Patents by Inventor Ryul Lee

Ryul Lee 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
  • Publication number: 20220193968
    Abstract: The present disclosure provides a marbled molded product obtained by injection-molding, in a mold cavity, a mixture including: a thermoplastic resin including one selected from the group of polycarbonate, acrylonitrile-butadiene-styrene, polybutylene terephthalate, polypropylene, and combinations thereof; and fine pigment particles, where a pattern forming a texture is formed on the surface of the injection-molded product. The present disclosure also provides a system for evaluating a marble color effect of a marbled molded product, the system including: a light source unit, an image-capturing unit, an image processing unit and an evaluation factor determination unit.
    Type: Application
    Filed: August 20, 2020
    Publication date: June 23, 2022
    Inventors: Jung Jin HAN, Su Kyoung LEE, Sung Hak BAE, Ryul LEE, Yong Ju LEE, Hyung Sok KIM, Sang Choll HAN, Cho Rok MOON, Byoung Jin KWAK
  • Patent number: 10354774
    Abstract: The present invention relates to a composition for forming a conductive pattern that enables forming conductive micropatterns on various polymer resin products or resin layers by a simplified process without deformation of the polymer resin products or resin layers, and enables effectively satisfying requirements of the art, and a resin structure having a conductive pattern.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 16, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Han Nah Jeong, Ha Na Lee, Cheol-Hee Park, Chee-Sung Park, Jae Hyun Kim, Shin Hee Jun, Ryul Lee, Min Ji Kim
  • Patent number: 10294365
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting improved impact strength (impact resistance) and chemical resistance while including a glass fiber in a relatively small content, and a molded article formed therefrom.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: May 21, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Su Kyoung Lee, Min Ji Kim, Jong Hyun Lee, Ryul Lee, Sung Tae Ahn
  • Patent number: 10240038
    Abstract: The present invention provides a flame resistant polycarbonate-based resin composition and molded articles thereof, and specifically, a polycarbonate-based resin composition having excellent heat resistance and impact resistance and improved flame retardancy, and molded articles formed from the polycarbonate-based resin composition.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: March 26, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Moo Seok Lee, Ryul Lee
  • Patent number: 10240037
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more particularly, to a polycarbonate-based resin composition exhibiting low deformation characteristic, excellent impact strength, excellent appearance surface characteristic, and excellent flame retardancy, and a molded article formed therefrom.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: March 26, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Jong Hyun Lee, Su Kyoung Lee, Min Ji Kim, Ryul Lee, Sung Tae Ahn
  • Patent number: 10100196
    Abstract: Disclosed are a polycarbonate resin composition including 15 to 93% by weight of a polycarbonate-polyorganosiloxane copolymer; 0 to 70% by weight of a bisphenol-derived polycarbonate resin; 5 to 30% by weight of glass fiber surface-treated with epoxysilane; d) 1 to 5% by weight of a core-shell impact modifier; and e) 0.05 to 3% by weight of an epoxysilane additive and a polycarbonate resin composition, and a molded article manufactured therefrom. In accordance with the present disclosure, a polycarbonate resin composition and a molded article manufactured therefrom, and more particularly to a polycarbonate resin composition suitable for satisfying demand for larger area and slimmer electronic products, etc. while providing superior rigidity, chemical resistance, and impact resistance and aesthetic appearance, and a molded article manufactured therefrom are provided.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 16, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Su Kyoung Lee, Min Ji Kim, Jong Hyun Lee, Ryul Lee, Sung Tae Ahn
  • Patent number: 10081730
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting high fluidity and excellent chemical resistance and impact resistance, and a molded article formed therefrom.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: September 25, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Ryul Lee, Su Kyoung Lee, Min Ji Kim, Jong Hyun Lee, Sung Tae Ahn
  • Patent number: 10077360
    Abstract: The present invention relates to a polycarbonate resin composition. According to the present invention, a polycarbonate resin composition, which realizes a high whiteness degree, exhibits less discoloration due to superior heat stability during storage and processing, and has improved fluidity, laser reactivity, and plating adhesion, and a method of preparing the same are provided.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: September 18, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Min Ji Kim, Su Kyoung Lee, Ryul Lee, Sung Ho Lee, Jong Hyun Lee
  • Patent number: 10047223
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting high fluidity and excellent chemical resistance and impact resistance, and a molded article formed therefrom.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: August 14, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Ryul Lee, Su Kyoung Lee, Min Ji Kim, Jong Hyun Lee, Sung Tae Ahn
  • Publication number: 20170321014
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting improved impact strength (impact resistance) and chemical resistance while including a glass fiber in a relatively small content, and a molded article formed therefrom.
    Type: Application
    Filed: December 3, 2015
    Publication date: November 9, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Su Kyoung LEE, Min Ji KIM, Jong Hyun LEE, Ryul LEE, Sung Tae AHN
  • Publication number: 20170306146
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting high fluidity and excellent chemical resistance and impact resistance, and a molded article formed therefrom.
    Type: Application
    Filed: December 3, 2015
    Publication date: October 26, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Ryul LEE, Su Kyoung LEE, Min Ji KIM, Jong Hyun LEE, Sung Tae AHN
  • Publication number: 20170298222
    Abstract: The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more particularly, to a polycarbonate-based resin composition exhibiting low deformation characteristic, excellent impact strength, excellent appearance surface characteristic, and excellent flame retardancy, and a molded article formed therefrom.
    Type: Application
    Filed: December 3, 2015
    Publication date: October 19, 2017
    Inventors: Jong Hyun LEE, Su Kyuong LEE, Min Ji KIM, Ryul LEE, Sung Tae AHN
  • Publication number: 20170292019
    Abstract: The present invention provides a flame resistant polycarbonate-based resin composition and molded articles thereof, and specifically, a polycarbonate-based resin composition having excellent heat resistance and impact resistance and improved flame retardancy, and molded articles formed from the polycarbonate-based resin composition.
    Type: Application
    Filed: December 4, 2015
    Publication date: October 12, 2017
    Inventors: Moo Seok LEE, Ryul LEE
  • Publication number: 20170204265
    Abstract: Disclosed are a polycarbonate resin composition including 15 to 93% by weight of a polycarbonate-polyorganosiloxane copolymer; 0 to 70% by weight of a bisphenol-derived polycarbonate resin; 5 to 30% by weight of glass fiber surface-treated with epoxysilane; d) 1 to 5% by weight of a core-shell impact modifier; and e) 0.05 to 3% by weight of an epoxysilane additive and a polycarbonate resin composition, and a molded article manufactured therefrom. In accordance with the present disclosure, a polycarbonate resin composition and a molded article manufactured therefrom, and more particularly to a polycarbonate resin composition suitable for satisfying demand for larger area and slimmer electronic products, etc. while providing superior rigidity, chemical resistance, and impact resistance and aesthetic appearance, and a molded article manufactured therefrom are provided.
    Type: Application
    Filed: January 11, 2017
    Publication date: July 20, 2017
    Inventors: Su Kyoung LEE, Min Ji KIM, Jong Hyun LEE, Ryul LEE, Sung Tae AHN
  • Publication number: 20170140849
    Abstract: The present invention relates to a composition for forming a conductive pattern that enables forming conductive micropatterns on various polymer resin products or resin layers by a simplified process without deformation of the polymer resin products or resin layers, and enables effectively satisfying requirements of the art, and a resin structure having a conductive pattern.
    Type: Application
    Filed: August 3, 2015
    Publication date: May 18, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Han Nah JEONG, Ha Na LEE, Cheol-Hee PARK, Chee-Sung PARK, Jae Hyun KIM, Shin Hee JUN, Ryul LEE, Min Ji KIM
  • Patent number: 9650509
    Abstract: The present invention relates to a polycarbonate resin composition including both of silicone oil and olefin-based wax at a proper ratio and thus having improved dispersibility of titanium dioxide in the composition as well as high impact strength and melt index (moldability), and also relates to a polycarbonate molded article made of the polycarbonate resin composition. The polycarbonate resin composition according to the present invention includes silicone oil and olefin-based wax at a proper ratio and thus improves dispersibility of titanium dioxide which is added to the composition to give whiteness, while preserving high impact strength and melt index (moldability), so that crawling which is generated on the surface of a final product of polycarbonate molded article is prevented and the appearance property of the molded article is improved.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 16, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Su Kyoung Lee, Min Ji Kim, Ryul Lee, Sung Ho Lee
  • Patent number: 9580597
    Abstract: The present invention relates to a polycarbonate composition including a polycarbonate and an impact reinforcing agent, and an inorganic filler to improve a mechanical property thereof, and a copolycarbonate to solve a problem of appearance defect caused by including the inorganic filler.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 28, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Yoon Seon Jeong, Moo Seok Lee, Ryul Lee, Sung Tae Ahn, Ik Hwan Cho
  • Publication number: 20160340508
    Abstract: The present invention relates to a polycarbonate resin composition. According to the present invention, a polycarbonate resin composition, which realizes a high whiteness degree, exhibits less discoloration due to superior heat stability during storage and processing, and has improved fluidity, laser reactivity, and plating adhesion, and a method of preparing the same are provided.
    Type: Application
    Filed: December 1, 2015
    Publication date: November 24, 2016
    Applicant: LG CHEM, Ltd.
    Inventors: Min Ji KIM, Su Kyoung LEE, Ryul LEE, Sung Ho LEE, Jong Hyun LEE