Patents by Inventor Elizabeth E. Grimes

Elizabeth E. Grimes 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).

  • Publication number: 20120223453
    Abstract: The invention relates to a process for forming an extruded transparent or translucent polyamide article including melt calendering to improve the physical properties and optical clarity. The polyamide article is a sheet, film, or profile.
    Type: Application
    Filed: May 16, 2012
    Publication date: September 6, 2012
    Applicant: Arkema Inc.
    Inventors: Elizabeth E. Grimes, William Todd Rogers, Claire Isabelle Michalowicz
  • Patent number: 8119231
    Abstract: The invention relates to a novel acrylic impact sheet having bullet-resistant properties. The bullet-resistant sheet is composed of a copolymer of methyl methacrylate and a C2-18 alkyl methacrylate, plus impact modifiers that are refractive index matched or mismatched with the polymer matrix. The sheet provides very good bullet resisting performance, with better performance at the same thickness as current products, or the same performance at less thickness, thereby providing a product having better properties and/or less weight. The reduced weight of a bullet resistant acrylic sheet formulation will provide reduced raw material, transportation, and construction costs. Bullet resistant transparent glazing is an especially useful application for the invention.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: February 21, 2012
    Assignee: Arkema France
    Inventors: Shi-Jun Yang, Richard M. Abel, Jack J. Reilly, Elizabeth E. Grimes
  • Publication number: 20100203346
    Abstract: The invention relates to extruded transparent or translucent article that have been melt calendered to improve the physical properties and optical clarity. The polyamide article is a sheet, film, or profile.
    Type: Application
    Filed: June 26, 2008
    Publication date: August 12, 2010
    Applicant: Arkema Inc.
    Inventors: Elizabeth E. Grimes, William Todd Rogers, Claire Michalowicz