a water soluble metal salt and wherein the water soluble metal salt is sodium polytungstate; (c) adding a hydrocolloid to the aqueous medium containing the droplets of the oil phase; and (d) polymerizing the droplets of the oil phase to produce organic polymeric particles comprising a cross-linked polymer host matrix and a metal wherein the metal is within the interior of the cross-linked polymer host matrix.