Patents by Inventor Seong-lyong Kim

Seong-lyong 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).

  • Publication number: 20210221996
    Abstract: Provided is a thermoplastic resin composition which includes: a first copolymer including an acrylic graft copolymer; a second copolymer including an alkyl-substituted styrene-based monomer unit, a vinyl cyanide-based monomer unit, and a (meth)acrylate-based monomer unit; and a third copolymer including an alkyl-unsubstituted styrene-based monomer unit, a vinyl cyanide-based monomer unit, and a (meth)acrylate-based monomer unit. According to the present invention, a thermoplastic resin composition and a thermoplastic resin molded article, which are excellent in heat resistance, colorability, and scratch resistance, can be provided.
    Type: Application
    Filed: February 10, 2020
    Publication date: July 22, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Joon Hwi JO, Seong Lyong KIM, Tae Hoon KIM, Dae Woo LEE, Jae Bum SEO
  • Publication number: 20210179840
    Abstract: Provided is a heat-resistant resin composition which includes: a base resin including: a graft copolymer prepared by graft polymerization of a diene-based rubber polymer with an aromatic vinyl-based monomer and a vinyl cyan-based monomer; a first styrene-based copolymer including an aromatic vinyl-based unit and a vinyl cyan-based unit; a second styrene-based copolymer including a maleimide-based unit, an aromatic vinyl-based unit, and a vinyl cyan-based unit; and a carbonate-based polymer; and a third styrene-based copolymer including an aromatic vinyl-based unit and a maleic acid-based unit.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 17, 2021
    Inventors: Do Hyeong KIM, Ho NAMGUNG, Seong Lyong KIM, Dae San JUNG
  • Publication number: 20210047507
    Abstract: The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. More specifically, the present invention relates to a thermoplastic resin composition including 100 parts by weight of a base resin including a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer and an ?-methyl styrene compound-vinyl cyanide compound copolymer and 0.4 to 3 parts by weight of an alkoxylated polyethyleneimine, a method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition. The thermoplastic resin composition according to the present invention has improved chemical resistance to solvents such as thinner without degradation in fluidity and mechanical properties, and thus has excellent paintability.
    Type: Application
    Filed: November 7, 2019
    Publication date: February 18, 2021
    Inventors: Seunghun HAN, Suk Jo CHOI, Jinoh NAM, Seong Lyong KIM
  • Publication number: 20200369864
    Abstract: The present invention relates to a heat-resistant resin composition including a first copolymer including a conjugated diene-based polymer, units derived from an aromatic vinyl-based monomer, and units derived from a vinyl cyan-based monomer; a second copolymer including units derived from an aromatic vinyl-based monomer and units derived from a vinyl cyan-based monomer and having a glass transition temperature of 115° C. or more; and a third copolymer including units derived from an aromatic vinyl-based monomer and units derived from a vinyl cyan-based monomer, wherein the second copolymer has a linear shape, and the third copolymer has a branched shape and a branched degree of 2 to 8.
    Type: Application
    Filed: December 11, 2018
    Publication date: November 26, 2020
    Inventors: Seung Cheol RYOO, Dae San JUNG, Seong Lyong KIM, Jin Oh NAM
  • Publication number: 20200339799
    Abstract: Provided is a heat-resistant resin composition which includes: a graft copolymer prepared by graft polymerization of a diene-based rubber polymer with an aromatic vinyl-based monomer and a vinyl cyan-based monomer; a first styrene-based copolymer including a maleimide-based unit and an aromatic vinyl-based unit; a second styrene-based copolymer including a vinyl cyan-based unit and an aromatic vinyl-based unit; and a third styrene-based copolymer including a vinyl cyan-based unit and an aromatic vinyl-based unit, wherein the second styrene-based copolymer and the third styrene-based copolymer include a vinyl cyan-based unit in mutually different amounts.
    Type: Application
    Filed: December 4, 2018
    Publication date: October 29, 2020
    Inventors: Do Hyeong KIM, Ho NAMGUNG, Seong Lyong KIM, Dae San JUNG
  • Publication number: 20200283614
    Abstract: Provided is a thermoplastic resin composition which comprises: a first copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a second copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a third copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; a fourth copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; and a fifth copolymer comprising maleimide-based units, aromatic vinyl-based units, and vinyl cyan-based units, wherein the first and second copolymers comprise alkyl acrylate-based rubber polymers with mutually different average particle sizes, and the third and fourth copolymers have mutually different weight average molecular weights.
    Type: Application
    Filed: November 29, 2018
    Publication date: September 10, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Tae Hoon KIM, Seong Lyong KIM, Kyung Jae KWON, Joon Hwi JO, Kyu Seong JEONG
  • Publication number: 20200239682
    Abstract: The present invention relates to a resin composition including (1) 80 wt % to 99.8 wt % of a butadiene-based graft copolymer mixture; (2) 0.1 wt % to 10 wt % of a graft copolymer including a derived unit from a polyolefin-based polymer, a derived unit from a vinyl cyanide compound and a derived unit from an aromatic vinyl-based compound; and (3) 0.1 wt % to 10 wt % of an alpha olefin-based copolymer.
    Type: Application
    Filed: November 23, 2018
    Publication date: July 30, 2020
    Inventors: Seung Cheol RYOO, Sung Hwan YOON, Hyun Ki KIM, Seong Lyong KIM, Jin Oh NAM
  • Patent number: 10364346
    Abstract: Disclosed are an ABS-based resin composition and a molded article manufactured therefrom. More particularly, the ABS-based resin composition according to the present disclosure includes (a) 22.5 to 50% by weight of a vinyl cyan compound-conjugated diene-based rubber-like polymer-aromatic vinyl compound copolymer resin; (b) 47.5 to 75% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer resin; (c) 1 to 6% by weight of a polyether ester amide resin; and (d) 1.5 to 3% by weight of an ethoxylated alkylamine-based antistatic agent, thereby providing a high humidification amount and less deformation. Accordingly, the present disclosure relates to an ABS-based resin composition suitable for application to disks for air washers, humidifiers, and the like, and a molded article manufactured therefrom.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: July 30, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Seung Cheol Ryoo, Soo Kyeong Lee, Seong Lyong Kim
  • Patent number: 10364329
    Abstract: The present invention relates to a thermoplastic resin composition. More particularly, the present invention relates a thermoplastic resin composition including 100 parts by weight of a base resin including (a) an aromatic vinyl compound-conjugated diene-based compound-vinyl cyan compound copolymer and (b) an aromatic vinyl compound-vinyl cyan compound copolymer; and (c) greater than 0.05 parts by weight and less than 11 parts by weight of a polyolefin oxide-based triblock copolymer, and a molded article including the same. In accordance with the present invention, the thermoplastic resin composition having superior chemical resistance and paintability with identical or superior impact strength, fluidity, and heat resistance, to conventional thermoplastic resin compositions, and a molded article including the same are provided.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: July 30, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Seung Hun Han, Dae San Jung, Seong Lyong Kim, Hyun Ho Joo, Soo Kyeong Lee
  • Publication number: 20190177523
    Abstract: The present invention relates to a thermoplastic resin composition, a method of preparing the same, and an injection-molded article including the same. More particularly, the present invention relates to a thermoplastic resin composition having superior vibration welding properties along with ABS-based resin-specific impact resistance, heat resistance, and the like due to inclusion of an ABS-based graft copolymer including a conjugated diene-based rubber polymer having an average particle diameter of 0.25 to 0.35 ?m; a rubber-modified graft copolymer including a diene-based rubber polymer having an average particle diameter of 0.6 to 10 ?m and prepared by continuous bulk polymerization; and a matrix resin, and an injection-molded article including the thermoplastic resin composition.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 13, 2019
    Inventors: Dae San JUNG, Seung Hun HAN, Seong Lyong KIM
  • Patent number: 10214642
    Abstract: The present disclosure relates to a thermoplastic resin composition and a molded article manufactured therefrom. More particularly, in accordance the present disclosure, a thermoplastic resin composition exhibiting superior colorability, fluidity, scratch resistance, heat resistance, and weatherability and a molded article manufactured therefrom are provided.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: February 26, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Tea Hyun Kim, Tae Hoon Kim, Seong Lyong Kim, In Hyeok Park
  • Patent number: 10189984
    Abstract: The present invention relates to a thermoplastic resin composition and a molded article manufactured thereofrom. In accordance with the present invention, a thermoplastic resin composition providing higher chemical resistance with respect to a blowing agent while providing the same impact strength, gloss, and vacuum moldability as existing resin compositions when used to produce an inner case of a refrigerator, and a molded article manufactured from the same are provided.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 29, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Seo Hwa Kim, Seong Lyong Kim, Tae Hoon Kim, Ju Hyeong Lee
  • Patent number: 10160851
    Abstract: The present invention relates to a styrene-based thermoplastic resin composition with improved flowability and, more specifically, a thermoplastic resin composition, which retains heat resistance and improved flowability by introducing a low-molecular weight styrene-acrylonitrile (SAN) resin into an acrylonitrile-butadiene-styrene (ABS) resin, which has enhanced heat resistance through the addition of a heat-resistant resin, and to a molded article into which the composition is molded. According to the resin composition, there can be obtained: a thermal resin composition, which has an improvement in the flowability of the heat-resistant ABS resin and retains non-deteriorating or favorable heat resistance and impact resistance; and a molded article.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: December 25, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Dae San Jung, Seung Hun Han, Seong Lyong Kim, Hyun Ho Joo, Ju Hyeong Lee, Soo Kyeong Lee
  • Patent number: 10106677
    Abstract: The present invention relates to a thermoplastic resin composition with excellent chemical resistance and, more specifically, to a resin composition for blow molding and a molded product obtained by molding the same, the composition maintaining the balance of flowability and impact resistance and improving chemical resistance by controlling the glass transition temperature (Tg) and the weight average molecular weight (Mw) of an ?-methylstyrene (AMS)-based heat-resistant resin in a copolymer of vinyl cyanide compound-rubbery polymer-aromatic vinyl compound, having reinforced heat resistance, particularly, in an acrylonitrile-butadiene-styrene (ABS) copolymer resin. According to the present invention, an ABS resin composition for blow molding, having excellent chemical resistance while maintaining the balance of flowability, impact resistance and heat resistance to be of at least the same level, and a molded product obtained by applying the same can be obtained.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: October 23, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Soo Kyeong Lee, Seung Cheol Ryoo, Seong Lyong Kim
  • Publication number: 20180265690
    Abstract: The present disclosure relates to a thermoplastic resin composition and a molded article manufactured therefrom. More particularly, in accordance the present disclosure, a thermoplastic resin composition exhibiting superior colorability, fluidity, scratch resistance, heat resistance, and weatherability and a molded article manufactured therefrom are provided.
    Type: Application
    Filed: November 22, 2016
    Publication date: September 20, 2018
    Inventors: Tea Hyun KIM, Tae Hoon KIM, Seong Lyong KIM, In Hyeok PARK
  • Publication number: 20180002522
    Abstract: The present invention relates to a thermoplastic resin composition and a molded article manufactured thereofrom. In accordance with the present invention, a thermoplastic resin composition providing higher chemical resistance with respect to a blowing agent while providing the same impact strength, gloss, and vacuum moldability as existing resin compositions when used to produce an inner case of a refrigerator, and a molded article manufactured from the same are provided.
    Type: Application
    Filed: November 30, 2016
    Publication date: January 4, 2018
    Inventors: Seo Hwa KIM, Seong Lyong KIM, Tae Hoon KIM, Ju Hyeong LEE
  • Publication number: 20170342223
    Abstract: The present invention relates to a thermoplastic resin composition. More particularly, the present invention relates a thermoplastic resin composition including 100 parts by weight of a base resin including (a) an aromatic vinyl compound-conjugated diene-based compound-vinyl cyan compound copolymer and (b) an aromatic vinyl compound-vinyl cyan compound copolymer; and (c) greater than 0.05 parts by weight and less than 11 parts by weight of a polyolefin oxide-based triblock copolymer, and a molded article including the same. In accordance with the present invention, the thermoplastic resin composition having superior chemical resistance and paintability with identical or superior impact strength, fluidity, and heat resistance, to conventional thermoplastic resin compositions, and a molded article including the same are provided.
    Type: Application
    Filed: November 11, 2016
    Publication date: November 30, 2017
    Inventors: Seung Hun HAN, Dae San JUNG, Seong Lyong KIM, Hyun Ho JOO, Soo Kyeong LEE
  • Publication number: 20170292017
    Abstract: The present invention relates to a styrene-based thermoplastic resin composition with improved flowability and, more specifically, a thermoplastic resin composition, which retains heat resistance and improved flowability by introducing a low-molecular weight styrene-acrylonitrile (SAN) resin into an acrylonitrile-butadiene-styrene (ABS) resin, which has enhanced heat resistance through the addition of a heat-resistant resin, and to a molded article into which the composition is molded. According to the resin composition, there can be obtained: a thermal resin composition, which has an improvement in the flowability of the heat-resistant ABS resin and retains non-deteriorating or favorable heat resistance and impact resistance; and a molded article.
    Type: Application
    Filed: November 26, 2015
    Publication date: October 12, 2017
    Inventors: Dae San JUNG, Seung Hun HAN, Seong Lyong KIM, Hyun Ho JOO, Ju Hyeong LEE, Soo Kyeong LEE
  • Publication number: 20170260382
    Abstract: The present invention relates to a thermoplastic resin composition with excellent chemical resistance and, more specifically, to a resin composition for blow molding and a molded product obtained by molding the same, the composition maintaining the balance of flowability and impact resistance and improving chemical resistance by controlling the glass transition temperature (Tg) and the weight average molecular weight (Mw) of an ?-methylstyrene (AMS)-based heat-resistant resin in a copolymer of vinyl cyanide compound-rubbery polymer-aromatic vinyl compound, having reinforced heat resistance, particularly, in an acrylonitrile-butadiene-styrene (ABS) copolymer resin. According to the present invention, an ABS resin composition for blow molding, having excellent chemical resistance while maintaining the balance of flowability, impact resistance and heat resistance to be of at least the same level, and a molded product obtained by applying the same can be obtained.
    Type: Application
    Filed: November 24, 2015
    Publication date: September 14, 2017
    Inventors: Soo Kyeong LEE, Seung Cheol RYOO, Seong Lyong KIM
  • Publication number: 20170260386
    Abstract: Disclosed are an ABS-based resin composition and a molded article manufactured therefrom. More particularly, the ABS-based resin composition according to the present disclosure includes (a) 22.5 to 50% by weight of a vinyl cyan compound-conjugated diene-based rubber-like polymer-aromatic vinyl compound copolymer resin; (b) 47.5 to 75% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer resin; (c) 1 to 6% by weight of a polyether ester amide resin; and (d) 1.5 to 3% by weight of an ethoxylated alkylamine-based antistatic agent, thereby providing a high humidification amount and less deformation. Accordingly, the present disclosure relates to an ABS-based resin composition suitable for application to disks for air washers, humidifiers, and the like, and a molded article manufactured therefrom.
    Type: Application
    Filed: November 11, 2016
    Publication date: September 14, 2017
    Inventors: Seung Cheol RYOO, Soo Kyeong LEE, Seong Lyong KIM