Patents by Inventor Thomas Veariel

Thomas Veariel 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: 20070019190
    Abstract: Method and systems for online analysis of a polymeric material within a mixing device are provided. In certain embodiments, the methods and systems subject the polymeric material to Raman spectroscopy analysis. The Raman spectroscopy provides analysis of polymer properties that may include melt index, density, viscosity, molecular weight, molecular weight distribution, weight ratios of different polymers comprising the polymeric material, additive concentrations, crosslinking agent concentrations, scissoring agent concentrations, and combinations thereof. The spectroscopy results can be used to provide process control to adjust operating parameters of the mixing device and/or an associated polymerization process. The mixing device may be an extruder. The methods and systems may also include a processor for evaluating the results of the Raman analysis and automatically adjusting the mixing device and/or polymerization processes.
    Type: Application
    Filed: July 22, 2005
    Publication date: January 25, 2007
    Inventors: David Marrow, David Yahn, Thomas Veariel
  • Publication number: 20060038315
    Abstract: Methods of tailoring polyethylenes are contemplated utilizing 0.5 to 7.95 volume percent oxygen containing gases. The tailoring occurs in a melt-conveying zone of a mixer/extruder, and not in the feed or melting zones of a mixer/extruder. The effect of tailoring is to increase elasticity (G?/G?) of the polyethylenes more than 10 percent over similar polyethylenes that are extruded/mixed in the substantial absence of oxygen of oxygen containing gases.
    Type: Application
    Filed: July 19, 2005
    Publication date: February 23, 2006
    Inventors: Herbert Tunnell, Porter Shannon, Pradeep Shirodkar, Dongming Li, Thomas Veariel
  • Publication number: 20050074609
    Abstract: Melt fracture is reduced, without the necessity of polymer processing-aid additives specifically designed to alleviate exit region surface melt fracture phenomenon, by heating at least a portion of the die through which the polymer is extruded. The die exit region is maintained at a temperature above the bulk melt temperature of the polymer extruded through the die exit hole.
    Type: Application
    Filed: November 25, 2003
    Publication date: April 7, 2005
    Inventors: Thomas Veariel, Costas Gogos, David Todd, Bainian Qian