The present invention provides a magnetic core whose outer surface has been coated
without handling brittle ribbon to thereby impart insulating properties and shape
retention properties to the magnetic core after annealing heat treatment, and further
provides an adhesive resin composition for a magnetic core, which is useful for
efficiently producing the above-mentioned magnetic core without using any organic
solvent and which per se is stable to heat and elapse of time. By forming a coating
film having a certain thickness or more on an outer surface using a composition
containing a resin of specific properties, there can be obtained a magnetic core
whose outer surface has been coated without handling brittle ribbon to thereby
impart insulating properties and shape retention properties to the magnetic core
after annealing heat treatment. The adhesive resin composition containing particles
of a resin having specific properties is useful for efficiently producing the above-mentioned
excellent magnetic core without using any organic solvent, and this composition
is stable to heat and elapse of time.
