Patents by Inventor Edward Carl Tweed

Edward Carl 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
    Patent number: 8551586
    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: Grant
    Filed: August 22, 2012
    Date of Patent: October 8, 2013
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Joseph B. McDaniel
  • POLYLACTIC ACID SHRINK FILMS AND METHODS OF CASTING SAME
    Publication number: 20120316275
    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: August 22, 2012
    Publication date: December 13, 2012
    Inventors: Edward Carl TWEED, Joseph B. McDaniel
  • Polylactic acid shrink films and methods of casting same
    Patent number: 8263197
    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: Grant
    Filed: July 7, 2011
    Date of Patent: September 11, 2012
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Joseph B. McDaniel
  • Polylactic acid blown film and method of manufacturing same
    Patent number: 8133558
    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: Grant
    Filed: August 24, 2005
    Date of Patent: March 13, 2012
    Assignee: Plastics Suppliers, Inc.
    Inventors: Edward Carl Tweed, Henry Mike Stephens, Theodore Emil Riegert
  • POLYLACTIC ACID SHRINK FILMS AND METHODS OF CASTING SAME
    Publication number: 20110260355
    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: July 7, 2011
    Publication date: October 27, 2011
    Inventors: Edward Carl TWEED, Joseph B. MCDANIEL
  • Polylactic acid shrink films and methods of casting same
    Patent number: 7998545
    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: Grant
    Filed: May 7, 2010
    Date of Patent: August 16, 2011
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Joseph B. McDaniel
  • POLYLACTIC ACID SHRINK FILMS AND METHODS OF CASTING SAME
    Publication number: 20100213202
    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: May 7, 2010
    Publication date: August 26, 2010
    Inventors: Edward Carl TWEED, Joseph B. McDaniel
  • Polylactic acid shrink films and methods of casting same
    Patent number: 7713601
    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: Grant
    Filed: November 20, 2006
    Date of Patent: May 11, 2010
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Joseph B. McDaniel
  • POLYLACTIC ACID BLOWN FILM AND METHOD OF MANUFACTURING SAME
    Publication number: 20100056689
    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 6, 2009
    Publication date: March 4, 2010
    Inventors: Edward Carl TWEED, Henry Mike Stephens, Theodore Emil Riegert
  • Polylactic acid blown film and method of manufacturing same
    Patent number: 7615183
    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: Grant
    Filed: November 3, 2006
    Date of Patent: November 10, 2009
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Henry Mike Stephens, Theodore Emil Riegert
  • POLYLACTIC ACID BLOWN FILM AND METHOD OF MANUFACTURING SAME
    Publication number: 20080280081
    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: July 25, 2008
    Publication date: November 13, 2008
    Inventors: Edward Carl TWEED, Henry Mike STEPHENS, Theodore Emil RIEGERT