| 摘要 |
PURPOSE:To provide the title paint which has excellent electrical conductivity and whose cured film can be directly soldered, consisting of metallic copper powder, a specified resin mixture, an (un)saturated fatty acid or metal salt thereof an a metal chelate forming agent. CONSTITUTION:2-30wt% metal surface activating resin (a) (e.g., maleinized rosin) is mixed with the balance of the thermosetting resin (b) (e.g., a resol type phenolic resin) to obtain a resin mixture (B). 100pts.wt. mixture of 85-95wt% metallic copper powder (A) having a particle size of not larger than 100mum, pref. 1-30mum and 15-5wt% component B is blended with 1-8pts. wt. (un)saturated fatty acid or metal salt thereof (C) (e.g., potassium oleate), 1-50pts.wt. metal chelate forming agent (D) (e.g., triethanolamine) and optionally an org. solvent (E).
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