Patents by Inventor Lise Dahuron

Lise Dahuron 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).

  • Membrane injector
    Patent number: 5254260
    Abstract: This invention relates to a method and system for proportionating, mixing, pressurizing, heating and supplying a coating formulation, wherein a microporous membrane injector/mixer located in the relevant section of the system so that undesirable precipitation of solid polymer from the coating formulation is subsequently avoided.
    Type: Grant
    Filed: May 12, 1992
    Date of Patent: October 19, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Kenneth A. Nielsen, Jeffrey D. Goad, Lise Dahuron
  • Treatment of lower glycol-containing operative fluids
    Patent number: 5194159
    Abstract: Operative fluids containing lower glycol are contacted with semi-permeable membranes under reverse osmosis conditions to permeate lower glycol to provide a reclaimed lower glycol product. Exemplary operative fluids include antifreeze solutions, heat transfer fluids, deicers, quenchants, hydraulic fluids, lubricants, solvents and absorbents.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: March 16, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Kathleen F. George, Lise Dahuron, John H. Robson, George E. Keller, II, Benjamin Bikson
  • Treatment of lower glycol-containing operative fluids
    Patent number: 5102549
    Abstract: Operative fluids containing lower glycol are contacted with semi-permeable membranes under reverse osmosis conditions to permeate lower glycol to provide a reclaimed lower glycol product. Exemplary operative fluids include antifreeze solutions, heat transfer fluids, deicers, quenchants, hydraulic fluids, lubricants, solvents and absorbents.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: April 7, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Kathleen F. George, Lise Dahuron, John H. Robson, George E. Keller, II, Benjamin Bikson
  • Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
    Patent number: 5034134
    Abstract: A method is disclosed for separating impurity components, UV absorbers and/or UV absorber precursors contained in an ethylene glycol-water stream thereby desirably allowing the recovery of the glycols contained in such stream in an economical and efficient manner. Specifically, these undesirable components are separated by contacting the ethylene glycol-water stream with a suitable semi-permeable membrane to effect such separation.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: July 23, 1991
    Assignee: Union Carbide Chemicals And Plastics Technology Corporation
    Inventors: Kathleen F. George, Lise Dahuron, John H. Robson, George E. Keller, II