Patent ID: 8030433

Claim:
A tailorable polyimide resin system comprising: a first prepolymer component comprising a reaction product of an end group component, a dianhydride component, and a diamine component wherein the diamine component includes at least 4,4′-(1,3-phenylene-bis(1-methylethylidene)) bisaniline (Bis-M) and meta-phenylenediamine (mPDA); wherein the dianhydride component includes at least 3,4,3′,4′-benzophenonetetracarboxylic dianhydride (BTDA); and the end group component includes at least 5-norbornene 2,3-dicarboxylic acid (NE); and a second prepolymer component different from the first prepolymer component, wherein the second prepolymer component comprises at least one of a monomeric mixture and a reaction product of an end group component, a dianhydride component, and a diamine component wherein the diamine component is at least one member of the group consisting of 4,4′-(1,3-phenylene-bis(1-methylethylidene)) bisaniline (Bis-M), 1,4-phenylenediamine (pPDA) and derivatives thereof; the dianhydride component is at least one member of the group consisting of 3,4,3′,4′-benzophenonetetracarboxylic dianhydride (BTDA), 3,4,3′,4′-biphenyltetracarboxylic dianhydride (BPDA) and derivatives thereof; and the end group component is at least one member of the group consisting of monomethyl ester of 5-norbornene 2,3-dicarboxylic acid (NE) and derivatives thereof; wherein the first and second prepolymer components are present in relative amounts to enable the resin system to be processed by resin transfer molding (RTM) and resin infusion (RI) methods.