POLYESTER FILM WITH ELECTRICAL INSULATION AND HEAT CONDUCTION PROPERTIES

摘要

A biaxially stretched thermally conductive and electrically insulating film comprising a polyester forming a matrix and a plurality of anisotropic thermally conductive particles dispersed within the matrix and A process for manufacturing said biaxially stretched polyester film in which the dimension of the anisotropic filler particles with the highest thermal conductivity is oriented out of the film plane, thus conferring on said film improved thermal conductivity properties in the direction perpendicular to the film plane.