CONDUCTING COMPOSITION Russian patent published in 1995 - IPC

FIELD: electric engineering. SUBSTANCE: phenolformaldehyde resin and colophony taken at the definite ratio were mixed in porcelain plate followed by heating at stirring up to 70-100 C up to the complete colophony dissolving. Then epoxy resin, powdery scaly silver and benzylic alcohol were added to the preliminary cooled mixture. Paste showing required viscosity is prepared by thus. Paste is applied on the backing through the steel net and subjected for thermal working at 220 C for 10 min in the air. Tinplating of conducting films is carried out in baths with solder for 3-5 s at 220 ± 10 C. EFFECT: decreased specific resistance of composition. 2 cl, 1 tbl