Patents by Inventor Madeline Hartman

Madeline Hartman 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).

  • Delayed cure micro-encapsulated catalysts
    Patent number: 10843180
    Abstract: Controlled release polyurea microcapsules can be prepared from a combination of polyisocyanates using emulsion polymerization. Encapsulated catalysts prepared using the polyurea microcapsules can be used to control the cure rate of coatings and sealants.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: November 24, 2020
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Madeline Hartman, Lawrence G. Anderson
  • DELAYED CURE MICRO-ENCAPSULATED CATALYSTS
    Publication number: 20200101451
    Abstract: Controlled release polyurea microcapsules can be prepared from a combination of polyisocyanates using emulsion polymerization. Encapsulated catalysts prepared using the polyurea microcapsules can be used to control the cure rate of coatings and sealants.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 2, 2020
    Inventors: Madeline Hartman, Lawrence G. Anderson