Patents by Inventor Yaming Niu

Yaming Niu 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).

  • Color and Heat Stable Polycarbonate Compositions and Methods of Making
    Publication number: 20120202034
    Abstract: Provided herein are branched polycarbonate resin compositions that withstand discoloration and increased melt viscosity when exposed to elevated temperatures. These compositions are useful in the manufacture of various shaped, formed and/or molded articles.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 9, 2012
    Inventors: Jean-Francois Morizur, Yaming Niu, Thomas Evans
  • White light-shielding compositions and articles comprising same
    Patent number: 7928168
    Abstract: A polymer composition is provided which is white and opaque (i.e. shields from light). The polymer composition comprises a blend of (i) a silicon-free polycarbonate polymer and (ii) a polycarbonate-polysiloxane copolymer; a whitener such as titanium dioxide; and (iii) a non-white colorant such as carbon black. The resulting composition, when molded and measured at a thickness of 0.75 mm, has an L* of greater than 80 and a % T of less than 1%. The composition also has good impact strength at low temperatures and good stability during processing.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: April 19, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Huihui Li, Sriramakrishna Maruvada, Yaming Niu, Jong-Hyun Park, Jingwu Yang
  • WHITE LIGHT-SHIELDING COMPOSITIONS AND ARTICLES COMPRISING SAME
    Publication number: 20080230751
    Abstract: A polymer composition is provided which is white and opaque (i.e. shields from light). The polymer composition comprises a blend of (i) a silicon-free polycarbonate polymer and (ii) a polycarbonate-polysiloxane copolymer; a whitener such as titanium dioxide; and (iii) a non-white colorant such as carbon black. The resulting composition, when molded and measured at a thickness of 0.75 mm, has an L* of greater than 80 and a % T of less than 1%. The composition also has good impact strength at low temperatures and good stability during processing.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 25, 2008
    Applicant: General Electric Company
    Inventors: Huihui Li, Sriramakrishna Maruvada, Yaming Niu, Jong-Hyun Park, Jingwu Yang