| 摘要 |
PURPOSE:To obtain economically the titled shielding sheet having excellent adhesion and durability by printing specific metallic powder paste on a transparent glass sheet by a screen process, and then calcining the material at a specified temp. CONSTITUTION:Metallic powder paste is prepared by adding 10-80pts.wt. glass frit having <=100mum particle diameter and 400-700 deg.C m.p. and 90-20pts.wt. metallic powder (e.g., Ni powder) having <=100mum particle diameter into an org. solvent wherein an org. binder such as epoxy resin and acrylic resin and, as required, a defoaming agent such as silicon oil and a dispersant are dissolved. The paste is then printed by a screen process on a transparent glass sheet in plural mesh points pattern, and the sheet is heated at 200-400 deg.C for 5-10min to thermally decompose the binder. The sheet is the heated and calcined at temp. higher than the m.p. of the glass frit for 5-30min.
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