Patents Examined by Stephen Reith
  • Color and heat stable polycarbonate compositions and methods of making
    Patent number: 9234096
    Abstract: Provided herein are branched polycarbonate resin compositions The compositions include a first heat stabilizer, a second heat stabilizer, a branched polycarbonate, a cyclic siloxane, and a flame retardant salt. The compositions 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: Grant
    Filed: February 3, 2011
    Date of Patent: January 12, 2016
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Jean-Francois Morizur, Yaming Niu, Thomas Evans