Patents by Inventor Hong Gi Ahn

Hong Gi Ahn 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).

  • Polycarbonate-Polysiloxane Copolymer, and Method for Preparing Same
    Publication number: 20150057423
    Abstract: The present invention relates to a polycarbonate-polysiloxane copolymer containing a polysiloxane unit. The polycarbonate-polysiloxane copolymer of the present invention includes an aliphatic terminal having a specific carbon number, thereby having excellent impact properties at low temperature, and high transparency.
    Type: Application
    Filed: October 26, 2012
    Publication date: February 26, 2015
    Applicant: Cheil Industries Inc.
    Inventors: Jeung Gon Kim, Jung Woo Park, Chang Hong Ko, Tae Joon Park, Hong Gi Ahn