SOLDERING FLUX FOR WASHINGLESS LOW-TEMPERATURE SOLDERING Russian patent published in 1997 - IPC

FIELD: soldering. SUBSTANCE: flux contains, wt.-%: mixture of difficultly water-soluble mono- and dibasic C₄-C₁₀-carboxylic acids, 3.5-6.0; natural or synthetic resin, up to 5.0; benzotriazol, 0.1-0.5; monoatomic alcohol or mixture thereof with ethylacetate or triacetyn, the balance. Flux may be supplemented with polyoxyethylated esters of lauric and oleic acids with average molecular weight 596 and 503, respectively, or polyoxyethylated fatty C₁₀-C₁₈-alcohols with molecular weight 1000, up to 0.25. EFFECT: simplified soldering procedure. 2 cl, 1 tbl