Patent ID: 7309724

Claim:
A thermosetting resin composition comprising: (a) a liquid maleimide composition having the structure: wherein: m=1, 2 or 3, each R is independently selected from hydrogen or lower alkyl, and X is a monovalent or polyvalent radical selected from: branched chain alkyl, alkylene or alkylene oxide species having from about 12 to about 500 carbon atoms and having sufficient length and branching to render the maleimide liquid, aromatic groups having the structure: wherein: n=1, 2 or 3, each Ar is a monosubstituted, disubstituted or trisubstituted aromatic or heteroaromatic ring having in the range of 3 up to 10 carbon atoms, and Z is a branched chain alkyl, alkylene or alkylene oxide species having from about 12 to about 500 atoms in the backbone thereof and having sufficient length and branching to render the maleimide liquid, or mixtures thereof; (b) in the range of 0.1 up to 5 wt % of at least one suitable crosslinking catalyst, based on the total weight of the composition; (c) in the range of 0.5 up to 25 wt % of at least one glycidyl ether epoxy compound; and (d) optionally, a diluent for the maleimide composition.