| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing polymer-coated powder which is firmly coated with a polymeric compound coating film, in particular silicon-based one with no substantial mutual powder aggregation, therefore suitable as a raw material for metal-coated powder useful as a filler having electroconductivity or catalytic ability, an antimicrobial agent or the like. SOLUTION: This method for producing polymer-coated powder comprises mixing powder coated with a polymeric compound coating film into a mixed liquid of at least two kinds of liquids causing a phase separation from each other to disperse the power in the mixed liquid followed by distilling these liquids off simultaneously and drying the resultant powder. By this method, the objective powder without substantial mutual powder aggregation, suitable as a raw material for metal-coated powder useful, in particular as a filler having electroconductivity or catalytic ability, an antimicrobial agent or the like can be produced in an industrially advantageous way. Among others, metal-coated powder produced using a silicon-based polymer-coated powder as a version of this polymer-coated powder can be converted to metal-coated powder provided with a highly heat-resistant coating film such as of silicon oxide or silicon carbide by altering conditions of after-treatment such as heat treatment, therefore affording wide applications.
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