Patents by Inventor Marvin Duncan Cooper

Marvin Duncan Cooper 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).

  • Methods for the manufacture of cellulose nanocrystals
    Patent number: 9297111
    Abstract: Embodiments of the present invention relates generally to methods and systems for the manufacture of cellulose nanocrystals. In one embodiment, a method for manufacturing cellulose nanocrystals comprises reacting lignocellulosic fibers with sulfuric acid in water, introducing a water-insoluble solvent to substantially terminate the reaction, separating a first stream comprising at least 70% of the unreacted sulfuric acid in the water-insoluble solvent from a second stream comprising a plurality of cellulose nanocrystals and the remainder of the unreacted sulfuric acid in water, and separating the cellulose nanocrystals from the second stream.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 29, 2016
    Assignee: Domtar Paper Company, LLC
    Inventors: Bruno Marcoccia, Michael Edwards, Marvin Duncan Cooper