Patent ID: 6747124
Filing Date: 2004-06-08
Classification: C08C,C08F,Y10S

Abstract:
In the process for working up an aqueous polymer latex component prepared by emulsion polymerization, the improvement comprising coagulating the aqueous polymer latex formed after polymerization in the presence ofA) an aqueous solution of at least one salt selected from the group consisting of sodium chloride, calcium chloride, magnesium chloride, aluminum chloride, sodium sulfate, magnesium sulfate and aluminum sulfate, B) an aqueous solution of at least one salt of an acid selected from the group consisting of hypophosphorous acid (H3PO2), phosphorous acid (H3PO3 or HPO2) and ascorbic acid and optionally C) an aqueous dilute acid selected from the group consisting of sulfuric acid, phosphoric acid and acetic acid.