Patents by Inventor John DeMassa

John DeMassa 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).

  • Systems and compositions for color stabilization of polymer
    Patent number: 8287765
    Abstract: Systems and compositions have a three component antioxidant blend for extending color and clarity of a thermoplastic polymer. The antioxidant blend includes a zinc dithiocarbamate, a phenolic and a thioether with a weight ratio range of about 1-2:1-2:1-2. A loading level of the antioxidant blend is from about 0.01 wt. % to about 1 wt. % of the systems and compositions.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 16, 2012
    Assignee: R.T. Vanderbilt Company, Inc.
    Inventor: John DeMassa
  • Topical polyurethane foam oxidative photooxidative stabilizer
    Publication number: 20060231799
    Abstract: Compositions are disclosed for inhibiting oxidation and photooxidation in polyurethane foams. The compositions contain an antioxidant and a UV light inhibiting compound, along with an organic solvent or alternatively, water and an emulsifier.
    Type: Application
    Filed: April 19, 2006
    Publication date: October 19, 2006
    Applicant: R.T. Vanderbilt Company, Inc.
    Inventor: John DeMassa