Patents by Inventor Jennifer A. Litke

Jennifer A. Litke 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).

  • Plastic sheet offering matte appearance and method of preparation
    Patent number: 7816000
    Abstract: A plastic sheet product having a matte finish comprises a core layer of a thermoplastic polymer and at least one layer of a capstock composition which overlies, and is bonded to, at least one face of the core layer. The capstock composition comprises the same or different thermoplastic polymer and contains a plurality of discrete particles immiscible with and dispersed in the thermoplastic polymer of the capstock composition. The sheet product may be prepared by the co-extrusion of the thermoplastic polymer and the capstock composition, and in a particular embodiment, such co-extrusion may be conducted by means of a feedblock. In a particular embodiment, the thermoplastic polymer of the core layer and that of the capstock composition may be the same, such as in the instance of a methylmethacrylate-methylacrylate copolymer.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: October 19, 2010
    Assignee: Evonik Cyro, LLC
    Inventors: Darrell L. Sparks, Grant B. LaFontaine, Jennifer A. Litke, Robert E. Smith
  • Plastic sheet product offering matte appearance and method of preparation
    Publication number: 20080226872
    Abstract: A plastic sheet product having a matte finish comprises a core layer of a thermoplastic polymer and at least one layer of a capstock composition which overlies, and is bonded to, at least one face of the core layer. The capstock composition comprises the same or different thermoplastic polymer and contains a plurality of discrete particles immiscible with and dispersed in the thermoplastic polymer of the capstock composition. The sheet product may be prepared by the co-extrusion of the thermoplastic polymer and the capstock composition, and in a particular embodiment, such co-extrusion may be conducted by means of a feedblock. In a particular embodiment, the thermoplastic polymer of the core layer and that of the capstock composition may be the same, such as in the instance of a methylmethacrylate-methylacrylate copolymer.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 18, 2008
    Inventors: Darrell L. Sparks, Grant B. LaFontaine, Jennifer A. Litke, Robert E. Smith
  • Plastic sheet product offering matte appearance and method of preparation
    Publication number: 20060019113
    Abstract: A plastic sheet product having a matte finish comprises a core layer of a thermoplastic polymer and at least one layer of a capstock composition which overlies, and is bonded to, at least one face of the core layer. The capstock composition comprises the same or different thermoplastic polymer and contains a plurality of discrete particles immiscible with and dispersed in the thermoplastic polymer of the capstock composition. The sheet product may be prepared by the co-extrusion of the thermoplastic polymer and the capstock composition, and in a particular embodiment, such co-extrusion may be conducted by means of a feedblock. In a particular embodiment, the thermoplastic polymer of the core layer and that of the capstock composition may be the same, such as in the instance of a methylmethacrylate-methylacrylate copolymer.
    Type: Application
    Filed: July 29, 2005
    Publication date: January 26, 2006
    Inventors: Darrell Sparks, Grant LaFontaine, Jennifer Litke, Robert Smith