Patents by Inventor Chang Dou

Chang Dou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • CHEMICAL RECYLING OF PLASTICS USING IONIC LIQUIDS OR DEEP EUTECTIC SOLVENTS
    Publication number: 20240052133
    Abstract: A method for depolymerizing a mixture of plastics is described. The method comprises (a) providing a composition comprising two of more plastics, (b) introducing a solvent comprising an ionic liquid (IL) or deep eutectic solvents (DES) and optionally water to the composition to form a solvent-plastic composition, such as an aqueous solvent-plastic composition, and (c) incubating the solvent-plastic composition for a period of time to produce a depolymerized composition such that at least portions of the two of more plastics are depolymerized into monomers. The produced monomers can be used as a carbon source for microbes to produce bioproducts.
    Type: Application
    Filed: August 5, 2023
    Publication date: February 15, 2024
    Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, National Technology and Engineering Solutions of Sandia, LLC
    Inventors: Chang Dou, Hemant Choudhary, Ning Sun, Blake A. Simmons