Porous electrically insulating mica tape with UV-crosslinkable varnish, manufacturing and applications of the same

摘要

Mica based porous insulating ribbon comprises mica paper stuck to at least one flexible support by means of varnish which is crosslinked by UV radiation. The varnish has very low viscosity, < 250 mPa.s at 20 degrees C, after exposure to the radiation. Also claimed are method for making ribbon; varnish composition for the ribbon; and conductor insulated by the ribbon.