Patents by Inventor Caifeng Wang

Caifeng Wang 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).

  • Process for making crosslinkable polyurethane/acrylic hybrid dispersions
    Patent number: 9303181
    Abstract: The present invention provides a new process of preparation for PUA with superior mechanical performance, such as elongation, and tensile strength. The process is solvent free, smooth, and robust. PU prepolymer prepared according to the present invention has low viscosity, and contains no particulate DMPA.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 5, 2016
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Jiguang Zhang, Shouxue Guo, Yujiang Wang, Shaoguang Feng, Siyuan Jiang, Caifeng Wang
  • PROCESS FOR MAKING CROSSLINKABLE POLYURETHANE/ACRYLIC HYBRID DISPERSIONS
    Publication number: 20160009944
    Abstract: The present invention provides a new process of preparation for PUA with superior mechanical performance, such as elongation, and tensile strength. The process is solvent free, smooth, and robust. PU prepolymer prepared according to the present invention has low viscosity, and contains no particulate DMPA.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventors: Jiguang Zhang, Shouxue Guo, Yujiang Wang, Shaoguang Feng, Siyuan Jiang, Caifeng Wang
  • PROCESS FOR PREPARING TRANSPARENT/SEMI-TRANSPARENT COLOR DISPERSIONS AND THE COLOR DISPERSIONS MADE THEREOF
    Publication number: 20150065618
    Abstract: This invention relates to a process for preparing color dispersions comprising a first step of contacting water, a first colorant, and a polysaccharide selected from methylcellulose, hydropropylmethylcellulose, hydroxyethylmethylcellulose, hydroxybutylmethylcellulose, hydroxyethylethylcellulose, and the mixture thereof, to form a first colorant dispersion; a second step of contacting the first colorant dispersion with a protective composition comprising an aqueous dispersion of polymer particles, clay, and a peptizing agent to form a dispersion of protected first colorant particles; an optional third step of repeating the first step and the second step with a second colorant that is different from the first colorant to form a dispersion of protected second colorant particles; and an optional fourth step of mixing the dispersions of protected first and second colorant particles to form a multi-color dispersion.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 5, 2015
    Inventors: Dong Yun, Yujiang Wang, Hui Liu, Caifeng Wang, Siyuan Jiang
  • PROCESS FOR PREPARING POLYURETHANE ACRYLIC HYBRID DISPERSIONS
    Publication number: 20140323638
    Abstract: The present invention provides a new process for making polyurethane/acrylic (PUA) hybrid dispersions, specifically, it relates to a chemical hybrid method for preparing stable, super durable and water whitening resistant PUA hybrid dispersions. The present invention further provides a PUA hybrid dispersion prepared according to the above process and a coating composition comprising the PUA hybrid dispersion.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 30, 2014
    Inventors: Jiguang Zhang, Shouxue Guo, Yujiang Wang, Shaoguang Feng, Siyuan Jiang, Caifeng Wang, Fujun Lu
  • NEW PROCESS FOR MAKING CROSSLINKABLE POLYURETHANE /ACRYLIC HYBRID DISPERSIONS
    Publication number: 20140323639
    Abstract: The present invention provides a new process of preparation for PUA with superior mechanical performance, such as elongation, and tensile strength. The process is solvent free, smooth, and robust. PU prepolymer prepared according to the present invention has low viscosity, and contains no particulate DMPA.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 30, 2014
    Applicants: DOW GLOBAL TECHNOLOGIES LLC, ROHM AND HAAS COMPANY
    Inventors: Jiguang Zhang, Shouxue Guo, Yujiang Wang, Shaoguang Feng, Siyuan Jiang, Caifeng Wang