Patents by Inventor Martin Dominic Mancha

Martin Dominic Mancha 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).

  • Ammonia and ammonium hydroxide stabilizers for paraformaldehyde
    Patent number: 11897996
    Abstract: A process for forming stabilizing paraformaldehyde can include heating a formaldehyde solution comprising 30 wt % or more formaldehyde to a temperature ranging from about 70° C. to about 130° C.; aging the formaldehyde solution for a sufficient amount of time to polymerize the formaldehyde and form paraformaldehyde; solidifying the paraformaldehyde; and contacting the formaldehyde solution before and/or during heating, the formaldehyde solution during aging, the paraformaldehyde, and/or the solidified paraformaldehyde with an ammonia and/or ammonia hydroxide stabilizer.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 13, 2024
    Assignee: Celanese International Corporation
    Inventors: John Leslie Ray, Jr., Kenneth Allen Windhorst, Martin Dominic Mancha
  • AMMONIA AND AMMONIUM HYDROXIDE STABILIZERS FOR PARAFORMALDEHYDE
    Publication number: 20220033559
    Abstract: A process for forming stabilizing paraformaldehyde can include heating a formaldehyde solution comprising 30 wt % or more formaldehyde to a temperature ranging from about 70° C. to about 130° C.; aging the formaldehyde solution for a sufficient amount of time to polymerize the formaldehyde and form paraformaldehyde; solidifying the paraformaldehyde; and contacting the formaldehyde solution before and/or during heating, the formaldehyde solution during aging, the paraformaldehyde, and/or the solidified paraformaldehyde with an ammonia and/or ammonia hydroxide stabilizer.
    Type: Application
    Filed: September 5, 2019
    Publication date: February 3, 2022
    Applicant: Celanese International Corporation
    Inventors: John Leslie Ray, Jr., Kenneth Allen Windhorst, Martin Dominic Mancha