Patents by Inventor Donald Ridgway

Donald Ridgway 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).

  • Use of Thickening Agents as Polyurethane Amine Catalyst Diluents
    Publication number: 20150094387
    Abstract: The present disclosure relates to an amine catalyst composition for producing polyurethane foam. The amine catalyst composition includes an amine catalyst and a diluent containing a thickening agent and water. The use of such a diluent, in place of conventional glycols, reduces raw material and processing costs as well as environmental concerns during the production of polyurethane foam.
    Type: Application
    Filed: August 10, 2012
    Publication date: April 2, 2015
    Applicant: Huntsman Petrochemical LLC
    Inventors: Eugene P. Wiltz, JR., Donald Ridgway, Jennifer Chavez, Frank Rodriguez, Robert A. Grigsby, JR., Gwynne Whitcombe
  • Cure rebond binder
    Publication number: 20060035990
    Abstract: The present invention provides processes for producing re-bonded polyurethane foam constructs that are useful in applications such as carpet underlayments. According to the invention, a tertiary amine is employed as a catalyst either alone, or preferably in combination with other catalysts in a binder which comprises an organic isocyanate and a polyol. Inclusion of a tertiary amine as a catalyst dramatically increases production throughput.
    Type: Application
    Filed: August 11, 2005
    Publication date: February 16, 2006
    Applicant: Huntsman Petrochemical Corporation
    Inventors: Roger Hennington, Donald Ridgway, Robert Grigsby, Robert Sawitski, Jennifer Pratt