Patents by Inventor Lei (Steve) Yang

Lei (Steve) Yang 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).

  • AQUEOUS DISPERSION AND POLYMER MODIFIED CEMENT-BASED COATING COMPOSITION THEREOF
    Publication number: 20220348502
    Abstract: An aqueous dispersion and uses therefor. The aqueous dispersion includes a Component (a), Component (b) and Component (c). Where Component (a) is a polymer prepared by the polymerization of monomers comprising a vinyl ester and an ethylene, where Component (b) is an acrylate-based polymer and where Component (c) is water. A film that is formed from the aqueous dispersion has a glass transition temperature of less than or equal to ?7° C. The aqueous dispersion the polymer of the Component (a) has a pot life of longer than or equal to 4 hours after being mixed with cement. Where Component (a) is present in an amount of higher than 35%, based on the total weight of the aqueous dispersion and Component (b) is present in an amount of less than or equal to 20%, based on the total weight of the aqueous dispersion.
    Type: Application
    Filed: June 28, 2019
    Publication date: November 3, 2022
    Applicant: Wacker Chemie AG
    Inventors: Yun (Helen) Li, Lei (Steve) Yang, Yizheng (Josef) Gong, Honggang (Henry) Chen, Hu (Vincent) Yuan