Patents by Inventor Qwei Lu

Qwei Lu 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).

  • Thermoplastic Polyurethane Composition
    Publication number: 20200332117
    Abstract: The present invention relates to novel thermoplastic polyurethane (TPU) compositions that contain alkylene substituted spirocyclic compounds as chain extender, aliphatic polyisocyanate, and polyester polyol. The present invention provides for TPUs which exhibit high temperature and chemical resistance.
    Type: Application
    Filed: July 2, 2020
    Publication date: October 22, 2020
    Inventors: Romina Marin Bernabe, Umit G. Makal, Qwei Lu
  • Thermoplastic Polyurethane Composition
    Publication number: 20180258283
    Abstract: The present invention relates to novel thermoplastic polyurethane (TPU) compositions that contain alkylene substituted spirocyclic compounds as chain extender, aliphatic polyisocyanate, and polyester polyol. The present invention provides for TPUs which exhibit high temperature and chemical resistance.
    Type: Application
    Filed: December 2, 2015
    Publication date: September 13, 2018
    Applicant: Lubrizol Advanced Materials
    Inventors: Romina Marin Bernabe, Umit G. Makal, Qwei Lu