Patent ID: 9223239
Filing Date: 2015-12-29
Classification: C08F,C08G,G03G

Abstract:
1. A process for making a toner resin emulsion comprising: reacting an organic diol with a cyclic alkylene carbonate in the presence of a first catalyst to thereby form a polyalkoxy diol; reacting the polyalkoxy diol with one or more diacid reagents in the presence of a second catalyst in an esterification reaction; monitoring an acid value of a resulting mixture produced from the esterification reaction; subsequently polycondensing the resulting mixture with an unsaturated diacid to form an unsaturated polyester resin; dissolving the unsaturated polyester resin in an organic solvent to form a solution; neutralizing the solution of the polyester resin; adding a sufficient amount of water to the neutralized solution to form a resin emulsion; and removing the organic solvent in the resin emulsion.