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    • 6. 发明授权
    • Porous beads and process for producing the same
    • 多孔珠及其制造方法
    • US06689465B1
    • 2004-02-10
    • US10089847
    • 2002-04-04
    • Akihiro OmoriYohsuke Koizumi
    • Akihiro OmoriYohsuke Koizumi
    • B32B566
    • C08J9/16C08J9/28C08J2201/0543C08J2201/0546C08J2371/00C08J2371/08Y10T428/2982Y10T428/2998
    • Disclosed is substantially spherical porous beads of an aromatic polyether ketone resin, which have an average particle diameter of 50 to 5,000 &mgr;m and a porosity of 40 to 99%. Also disclosed is a method for producing porous beads, which comprises: mixing, while heating, an aromatic polyether ketone resin with a sol vent capable of dissolving the resin to thereby obtain a resin solution; dispersing the resin solution in a liquid dispersion medium which is incapable of dissolving the resin and is non-miscible with the solvent, to thereby obtain a dispersion having the resin solution dispersed therein in the form of globules; cooling the dispersion while maintaining the dispersed form of the resin solution in the liquid dispersion medium, to thereby solidify the resin in the resin solution; and separating the solidified resin from a mixture of the solvent and the liquid dispersion medium, thereby obtaining substantially spherical porous beads of the aromatic polyether ketone resin.
    • 公开了平均粒径为50〜5000μm,孔隙率为40〜99%的芳香族聚醚酮树脂的大致球状的多孔质珠粒。 还公开了一种多孔珠粒的制造方法,其特征在于,在加热时混合具有溶解所述树脂的溶剂通道的芳香族聚醚酮树脂,得到树脂溶液; 将树脂溶液分散在不能溶解树脂并且不溶于溶剂的液体分散介质中,从而获得以小球形式分散有树脂溶液的分散体; 冷却分散体,同时将分散形式的树脂溶液保持在液体分散介质中,从而固化树脂溶液中的树脂; 并从溶剂和液体分散介质的混合物中分离固化树脂,从而获得芳族聚醚酮树脂的基本上球形的多孔珠粒。