Rabin & Berdo, P.C.
Pentaaryldiamine-containing bismaleimide compound and method of producing the compound
Provided is a pentaaryldiamine-containing bismaleimide compound of Formula (I):wherein Ar1 to Ar5 are independently C6-C12 aryl; and Ar4 and Ar5 are optionally substituted by one or more substitutent(s) selected from the group consisting of C1-C6 alkyl, C1-C6 alkoxy, and cyano. The compound of Formula (I) is obtained by a method including the steps of reacting a diamine with maleic anhydride in a solvent to form an amic acid, and cyclodehydrating the amic acid in the presence of a catalyst and a dehydrating agent. The compound of Formula (I) has a nonlinear and asymmetric structure, is amorphous, and is readily soluble in a variety of organic solvents so that the toughness of the product made there from can be improved and processing of the compound can be simplified.
Industrial Technology Research Institute
H C H
H05K C07D H05K
additional inventional additional
Jung-Mu Guey-Sheng Jing-Pin Cha-Wen Tsung-Hsiung Chang-Rung Hung-Ju
Hsu Liou Pan Chang Wang Yang Yen