Patent ID: 8545935
Filing Date: 2013-10-01
Classification: C09K,E21B

Abstract:
1. A method of creating particulates coated with acid-releasing degradable material comprising the steps of: combining an acid-releasing degradable material with a solvent or a plasticizer to create a coating solution, wherein the acid-releasing degradable material comprises at least one acid-releasing degradable material selected from the group consisting of: poly(orthoester); a lactide, a poly(lactide); a glycolide; a poly(glycolide); a poly(ε-caprolactone); a poly(hydroxybutyrate); a substantially water insoluble anhydride; a poly(anhydride); a poly(amino acid); a copolymer of two or more of the above-listed compounds; and any combination thereof; providing a first flowing stream comprising the coating solution; providing a second flowing stream comprising particulates; combining the first and second flowing streams to create a third flowing stream comprising particulates coated with the coating solution wherein the particulates are coated with from about 2% to about 20% acid-releasing degradable material by weight of the particulates.