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US 12,460,063 B2Granted
Recovery and reuse of acid digested amine/epoxy-based composite matrices
AssigneeUniversity of Southern California
InventorsTravis J. Williams, Steven Nutt, Yijia Ma, Carlos Navarro
Life of this patent
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Abstract
A method for recycling matrix residues includes steps of degrading a target epoxy to form matrix residues, collecting the matrix residues, and adding the matrix residues into a polymer-forming formulation. Characteristically, the polymer-forming formulation includes multifunctional anhydride monomers and polyfunctional co-reactant monomers.
Claims31
A method for recycling matrix residues, the method comprising:
- degrading a target epoxy to form matrix residue materials;
- collecting the matrix residue materials;
- and
- adding the matrix residue materials into a polymer-forming formulation, the polymer-forming formulation including multifunctional anhydride monomers and polyfunctional co-reactant monomers, wherein the matrix residues are a filler for the polymer-forming formulation.
1 more element
A method for recycling matrix residues, the method comprising:
- degrading a target epoxy to form matrix residue materials;
- collecting the matrix residue materials;
- adding the matrix residue materials into a polymer-forming formulation, the polymer-forming formulation including multifunctional anhydride monomers and polyfunctional co-reactant monomers;
- and
- contacting the target epoxy with an acidic solution for a predetermined time period to form a reacted mixture, wherein the acidic solution includes acetic acid and is exposed to oxygen.
2 more elements
A method for recycling matrix residues, the method comprising:
- degrading a target epoxy to form matrix residue materials;
- collecting the matrix residue materials;
- adding the matrix residue materials into a polymer-forming formulation, the polymer-forming formulation including multifunctional anhydride monomers and polyfunctional co-reactant monomers;
- and
- contacting the target epoxy with an acidic solution for a predetermined time period to form a reacted mixture, wherein the acidic solution includes hydrogen peroxide and acetic acid and wherein matrix residues are obtained from the reacted mixture by evaporation of the acetic acid.
2 more elements
Dependencies are inferred from the claim text.