Patents by Inventor Bernard M. Lescure

Bernard M. Lescure 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).

  • Polymer devolatilization
    Patent number: 5861474
    Abstract: A process has been invented for removing contaminants (including solvent) from a flowing polymer, the process, in one aspect, including dissolving a sparingly soluble stripping agent into a flowing polymer, the sparingly soluble stripping agent stripping contaminants from the flowing polymer creating a mixture of contaminants and sparingly soluble stripping agent, which flows out from the flowing polymer, and separating the mixture from the polymer. In one aspect, recyclable sparingly soluble stripping agent is recovered and re-used.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: January 19, 1999
    Assignee: The Dow Chemical Company
    Inventors: Joseph P. Weller, Lawrence D. Wilson, Michele L. Rosenau, Pat Jimenez, Bernard M. Lescure