Patents by Inventor Colin L. LaBerge

Colin L. LaBerge 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).

  • Demulsification of bitumen emulsions with a high molecular weight polyol containing discrete blocks of ethylene and propylene oxide
    Patent number: 4321147
    Abstract: A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polyols of 4 and greater functionality containing discrete blocks of ethylene oxide and propylene oxide wherein the ethylene oxide content of the polyol is greater than about 50% but less than about 95%. The molecular weight of these polyols is greater than about 12,000. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 120.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: March 23, 1982
    Assignees: Texaco Inc., Texaco Canada, Inc.
    Inventors: David R. McCoy, Colin L. LaBerge
  • Demulsification of bitumen emulsions
    Patent number: 4321148
    Abstract: A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are hydrophilic polyurethanes wherein the ethylene oxide content of the polyol portion of the polyurethane is greater than about 70% by weight. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 120.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: March 23, 1982
    Assignees: Texaco Inc., Texaco Canada, Inc.
    Inventors: David R. McCoy, Robert M. Gipson, Kitchener B. Young, Colin L. LaBerge