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    • 9. 发明申请
    • FLUOROPOLYMER POWDER AND PROCESS FOR PREPARING THE SAME
    • 氟聚合物粉末及其制备方法
    • WO1997040089A1
    • 1997-10-30
    • PCT/JP1997001393
    • 1997-04-23
    • DAIKIN INDUSTRIES LTD.TOMIHASHI, NobuyukiMIYATANI, Toshio
    • DAIKIN INDUSTRIES LTD.
    • C08J03/12
    • C08J3/12C08J2327/12
    • A process for preparing a fluoropolymer powder characterized by densifying a fluoropolymer as a raw powder by means of rolls under such conditions as to give a specific gravity of at least 90 % of the true specific gravity, pulverizing the densified powder, removing fine particles in an amount of 3 to 40 % by weight of the whole particle size distribution of the pulverized product by air classification, and removing coarse particles in an amount of 1 to 20 % by weight of the whole particle size distribution of the pulverized product. The fluoropolymer powder prepared by the above process has a good producibility and a good powder fluidity and can be used as a powder coating which causes no contamination when thermally fused.
    • 一种制备含氟聚合物粉末的方法,其特征在于,在使比重至少为真比重的至少90%的条件下通过辊致密化作为原料粉末的含氟聚合物,粉碎致密粉末,除去细粉末 粉碎产物的整体粒度分布的3〜40重量%,除去粉碎物的整体粒径分布的1〜20重量%的粗粒子。 通过上述方法制备的含氟聚合物粉末具有良好的生产能力和良好的粉末流动性,并且可以用作当热熔融时不引起污染的粉末涂料。