Method of forming of a robust network of epoxy material through Diels-Alder reaction
AssigneeArizona Board of Regents on Behalf of the University of Arizona
InventorsDouglas A. Loy, Peter McFadden, Robb E. Bagge
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Abstract
Thermally reworkable epoxy resins prepared through a Diels-Alder reaction are described herein. A maleimide component is reacted with an electron donating component having a furan ring attached to an epoxy ether to produce the epoxy resins. The epoxy component generated by this method can be cured with different diamines lo form a robust network of epoxy material. The robust epoxy material is used as a reversible thermoset and as an adhesive. The robust epoxy network is heated at 90° C. temperature in a retro Diels-Alder fashion to produce colorless starting materials of the maleimide component and the furan component.
Claims20
A method of making a thermally reworkable epoxy material, the method comprising:
- a) forming a first product by reacting a maleimide component with an electron donating component, wherein the maleimide component comprises:
- wherein:
- R1=tetramethyl (bis-propyl)-disiloxane, or carbamate;
- R′=hydrogen or methyl,
- R″=hydrogen or methyl,
- R′″=hydrogen or methyl, and
- R″″=hydrogen or methyl, and
- b) curing the first product with an amine component to form a final product, wherein the final product is a thermally reworkable epoxy material.
A method of making a thermally reworkable epoxy material, the method comprising:
- a) forming a first product by reacting a maleimide component with an electron donating component, wherein the maleimide component comprises:
- wherein:
- R1=tetramethyl (bis-propyl)-disiloxane,
- R′=hydrogen or methyl,
- R″=hydrogen or methyl,
- R′″=hydrogen or methyl, and
- R″″=hydrogen or methyl, and
- b) curing the first product with an amine component to form a final product, wherein the final product is a thermally reworkable epoxy material.
Dependencies are inferred from the claim text.