Patents by Inventor Zi Song Zhu

Zi Song Zhu 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).

  • COMPOSITION USEFUL FOR THE PREPARATION OF POLYURETHANE FOAMS
    Publication number: 20220098359
    Abstract: Described herein is a polyurethane foam prepared with certain polytetrahydrofurans and optional polyether polyols. The polyurethane foam is characterized by low hardness increase at low temperature as compared with conventional polyurethane foam, and is suitable for use in products which can be exposed to low temperature such as snow boots.
    Type: Application
    Filed: January 14, 2020
    Publication date: March 31, 2022
    Inventors: Bang Wei Xi, YingHao Liu, Zhen Peng Liang, Jin Lin Liu, Bo Chen, Ben Ben Shen, Zi Song Zhu