VANISH AND MAKING METHOD THEREOF

摘要

The varnish for an enamel electric wire is produced by (a) synthesizing a polyester resin contg. carboxylic acid gp. with a polyhydric alcohol contg. ethylene glycol and glycerol and excessive polyacids contg. 2-3 aromatic organic acid a crosslinking agent and an organic metal salt cpd. as a catalyst. The electric wire has a good winding characteristic, heat resistance and wear resistance.