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METHOD FOR MANUFACTURING COAGULATED PARTICLES FROM

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专利名称:METHOD FOR MANUFACTURING

COAGULATED PARTICLES FROM LATEXPREPARED BY EMULSION POLYMERIZATION

发明人:Takashi Ueda申请号:US10598653申请日:20041227

公开号:US20070219294A1公开日:20070920

摘要:A method for manufacturing coagulated particles from a latex prepared byemulsion polymerization has been eagerly demanded, which provides coagulatedparticles having a low content of fine powder and a low water content, and makespossible a granulating operation in the vicinity of the softening temperature of thepolymer. A method for manufacturing coagulated particles from a latex prepared byemulsion polymerization is provided which comprises step (A) of adjusting the

temperature of a latex prepared by emulsion polymerization within the range of Tm±15°C. wherein Tm represents the softening temperature of the polymer in the latex; step (B)of adding polyethylene oxide; step (C) of adding a coagulant to cause phase separationof a polymer component from an aqueous phase; step (D) of further adding a coagulantto form an aqueous suspension containing coagulated polymer particles having avolume-average particle size of 50 to 500 μm; and step (E) of adjusting the temperatureof the suspension to Tm or more.

申请人:Takashi Ueda

地址:Hyogo JP

国籍:JP

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