Patents by Inventor Libby Xiaowei Hu

Libby Xiaowei Hu 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).

  • Fluorinated copolymers
    Patent number: 8809209
    Abstract: A stain resistant, oil and water repellent composition comprising a copolymer prepared from fluorinated methacrylate, carbonate methacrylate, and methacrylic acid or salt thereof, a method of providing stain resistance, oil and water repellency to substrates, and a treated substrate.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: August 19, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, Siddhartha Shenoy, Libby Xiaowei Hu
  • FLUORINATED COPOLYMERS
    Publication number: 20120156417
    Abstract: A stain resistant, oil and water repellent composition comprising a copolymer prepared from fluorinated methacrylate, carbonate methacrylate, and methacrylic acid or salt thereof, a method of providing stain resistance, oil and water repellency to substrates, and a treated substrate.
    Type: Application
    Filed: November 21, 2011
    Publication date: June 21, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, Siddhartha Shenoy, Libby Xiaowei Hu
  • Process for preparing polyester composite materials
    Patent number: 8071677
    Abstract: A process is provided for preparing polyester composite materials, comprising polymerizing at least one polyester precursor in the presence of filler microparticles and/or nanoparticles and organosilane having nucleophilic functionality. The organosilane is added as a distinct ingredient. The polyester composites so prepared have low acid end group content, thus improved hydrolytic and melt stability and improved elongation at break.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: December 6, 2011
    Inventors: Jiazhong Chen, Tao He, Libby Xiaowei Hu, Yongqing Huang, Suniti Moudgil
  • PROCESS FOR PREPARING POLYESTER COMPOSITE MATERIALS
    Publication number: 20100152377
    Abstract: A process is provided for preparing polyester composite materials, comprising polymerizing at least one polyester precursor in the presence of filler microparticles and/or nanoparticles and organosilane having nucleophilic functionality. The organosilane is added as a distinct ingredient. The polyester composites so prepared have low acid end group content, thus improved hydrolytic and melt stability and improved elongation at break.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Inventors: JIAZHONG CHEN, TAO HE, LIBBY XIAOWEI HU, YONGQING HUANG, SUNITI MOUDGIL