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    • 9. 发明授权
    • Method of preparing homogeneous thermosetting powder paint composition
    • 均匀热固性粉末涂料组合物的制备方法
    • US3940453A
    • 1976-02-24
    • US422230
    • 1973-12-05
    • Santokh S. LabanaAmos GolovoyHenk VAN Oene
    • Santokh S. LabanaAmos GolovoyHenk VAN Oene
    • C08J3/12C08J3/20C09D5/03C09D5/46C08L63/00
    • C09D5/03Y10S525/911Y10S525/913Y10S525/934
    • A method of preparing a homogeneous thermosetting powder paint composition which cures to form a coating exhibiting outstanding exterior durability, adhesion and impact strength. The method comprises: introducing a liquid including at least a crosslinkable copolymer and an inert solvent into a devolatilizing zone wherein the inert solvent is removed and the nonvolatile material is separated in a molten state; feeding said nonvolatile molten material under pressure into a heated mixing zone comprising a static mixer; simultaneously feeding a stoichiometric quantity (.+-. 30%) of a molten crosslinking agent for said copolymer into said mixing zone under pressure; removing the mixture of nonvolatile molten material and molten crosslinking agent from said mixing zone; cooling said mixture to form a solid material; and purlverizing the solid material to form a powder.
    • 一种制备均匀的热固性粉末涂料组合物的方法,其固化形成具有优异的外部耐久性,附着力和冲击强度的涂层。 该方法包括:将包含至少可交联共聚物和惰性溶剂的液体引入脱挥发区,其中惰性溶剂被除去并且非挥发性物质在熔融状态下分离; 将所述非挥发性熔融材料在压力下进料到包括静态混合器的加热混合区中; 同时在压力下将所述共聚物的熔融交联剂的化学计量(+/- 30%)加入到所述混合区中; 从所述混合区域除去非挥发性熔融材料和熔融交联剂的混合物; 冷却所述混合物以形成固体材料; 并将固体材料吹干以形成粉末。