Patent ID: 6699964
Filing Date: 2004-03-02
Classification: B29B,B29K,C08F,C08J,C08L

Abstract:
A method comprisingdischarging a polymer latex into a stirring tank from an immersed nozzle wherein the cross-sectional surface area of a discharge portion of the nozzle is 40 mm2 or more, the direction of discharge of the polymer latex is the same direction as the flow in the stirring tank and the linear velocity at the nozzle outlet is 50-350 mm/s, to contact the polymer latex with a coagulant to coagulate the graft polymer and form a slurry liquid; and solidifying the slurry liquid at a temperature of 60-100Â° C. wherein the polymer latex is a graft polymer comprising methyl methacrylate units grafted onto a rubber-like polymer, to form particles of the graft copolymer.