Patents by Inventor Daryl Copeland

Daryl Copeland 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).

  • Chromium-free silicate-based ceramic compositions with reduced curing temperature
    Patent number: 11225441
    Abstract: A composition based on a certain chromium-free silicate-based binder is described. The composition is an aqueous solution of lithium-doped potassium silicate in combination with an aluminum or aluminum alloy powder, zinc powder or a combination thereof. The coatings of the present invention are capable of achieving a full cure at temperatures as low as 350-450 degrees F. by the inclusion of a colloidal solution of a nano-sized ceria, thus making the coatings especially suitable for application on temperature sensitive base materials.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: January 18, 2022
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Irina Belov, Daryl Copeland
  • CHROMIUM-FREE SILICATE-BASED CERAMIC COMPOSITIONS WITH REDUCED CURING TEMPERATURE
    Publication number: 20200123070
    Abstract: A composition based on a certain chromium-free silicate-based binder is described. The composition is an aqueous solution of lithium-doped potassium silicate in combination with an aluminum or aluminum alloy powder, zinc powder or a combination thereof. The coatings of the present invention are capable of achieving a full cure at temperatures as low as 350-450 degrees F. by the inclusion of a colloidal solution of a nano-sized ceria, thus making the coatings especially suitable for application on temperature sensitive base materials.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 23, 2020
    Inventors: Irina Belov, Daryl Copeland