Patents by Inventor Yeon Wook CHUNG

Yeon Wook CHUNG 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).

  • Thermoplastic resin composition and molded article using the same
    Patent number: 10717858
    Abstract: A thermoplastic resin composition and a molded article produced using the same. The thermoplastic resin composition includes: a styrene-based copolymer resin; a rubber-modified acrylic graft copolymer; a silicone compound-containing branched copolymer; glass fibers; and metal particles, wherein a weight ratio of the branched copolymer to the glass fibers ranges from about 1:1 to about 6:1.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 21, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Min Kyoung Ham, Young Chul Kwon, Yeon Wook Chung, Dong Hui Chu
  • Thermoplastic resin composition and molded product comprising same
    Patent number: 10196519
    Abstract: A thermoplastic resin composition of the present invention comprises: a thermoplastic resin comprising a (meth)acrylic resin and an aromatic vinyl-based resin; and a siloxane compound represented by the chemical formula 1. The thermoplastic resin composition has excellent scratch resistance, mar resistance, colorability, appearance characteristics and the like.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: February 5, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Byeong Yeol Kim, Yoen Kyoung Kim, Dong Hyun Park, Yeon Wook Chung, Dong Hui Chu, Young Chul Kwon, Kang Yeol Park
  • Thermoplastic Resin Composition and Molded Product Comprising Same
    Publication number: 20170327688
    Abstract: A thermoplastic resin composition of the present invention comprises: a thermoplastic resin comprising a (meth)acrylic resin and an aromatic vinyl-based resin; and a siloxane compound represented by the chemical formula 1. The thermoplastic resin composition has excellent scratch resistance, mar resistance, colorability, appearance characteristics and the like.
    Type: Application
    Filed: November 3, 2015
    Publication date: November 16, 2017
    Inventors: Byeong Yeol KIM, Yoen Kyoung KIM, Dong Hyun PARK, Yeon Wook CHUNG, Dong Hui CHU, Young Chul KWON, Kang Yeol PARK
  • Thermoplastic Resin Composition and Molded Article Using the Same
    Publication number: 20170190895
    Abstract: A thermoplastic resin composition and a molded article produced using the same. The thermoplastic resin composition includes: a styrene-based copolymer resin; a rubber-modified acrylic graft copolymer; a silicone compound-containing branched copolymer; glass fibers; and metal particles, wherein a weight ratio of the branched copolymer to the glass fibers ranges from about 1:1 to about 6:1.
    Type: Application
    Filed: December 29, 2016
    Publication date: July 6, 2017
    Inventors: Min Kyoung HAM, Young Chul KWON, Yeon Wook CHUNG, Dong Hui CHU
  • Thermoplastic resin composition and molded article including the same
    Patent number: 9346942
    Abstract: A thermoplastic resin composition includes a thermoplastic resin including a polycarbonate resin; a siloxane compound represented by Formula 1; and surface-modified hydrophobic silica: wherein R1 and R2 are the same or different and are each independently C1 to C5 alkyl; R3 and R4 are the same or different and are each independently C2 to C10 alkylene; A1 and A2 are the same or different and are each independently a glycidoxy group, an epoxy group, an amine group, a hydroxyl group, a hydrogen atom, a vinyl group, a (meth)acryloyl group, or an aryl group; and n is an integer from 2 to 80. The thermoplastic resin composition can exhibit excellent properties in terms of impact resistance, heat resistance, scratch resistance, surface gloss, mar resistance, and the like.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 24, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yeon Wook Chung, Yong Hee Kang, Kyu Young Kim, Byeong Yeol Kim, Joong In Kim
  • Thermoplastic Resin Composition and Molded Article Including the Same
    Publication number: 20150148465
    Abstract: A thermoplastic resin composition includes a thermoplastic resin including a polycarbonate resin; a siloxane compound represented by Formula 1; and surface-modified hydrophobic silica: wherein R1 and R2 are the same or different and are each independently C1 to C5 alkyl; R3 and R4 are the same or different and are each independently C2 to C10 alkylene; A1 and A2 are the same or different and are each independently a glycidoxy group, an epoxy group, an amine group, a hydroxyl group, a hydrogen atom, a vinyl group, a (meth)acryloyl group, or an aryl group; and n is an integer from 2 to 80. The thermoplastic resin composition can exhibit excellent properties in terms of impact resistance, heat resistance, scratch resistance, surface gloss, mar resistance, and the like.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Inventors: Yeon Wook CHUNG, Yong Hee KANG, Kyu Young KIM, Byeong Yeol KIM, Joong In KIM