Patents by Inventor Christopher C. Matthews

Christopher C. Matthews 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).

  • Autonomic damage indication in coatings
    Patent number: 10640674
    Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: May 5, 2020
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Nancy R. Sottos, Scott R. White, Wenle Li, Christopher C. Matthews
  • AUTONOMIC DAMAGE INDICATION IN COATINGS
    Publication number: 20190144705
    Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 16, 2019
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Nancy R. Sottos, Scott R. White, Wenle Li, Christopher C. Matthews
  • Autonomic damage indication in coatings
    Patent number: 10174221
    Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: January 8, 2019
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Nancy R. Sottos, Scott R. White, Wenle Li, Christopher C. Matthews
  • AUTONOMIC DAMAGE INDICATION IN COATINGS
    Publication number: 20170158883
    Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 8, 2017
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Nancy R. Sottos, Scott R. White, Wenle Li, Christopher C. Matthews