Patents by Inventor Zheng-Zheng Zhuang

Zheng-Zheng Zhuang 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).

  • STABILIZATION OF POLYMERIC STRUCTURES
    Publication number: 20130011544
    Abstract: A method for stabilizing a polymeric structure against thermo-oxidative degradation is described. A polymeric core structure is provided with a skin layer that contains a skin resin in which the skin resin at least partially envelops a portion of the core structure. The skin structure then provides a barrier that thereby stabilizes the portion of the structure that is enveloped. The skin resin is made from a treated polyarylene sulfide.
    Type: Application
    Filed: March 16, 2011
    Publication date: January 10, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Joel M. Pollino, Lakshmi Krishnamurthy, Joachim C. Ritter, Robert John Duff, Yefim Brun, Zheng-Zheng Zhuang, Zuohong Yin