Patent ID: 8324303

Claim:
A surge-resistant and abrasion resistant flexible insulating enamel comprising: resin in an amount of 12 wt % to 76 wt % per 100 wt % by weight of the enamel, wherein the resin consists of polyamideimides (PAI), polyetherimides (PEI), polyesterimides and polyimides; an organic solvent in an amount of 20 wt % to 80 wt % per 100 wt % by weight of the enamel; polyethylene oxide (PEO) intercalated clay in an amount of 0.005 wt % to 16 wt % per 100 wt % by weight of the enamel; and polysilicic acid solution, wherein the polysilicis acid is present in an amount of 0.995 wt % to 16 wt % per 100 wt % by weight of the enamel, and the Si—OH functional groups in polysilicic acid are more than 10/nm. sup.2.