Patents by Inventor Myeung Il KIM

Myeung Il KIM 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).

  • Patent number: 11952490
    Abstract: The present disclosure relates to a polycarbonate resin composition, and more particularly, to a polycarbonate resin composition containing 90 wt % to 99 wt % of a polycarbonate resin, 0.3 wt % to 0.7 wt % of an anthraquinone-based black dye, and 0.2 wt % to 1.0 wt % of an acrylic polymeric chain extender, and a molded article containing the same.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: April 9, 2024
    Assignees: HYUNDAI MOBIS CO., LTD., LG CHEM, LTD.
    Inventors: Hyoung Taek Kang, Keun Hyung Lee, Young Min Kim, Moo Seok Lee, Myeung Il Kim, Jae Chan Park
  • Publication number: 20230167294
    Abstract: A thermoplastic resin composition contains a styrene-methyl methacrylate-butyl acrylate copolymer and thus exhibits improved blackness and scratch resistance, and a molded article including the same.
    Type: Application
    Filed: November 28, 2022
    Publication date: June 1, 2023
    Inventors: Min Jin Choi, Choon Ho Lee, Jin Sol Park, Myeung Il Kim
  • Patent number: 11623987
    Abstract: The present disclosure relates to a polycarbonate resin composition having excellent light-reflecting and light-shielding properties, and an automotive molded article produced using the same. The polycarbonate resin composition includes: 60 to 70 wt % of a polycarbonate resin; 4 to 10 wt % of a rubber-modified vinyl-based graft copolymer; 3 to 11 wt % of a styrene-based copolymer; 15 to 25 wt % of titanium dioxide; and 2 to 3 wt % of a mineral filler.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: April 11, 2023
    Assignees: HYUNDAI MOBIS CO., LTD., LG CHEM, LTD.
    Inventors: Jae Joon Chang, Myeung Il Kim, Jae Hwan Kim, Jin Sol Park, Soo Min Lee
  • Publication number: 20220041859
    Abstract: The present disclosure relates to a polyester-based resin composition and a molded article manufactured using the same. More particularly, the present disclosure relates to a polyester-based resin composition including 93 to 99.5% by weight of a polybutylene terephthalate resin; 0.1 to 3% by weight of a polar group-containing lubricant; and 0.1 to 2% by weight of an antioxidant and a molded article manufactured using the polyester-based resin composition.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 10, 2022
    Inventors: Gun KO, Soo Min LEE, Yi Seul JUN, Myeung Il KIM, Jun Ki PARK, Jin Sol PARK, Hee Jae HWANG
  • Publication number: 20220033651
    Abstract: The present disclosure relates to a polycarbonate resin composition, and more particularly, to a polycarbonate resin composition containing 90 wt % to 99 wt % of a polycarbonate resin, 0.3 wt % to 0.7 wt % of an anthraquinone-based black dye, and 0.2 wt % to 1.0 wt % of an acrylic polymeric chain extender, and a molded article containing the same.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 3, 2022
    Inventors: Hyoung Taek KANG, Keun Hyung LEE, Young Min KIM, Moo Seok LEE, Myeung Il KIM, Jae Chan PARK
  • Publication number: 20220010130
    Abstract: The present disclosure relates to a light transmissive molded article including a base layer molded from a thermoplastic resin composition and a coating layer formed on at least one surface of the base layer, wherein peak energy PEA is equal to or greater than 40 J when impact energy of 140 J is applied with a rod having a diameter of 12.7 mm and a thickness of 3.0 mm by ASTM D3763, wherein, when being exposed at 90° C. for 500 hours, a color difference ?E1 based on color coordinates (L*0, a*0, b*0) of a CIE LAB color space before the exposure and color coordinates (L*A, a*A, b*A) of the CIE LAB color space after the exposure satisfies Equation 1 below, and light transmittance T0 before the exposure and light transmittance TA after the exposure satisfy Equation 2 below: ?E1?2.0??[Equation 1] 0.95?TA/T0?1.05.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 13, 2022
    Applicants: HYUNDAI MOBIS CO., LTD., LG CHEM, LTD.
    Inventors: Jae Joon CHANG, Moo Seok LEE, Myeung Il KIM, Soo Min LEE, Young Min KIM
  • Publication number: 20210040313
    Abstract: The present disclosure relates to a polycarbonate resin composition having excellent light-reflecting and light-shielding properties, and an automotive molded article produced using the same. The polycarbonate resin composition includes: 60 to 70 wt % of a polycarbonate resin; 4 to 10 wt % of a rubber-modified vinyl-based graft copolymer; 3 to 11 wt % of a styrene-based copolymer; 15 to 25 wt % of titanium dioxide; and 2 to 3 wt % of a mineral filler.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 11, 2021
    Inventors: Jae Joon CHANG, Myeung Il KIM, Jae Hwan KIM, Jin Sol PARK, Soo Min LEE
  • Patent number: 9663651
    Abstract: The present invention relates to a high-gloss polymethylmethacrylate-acrylic copolymer alloy composition and a molded article. According to the present invention, provided are a high-gloss polymethylmethacrylate-acrylic copolymer alloy composition which provides improved surface gloss and transparency (color) while providing mechanical strength, workability, and scratch resistance required in the high-gloss polymethylmethacrylate-acrylic copolymer alloy composition by combining a specific amount of an acrylic impact modifier, as an impact modifier of an alloy of a polymethylmethacrylate resin and an acrylic copolymer, with a scratch modifier and are economically efficient by omitting a process after injection (painting process), and a molded article obtained from the same.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: May 30, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Min Hee Kim, Sung Ho Lee, Myeung Il Kim, Jae Hwan Kim, Min Ho Jeong
  • Publication number: 20150159013
    Abstract: A thermoplastic polycarbonate resin composition may include about 50 to about 70 wt % of a polycarbonate resin; about 5 to about 20 wt % of a vinyl cyanide compound-conjugated diene-vinyl aromatic hydrocarbon copolymer; about 10 to about 30 wt % of a polyester resin; about 3 to about 15 wt % of a maleimide-based copolymer; about 2 to about 10 wt % of an impact modifier; and about 0.1 to about 1.0 wt % of a nucleating agent, wherein the polycarbonate resin has a melt index of about 2 to about 20 g/10 min (300° C., 2.16 kg). The thermoplastic polycarbonate resin composition has excellent chemical resistance and mechanical properties.
    Type: Application
    Filed: July 2, 2014
    Publication date: June 11, 2015
    Inventors: Jae Joon Chang, Hyeon Don Kim, Yong Chun, Myeung Il Kim, Jong Kuk Choi, Yong Kim, Sung Ho Lee, Dae Yong Ok
  • Patent number: 9045633
    Abstract: A thermoplastic polycarbonate resin composition may include about 50 to about 70 wt % of a polycarbonate resin; about 5 to about 20 wt % of a vinyl cyanide compound-conjugated diene-vinyl aromatic hydrocarbon copolymer; about 10 to about 30 wt % of a polyester resin; about 3 to about 15 wt % of a maleimide-based copolymer; about 2 to about 10 wt % of an impact modifier; and about 0.1 to about 1.0 wt % of a nucleating agent, wherein the polycarbonate resin has a melt index of about 2 to about 20 g/10 min (300° C., 2.16 kg). The thermoplastic polycarbonate resin composition has excellent chemical resistance and mechanical properties.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: June 2, 2015
    Assignees: Hyundai Mobis Co., Ltd., LG Chem. Ltd.
    Inventors: Jae Joon Chang, Hyeon Don Kim, Yong Chun, Myeung Il Kim, Jong Kuk Choi, Yong Kim, Sung Ho Lee, Dae Yong Ok
  • Patent number: 8829086
    Abstract: Disclosed is a glass fiber-reinforced polycarbonate flame-retardant resin composition which comprises (A) 50 to 75% by weight of polycarbonate having a melt index of 22 g/10 min or more (300° C., 1.2 kg), (B) 3 to 15% by weight of a rubber-modified styrene-based graft copolymer, (C) 3 to 10% by weight of a bulk copolymer of an aromatic vinyl compound and a vinyl cyan compound, (D) 1 to 10% by weight of an ethylene acrylate-based copolymer, (E) 10 to 25% by weight of glass fiber, and (F) 5 to 20% by weight of an aromatic phosphate ester-based compound, and thus advantageously exhibits superior flowability, flame retardancy, hardness, impact resistance and appearance qualities.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: September 9, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jong Kuk Choi, Yong Kim, Myeung Il Kim, Dae Young Ok, Sung Tae Ahn
  • Publication number: 20140114001
    Abstract: Disclosed is a glass fiber-reinforced polycarbonate flame-retardant resin composition which comprises (A) 50 to 75% by weight of polycarbonate having a melt index of 22 g/10 min or more (300° C., 1.2 kg), (B) 3 to 15% by weight of a rubber-modified styrene-based graft copolymer, (C) 3 to 10% by weight of a bulk copolymer of an aromatic vinyl compound and a vinyl cyan compound, (D) 1 to 10% by weight of an ethylene acrylate-based copolymer, (E) 10 to 25% by weight of glass fiber, and (F) 5 to 20% by weight of an aromatic phosphate ester-based compound, and thus advantageously exhibits superior flowability, flame retardancy, hardness, impact resistance and appearance qualities.
    Type: Application
    Filed: November 6, 2013
    Publication date: April 24, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Jong Kuk CHOI, Yong KIM, Myeung Il KIM, Dae Yong OK, Sung Tae AHN