PROTECTIVE COAT FOR PRINTED CIRCUIT BOARDS Russian patent published in 2009 - IPC C09D163/00 H05K3/28 

FIELD: process engineering.

SUBSTANCE: proposed invention relates to p.c.b. protective coats produced by applying epoxy-urethane or epoxy lacquer or organic silicon compound-based lacquer on p.c.b. surface and drying it. It differs from known methods in that, to add biological resistance after heating, biocide additive Biocice T is introduced in lacquer composition in the ratio that follows, i.e. content of epoxy-urethane or epoxy lacquer or organic silicon compound-based lacquer makes (98.5 to 99.5) wt %, and biocide additive makes (0.5 to 1.5) wt %.

EFFECT: improved operating performances.

1 cl, 2 ex