Patents by Inventor Paul Van Lierde

Paul Van Lierde 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).

  • Patent number: 9012570
    Abstract: The present invention provides a method for continuously producing poly(vinyl butyral) in which the acetalization of poly(vinyl butyral) is carried out using a poly(vinyl alcohol) varnish provided to a mixing region of a high shear mixer at an elevated temperature, which reduces the amount of energy required compared to conventional processing because at least one cooling and heating cycle is eliminated, or makes the recuperation of energy more straightforward.
    Type: Grant
    Filed: April 18, 2009
    Date of Patent: April 21, 2015
    Assignee: Eastman Chemical Company
    Inventors: Ling Tao, Pol D'Haene, Philippe Moniotte, Paul Van Lierde
  • Patent number: 8304516
    Abstract: The present invention provides a method for continuously washing poly(vinyl butyral) in which a poly(vinyl butyral) slurry is passed through multiple continuous stirred tank reactors, each of which is adjusted to specific processing parameters that allow for continuous input, washing, and removal of poly(vinyl butyral). The resulting poly(vinyl butyral) can then be dried to form a powder resin that can be used in place of conventional poly(vinyl butyral) resin. In an alternative embodiment, a counter current screw washing unit is provided that passes wash water over the poly(vinyl butyral) in a direction opposite to the flow of the poly(vinyl butyral), thereby allowing the continuous washing of the poly(vinyl butyral) resin.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: November 6, 2012
    Assignee: Solutia Inc.
    Inventors: Pol D'Haene, Nandan Ukidwe, Paul Van Lierde
  • Publication number: 20110245419
    Abstract: The present invention provides a method for continuously washing poly(vinyl butyral) in which a poly(vinyl butyral) slurry is passed through multiple continuous stirred tank reactors, each of which is adjusted to specific processing parameters that allow for continuous input, washing, and removal of poly(vinyl butyral). The resulting poly(vinyl butyral) can then be dried to form a powder resin that can be used in place of conventional poly(vinyl butyral) resin. In an alternative embodiment, a counter current screw washing unit is provided that passes wash water over the poly(vinyl butyral) in a direction opposite to the flow of the poly(vinyl butyral), thereby allowing the continuous washing of the poly(vinyl butyral) resin.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 6, 2011
    Inventors: Pol D'Haene, Nandan Ukidwe, Paul Van Lierde
  • Patent number: 7960503
    Abstract: The present invention provides a method for continuously washing poly(vinyl butyral) in which a poly(vinyl butyral) slurry is passed through multiple continuous stirred tank reactors, each of which is adjusted to specific processing parameters that allow for continuous input, washing, and removal of poly(vinyl butyral). The resulting poly(vinyl butyral) can then be dried to form a powder resin that can be used in place of conventional poly(vinyl butyral) resin. In an alternative embodiment, a counter current screw washing unit is provided that passes wash water over the poly(vinyl butyral) in a direction opposite to the flow of the poly(vinyl butyral), thereby allowing the continuous washing of the poly(vinyl butyral) resin.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 14, 2011
    Assignee: Solutia, Inc.
    Inventors: Pol D'Haene, Nandan Ukidwe, Paul Van Lierde
  • Publication number: 20100305290
    Abstract: The present invention provides a method for continuously washing poly(vinyl butyral) in which a poly(vinyl butyral) slurry is passed through multiple continuous stirred tank reactors, each of which is adjusted to specific processing parameters that allow for continuous input, washing, and removal of poly(vinyl butyral). The resulting poly(vinyl butyral) can then be dried to form a powder resin that can be used in place of conventional poly(vinyl butyral) resin. In an alternative embodiment, a counter current screw washing unit is provided that passes wash water over the poly(vinyl butyral) in a direction opposite to the flow of the poly(vinyl butyral), thereby allowing the continuous washing of the poly(vinyl butyral) resin.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Inventors: Pol D'Haene, Nandan Ukidwe, Paul Van Lierde
  • Publication number: 20100267921
    Abstract: The present invention provides a method for continuously producing poly(vinyl butyral) in which the acetalization of poly(vinyl butyral) is carried out using a poly(vinyl alcohol) varnish provided to a mixing region of a high shear mixer at an elevated temperature, which reduces the amount of energy required compared to conventional processing because at least one cooling and heating cycle is eliminated, or makes the recuperation of energy more straightforward.
    Type: Application
    Filed: April 18, 2009
    Publication date: October 21, 2010
    Inventors: Ling Tao, Pol D'Haene, Philippe Moniotte, Paul Van Lierde