Patent ID: 8598092
Filing Date: 2013-12-03
Classification: C04B,C08J,C08L,C09K,Y02P

Abstract:
1. A method comprising: providing a degradable material mixture that comprises a degradable material and a first solvent; providing a fluid that comprises a second solvent and a surfactant, wherein the first and second solvents are immiscible in each other and wherein the surfactant comprises at least one surfactant selected from the group consisting of sodium dodecylbenzenesulfonic acid, cetyltrimethylammonium bromide, cetylpyridinium bromide, hexadecylmaltoside, and a derivative thereof; combining the degradable material mixture and the fluid with sufficient shear to form an emulsion that comprises a discontinuous phase and a continuous phase, the discontinuous phase comprising the degradable material mixture and the continuous phase comprising the second solvent; removing at least a portion of the first solvent from the discontinuous phase; and forming a plurality of solid degradable particulates, wherein the solid degradable particulates are solid throughout.