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    • 70. 发明申请
    • SUPERCRITICAL FLUID AIDED COATING OF PARTICULATE MATERIAL
    • 超临界流体辅助涂料的颗粒材料
    • WO99019085A1
    • 1999-04-22
    • PCT/US1998/021751
    • 1998-10-15
    • B01J2/00B01J2/16B05D1/02B05D3/06B05D7/00
    • C06B21/0083B01J2/006B01J2/16B05D1/025B05D3/061C06B45/18Y02P20/544
    • A method for preparing coatings of thin films onto solid particle has been achieved by in-situ simultaneous nucleation and deposition of dissolved material out of a supercritical fluid, resultant film formation on the solid particles suspended in the supercritical fluid, and subsequent thermal conditioning of the coating on the particles. The coating method involves an enclosed system that provides: 1) for suspension of the solid particles to be coated; 2) for dissolution of the coating material in the supercritical fluid solvent; 3) for temperature or pressure swing operations causing film deposition/coating of the suspended solid particles and; 4) additional chemical addition and/or thermal cycles providing for any additional reactions required (such as polymerization).
    • 通过原位同时成核和从超临界流体中沉积溶解的材料,在悬浮在超临界流体中的固体颗粒上形成膜,以及随后的热调节,已经实现了在固体颗粒上制备薄膜涂层的方法 涂在颗粒上。 涂覆方法涉及一种封闭系统,其提供:1)用于悬浮待涂覆的固体颗粒; 2)用于溶解涂料在超临界流体溶剂中; 3)用于引起膜沉积/涂覆悬浮固体颗粒的温度或压力摆动操作; 4)额外的化学添加和/或热循环,提供任何需要的附加反应(如聚合)。