| 摘要 |
PURPOSE:To obtain the subject coating, containing metallic gold powder, a specific resol type phenolic resin, a saturated or an unsaturated fatty acid (metallic salt thereof) and graphite, and capable of improving capacity of electrodes in a state of excellently kept electric conductivity, screen printability, adhesion, solderability, etc. CONSTITUTION:The objective coating, containing a paste composed of (A) 85-96wt.% metallic gold powder and (B) 15-4wt.% resol type phenolic resin establishing the relations between respective transmittances of (l/n) = 0.8-1.2, (m/n) = 0.8-1.2, (b/a) = 0.8-1.2 and (c/a) = 1.2-1.5 when the infrared transmittances of a 2-monosubstitution product, a 2,4-disubstitution product, a 2,4,6-trisubstitution product, methylol group, dimethylene ether and phenyl group of the aforementioned resin measured by infrared spectroscopy are successively (l), (m), (n), (a), (b) and (c), and further having (C) a saturated or an unsaturated fatty acid (metallic salt thereof) in an amount of 0.1-8pts.wt., based on 100pts.wt. total amount of the components (A) and (B), and (D) graphite in an amount of required pts. wt. based on 100pts.wt. total amount of the components (A) and (B). |
