Patents by Inventor Edward Tweed

Edward Tweed 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).

  • POLYLACTIC ACID SHRINK FILMS AND METHODS OF CASTING SAME
    Publication number: 20070116909
    Abstract: A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, plasticizers, viscosity enhancers and combinations thereof. A method of cast and tenner manufacture is disclosed, which includes a temperature conditioning step.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 24, 2007
    Inventors: Edward Tweed, Joseph McDaniel
  • Polylactic acid blown film and method of manufacturing same
    Publication number: 20070054073
    Abstract: The invention provides polylactic acid (PLA) films substantially free of plasticizers and methods of manufacturing same by blown film process are provided. PLA films are environmentally degradable and have applications in, at least, packaging and labeling.
    Type: Application
    Filed: November 3, 2006
    Publication date: March 8, 2007
    Inventors: Edward Tweed, Henry Stephens, Theodore Riegert
  • Polylactic acid blown film and method of manufacturing same
    Publication number: 20060045940
    Abstract: The invention provides polylactic acid (PLA) films substantially free of plasticizers and methods of manufacturing same by blown film process are provided. PLA films are environmentally degradable and have applications in, at least, packaging and labeling.
    Type: Application
    Filed: August 24, 2005
    Publication date: March 2, 2006
    Applicant: PLASTIC SUPPLIERS, INC.
    Inventors: Edward Tweed, Henry Stephens, Theodore Riegert