Patent 7241491 was granted and assigned to Mitsui Chemicals on July, 2007 by the United States Patent and Trademark Office.
The polyimide metal laminate has at least one resin layer produced from a silica-dispersed polyimide composition obtained by reacting (A) alkoxysilane and/or its partial hydrolysis polycondensate with (B) an amino-containing compound having a functional group capable of forming a bond with silica, in the presence of water in a polyimide solution and/or a polyamic acid solution.