Patents by Inventor Woosoo CHOE

Woosoo CHOE 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).

  • Publication number: 20240384094
    Abstract: The present disclosure relates to a polycarbonate resin composition, a method of preparing the same, and a molded article including the same. The polycarbonate resin composition includes: 20 to 75% by weight of a polycarbonate (A-1) having a melt index (at 300° C., 1.2 kg load) of 15 to 25 g/10 min; 5 to 25% by weight of a polysiloxane-polycarbonate copolymer (B); 5 to 45% by weight of glass fiber (C); 2 to 12% by weight of a liquid phosphorus-based flame retardant (D); and 1 to 7% by weight of a phosphazene compound (E).
    Type: Application
    Filed: July 27, 2023
    Publication date: November 21, 2024
    Inventors: Su Kyoung LEE, Young Wan KIM, Hee Chan YANG, Ryul LEE, Minsu KIM, Woosoo CHOE
  • Publication number: 20230399509
    Abstract: The present disclosure relates to a polycarbonate resin composition including 8 to 25% by weight of a polycarbonate (A) having a melt index (300° C., 1.2 kg) of 5 to 15 g/10 min; 45 to 77% by weight of a polycarbonate (B) having a melt index (300° C., 1.2 kg) of greater than 15 g/10 min and 25 g/10 min or less; 8 to 25% by weight of a polysiloxane-polycarbonate copolymer (C); 4.5 to 9% by weight of a room-temperature liquid phosphorus-based flame retardant (D); and 1.5 to 5.5% by weight of a phosphazene compound (E), a method of preparing the polycarbonate resin composition, and a molded article including the polycarbonate resin composition.
    Type: Application
    Filed: February 16, 2023
    Publication date: December 14, 2023
    Inventors: Su Kyoung LEE, Woosoo CHOE, Ryul LEE, Minsu KIM, Choongho KIM, Young Wan KIM, Hee Chan YANG