| 摘要 |
PURPOSE:To provide a paint compsn. which hardly causes precipitation of metallic powder during storage and gives a coating film exhibiting excellent electrical conductivity over a long period of time, by incorporating two specified org. compds. and fumed silica in a principal component consisting of metallic powder and a thermoplastic acrylic resin. CONSTITUTION:The titled compsn. is obtd. by blending 0.5-3pts.wt. mixture consisting of 30-70wt% organosilicon compd. [e.g. gamma-(2-aminoethyl)aminopropyltrimethoxysilane] and 70-30wt% organotitanium compd. (e.g. isopropyltriisostearoyl titanate) and 0.5-3pts.wt. fumed silica with 100pts.wt. principal component consisting of 70-90wt% metallic powder (e.g. Ni, Al or Cu powder having a particle size of 3-50mu) and 30-10wt% thermoplastic acrylic resin. The composn. hardly causes precipitation of metallic powder during storage, is not solidified during storage, exhibits excellent electrical conductivity, hardly causes lowering in electrical conductivity with time and gives a stable electrically conductive film having high reliability.
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