Patent ID: 7816437
Filing Date: 2010-10-19
Classification: B82Y,C08K,C08L,H05K

Abstract:
1. A polyimide resin composition modified with bismalemide and cyanate, which comprises (a) polyimide resin, (b) cyanate, (c) bismaleimide, and (d) nanometer filler, wherein (a) polyimide resin is contained in an amount of from 75 to 80% by weight, (b) cyanate is contained in an amount of 0.1 to 10% by weight, (c) bismaleimide is contained in an amount of 0.1 to 10% by weight, and (d) nanometer filler is contained in an amount of 1 to 40% by weight, all based on the total weight of the composition; wherein the polyimide resin (a) is obtained from reacting a diamine represented by the formula (I): wherein R with a dianhydride represented by formula (II): wherein Y is a aliphatic tetravalent group containing 2 to 12 carbon atoms; a cycloaliphatic tetravalent group containing 4 to 8 carbon atoms; tetravalent monocyclic or polycyclic C the cyanate (b) is represented by the following formula (III): wherein n is a number of at least 2 and not more than 5, and R (i) residues having a valence of at least 2 and derived from C (ii) organic groups represented by the following formula (1): wherein o is zero (0) or one (1) and R (iii) groups derived from novolac-type phenol resins; and the bismaleimide (c) is represented by the following formula (IV): wherein R wherein o is zero (0) or one (1) and R (iii) groups derived from novolac-type phenol resins.