| 摘要 |
PURPOSE:To provide an electrically conductive paint which has a long pot life and gives a coating film having excellent characteristics, containing a specified binder component and an electrically conductive material. CONSTITUTION:A binder component consisting of an isocyanate source compound obtd. by blocking a trimethylolpropane adduct of hexamethylene diisocyanate or a trimer of hexamethylene diisocyanate with imidazole and a resin contg. active hydrogen and having a hydroxyl value of 100-150eq/10<6>g (e.g. polyester polyol), an electrically conductive material (e.g. silver powder) and a solvent are kneaded together. EFFECT:The paint can be cured at a low temp. in a short time (at 120-150 deg.C for 5min), has good adhesion to film substrates and gives a cured film having a pencil hardness of H or above and an area resistance of 0.1OMEGA/square. USE:Paints for printed-wiring boards for a keyboard switch, resistors, electrodes, etc. |
