Patent ID: 6746758
Filing Date: 2004-06-08
Classification: B32B,H02K,Y10T

Abstract:
An insulating material comprising:an insulating layer comprising a flake-shaped inorganic insulating material and a thermosetting resin; a reinforcement layer comprising a reinforcing material and said thermosetting resin; a filler layer comprising a filler material and said thermosetting resin; wherein said filler layer is bonded to said reinforcement layer and said insulating layer; and said thermosetting ream is semi-cured for bonding said insulating layer, said reinforcement layer, and said filler layer; wherein the amount of resin in said insulating layer is 10 wt % to 25 wt % of the total weight of said insulating material; wherein the amount of resin in said filler layer is 10 wt % to 25 wt % of the total weight of said insulating material; and wherein the difference between said amount of resin in said insulating layer and said amount of resin in said filler layer is not more than 10 wt %.