Patent ID: 8921469

Claim:
A wire enamel formulation based on polyvinyl formal, wherein the formulation comprises: from 5% to 40% by weight of (a) ethanol, from 10% to 55% by weight of (b) aromatic hydrocarbon or hydrocarbon mixture, from 0% to 50% by weight of (c) high-boiling solvent having a boiling point of at least 160° C. which is at least one of an alcohol, an ester, and a glycol ester, from 0% to 5% by weight of (d) one or more solvents which are different from (a) to (c) from 10% to 40% by weight of (e) binder comprising polyvinyl formal resin and crosslinker, the above percentages being based in each case on the total weight of the wire enamel formulation which represents 100% by weight and adding up to 100% by weight.