Patents by Inventor Dennis Martin Collins

Dennis Martin Collins 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).

  • Separating polymer from composite structures
    Patent number: 10632728
    Abstract: The present invention provides a method of promoting separation of polymer bonded to a substrate of different material, which collectively form at least part of a polymer composite structure, the method comprising: (1) contacting the polymer composite structure with a composition comprising organic solvent which is absorbed within one or both of the polymer and substrate, wherein the composition comprising organic solvent does not dissolve either the polymer or the substrate, and (2) contacting the polymer composite structure provided in step (1) with liquid (i) having a temperature higher than the boiling point of the composition comprising organic solvent used in step (1), and (ii) that does not dissolve either the polymer or the substrate, the action of which promotes separation between the polymer and the substrate.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: April 28, 2020
    Inventor: Dennis Martin Collins
  • Separating Polymer from Composite Structures
    Publication number: 20190202193
    Abstract: The present invention provides a method of promoting separation of polymer bonded to a substrate of different material, which collectively form at least part of a polymer composite structure, the method comprising: (1) contacting the polymer composite structure with a composition comprising organic solvent which is absorbed within one or both of the polymer and substrate, wherein the composition comprising organic solvent does not dissolve either the polymer or the substrate, and (2) contacting the polymer composite structure provided in step (1) with liquid (i) having a temperature higher than the boiling point of the composition comprising organic solvent used in step (1), and (ii) that does not dissolve either the polymer or the substrate, the action of which promotes separation between the polymer and the substrate.
    Type: Application
    Filed: August 24, 2017
    Publication date: July 4, 2019
    Inventor: Dennis Martin Collins