Imide-extended liquid bismaleimide resin
AssigneeDesigner Molecules, Inc.
InventorsFarhad G. Mizori, Stephen M. Dershem
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Abstract
The invention is based on the discovery that a remarkable improvement in the performance of bismaleimide thermosets can be achieved through the incorporation of an imide-extended liquid bismaleimide monomer. This imide-extended liquid bismaleimide monomer is readily prepared by the condensation of an appropriate dianhydride with two equivalents of an appropriate diamine to give an amine terminated compound. This compound is then condensed with an excess of maleic anhydride to yield an imide-extended liquid bismaleimide monomer.
Claims16
A liquid imide-extended bismaleimide monomer having the structure:
A method for producing a liquid imide-extended bismaleimide monomer comprising:
- contacting 4,4′-bisphenol A dianhydride (BPADA) with a diamine under conditions suitable to form an imide having terminal amino moieties;
- and
- contacting the terminal amino moieties with maleic anhydride under conditions suitable to form a maleimide,
- thereby producing a liquid imide-extended bismaleimide monomer.
Dependencies are inferred from the claim text.