Patents by Inventor Chen-Ann Huang

Chen-Ann Huang 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).

  • Water-borne polyurethane-modified cement composition
    Patent number: 5807431
    Abstract: A water-borne polyurethane modified cement composition is prepared from a dispersion of a water-dispersible polyurethane, a cross-linking agent, which is a polycarbodimide having N.dbd.C.dbd.N functional groups, and cement. Optionally, a water-reducing agent, and a surfactant can be added. The modified cement composition has higher tensile strength, elongation, and water resistance.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: September 15, 1998
    Assignee: Industrial Technology Research Institute
    Inventors: Fan-Jeng Tsai, Chen-Ann Huang, Hsiao-Chian Li