Patents by Inventor Donald Hugh Champion

Donald Hugh Champion 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).

  • DISPERSANTS MADE FROM ISOCYANATES AND AMINES
    Publication number: 20220135727
    Abstract: The present disclosure generally relates to a dispersant obtained from the reaction of a liquid isocyanate compound and a polyoxyalkylene amine and its use in dispersing various particulate solids in an aqueous or organic medium.
    Type: Application
    Filed: March 3, 2020
    Publication date: May 5, 2022
    Inventors: Robert Allison Grigsby, JR., Xiaohua Fang, Donald Hugh Champion
  • Reduced pour point surfactants
    Publication number: 20020004541
    Abstract: Reduced pour point ethylene oxide/propylene oxide block copolymer surfactants, pour point depressants for reducing the pour point of such surfactants, and a process for preparing such surfactants, wherein the reduced pour point is achieved without adversely affecting the properties or structure of the parent ethylene oxide/propylene oxide block copolymer surfactant or contributing to the formation of a hazy product. According to the present invention, the pour point of ethylene oxide/propylene oxide block copolymer surfactants may be reduced by mixing a parent ethylene oxide/propylene oxide block copolymer surfactant with a pour point depressant comprising a low molecular weight glycol, water, and a dialkyl sulfosuccinate.
    Type: Application
    Filed: July 13, 2001
    Publication date: January 10, 2002
    Applicant: Huntsman Petrochemical Corporation
    Inventors: David Charles Lewis, Donald Hugh Champion