Patents by Inventor Chun-Ho Park

Chun-Ho Park 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: 11525053
    Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, a styrene-based monomer unit, and a vinyl cyan-based monomer unit; a first styrene-based copolymer including a C1 to C3 alkyl-substituted styrene-based monomer unit and a vinyl cyan-based monomer unit; and a second styrene-based copolymer including an unsubstituted styrene-based monomer unit and a vinyl cyan-based monomer unit. The thermoplastic resin composition is remarkably excellent in heat resistance, chemical resistance, and appearance characteristics while maintaining basic properties.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: December 13, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Da Eun Sung, Yong Yeon Hwang, Chun Ho Park, Yong Hee An, Jeong Min Jang
  • Publication number: 20220372268
    Abstract: The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition includes 100 parts by weight of styrene-based resins; 0.5 to 5 parts by weight of a first polyamide resin having a melting temperature (Tm) of 230° C. or less; and 0.5 to 10 parts by weight of a second polyamide resin having a melting temperature (Tm) of 250° C. or more. Both the first and second polyamide resins have a relative viscosity of 2.5 or less. The present disclosure advantageously provides a low-gloss thermoplastic resin composition having excellent aesthetics, such as softness, luxuriousness, and naturalness, due to uniform and low gloss, and improvement in surface texture while having mechanical properties and processability equal or superior to those of conventional ASA resins; and an exterior material including the low-gloss thermoplastic resin composition.
    Type: Application
    Filed: March 9, 2021
    Publication date: November 24, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Daeun SUNG, Tae Hoon KIM, Ho Hoon KIM, Chun Ho PARK, Yong Hee AN, Jeongmin JANG, Wangrae JOE
  • Publication number: 20220363888
    Abstract: The present disclosure relates to a thermoplastic resin composition and a molded article including the same. The thermoplastic resin composition includes 10 to 70% by weight of a graft copolymer (A) including an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 50 to 150 nm and an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 300 to 600 nm; and 30 to 90% by weight of a non-grafted copolymer (B) including a high molecular weight aromatic vinyl compound-vinyl cyanide compound copolymer (B-1) having a weight average molecular weight of 160,000 to 200,000 g/mol and a low molecular weight aromatic vinyl compound-vinyl cyanide compound copolymer (B-2) having a weight average molecular weight of 80,000 g/mol or more and less than 160,000 g/mol.
    Type: Application
    Filed: May 26, 2021
    Publication date: November 17, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Wangrae JOE, Daeun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Jeongmin JANG
  • Patent number: 11499046
    Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer having an average particle diameter of 50.0 to 90.0 nm; a matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, specifically, a thermoplastic resin composition which has improved properties in terms of elongation, processability, weather resistance, colorability, hardness, chemical resistance, scratch resistance, a whitening phenomenon, surface gloss and appearance quality while having excellent basic properties.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: November 15, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Chun Ho Park, Yong Yeon Hwang, Da Eun Sung, Yong Hee An, Jeong Min Jang
  • Patent number: 11492437
    Abstract: The present invention relates to a method of preparing an ASA graft copolymer, a method of preparing a thermoplastic resin composition including the ASA graft copolymer, and a method of manufacturing a molded article using the thermoplastic resin composition.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: November 8, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Min Jung Kim, Yong Yeon Hwang, Hyun Taek Oh, Bong Keun Ahn, Chun Ho Park, Eun Soo Kang, Yong Hee An, Jang Won Park
  • Publication number: 20220348759
    Abstract: A thermoplastic resin composition including 100 parts by weight of a base resin including 0.5 to 45% by weight of a graft copolymer (A-1) including acrylate rubber having an average particle diameter of 50 to 150 nm, an aromatic vinyl compound, and a vinyl cyanide compound, 20 to 80% by weight of a graft copolymer (A-2) including acrylate rubber having an average particle diameter of 151 to 600 nm, an aromatic vinyl compound, and a vinyl cyanide compound, and 10 to 45% by weight of an ?-methylstyrene-based copolymer (B) having a weight average molecular weight of 60,000 to 180,000 g/mol; and 0.5 to 10 parts by weight of an ultra-high molecular weight copolymer (C) having a weight average molecular weight of 1,000,000 to 12,000,000 g/mol. A method of preparing the thermoplastic resin composition and a molded article including the thermoplastic resin composition are also disclosed.
    Type: Application
    Filed: June 3, 2021
    Publication date: November 3, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Yong Hee AN, Tae Hoon KIM, Chun Ho PARK, Daeun SUNG, Wangrae JOE, Jeongmin JANG
  • Publication number: 20220340747
    Abstract: A thermoplastic resin composition and a molded article including the same are disclosed in which the thermoplastic resin composition includes 100 parts by weight of a base resin including an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer; and 0.5 to 10 parts by weight of a matting agent having a refractive index of 1.46 to 1.53, and a molded article including the thermoplastic resin composition, wherein the thermoplastic resin composition satisfies Equations 1 and 2 below: G?20,??[Equation 1] wherein G denotes the gloss of a sheet having a size of 0.15 T as measured at 60° using a gloss meter, Hz<Tt,??[Equation 2] wherein Hz and Tt denote the haze (%) and total light transmittance (%) of a sheet having a size of 0.15 T, respectively.
    Type: Application
    Filed: December 17, 2020
    Publication date: October 27, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Chun Ho PARK, Tae Hoon KIM, Daeun SUNG, Yong Hee AN, Wangrae JOE, Ho Hoon KIM, Jeongmin JANG
  • Publication number: 20220332936
    Abstract: A thermoplastic resin composition and a molded article including the same can include 100 parts by weight of a base resin including 10 to 50% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.3 to 0.5 ?m, 5 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.05 ?m or more and less than 0.3 ?m, and 20 to 65% by weight of an aromatic vinyl polymer (B), and 0.5 to 12 parts by weight of a polyamide (C). The thermoplastic resin composition can have a solvent resistance of 15 days or more.
    Type: Application
    Filed: December 18, 2020
    Publication date: October 20, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Chun Ho PARK, Tae Hoon KIM, Daeun SUNG, Yong Hee AN, Wangrae JOE, Ho Hoon KIM, Jeongmin JANG
  • Patent number: 11447500
    Abstract: A thienopyridine derivative compound represented by Formula 1 or pharmaceutically acceptable salts thereof have an excellent inhibitory effect on protein kinase activity, and accordingly, pharmaceutical compositions containing the thienopyridine compound can be usefully used for the prevention or treatment of a disease associated with the activity of a protein kinase.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 20, 2022
    Assignee: WELLMARKER BIO CO., LTD.
    Inventors: Hyunho Lee, Chun-Ho Park, Sun Chul Hur, Jai-Hee Moon, Jae-Sik Shin, Seung-Woo Hong, Yoon-Sun Park, Joseph Kim, Sohee Lee, Hyojin Kim, Hyebin Park
  • Publication number: 20220288043
    Abstract: A thienopyridine derivative compound of Formula 1 or pharmaceutically acceptable salts thereof have an excellent inhibitory effect on protein kinase activity, and accordingly, pharmaceutical compositions containing the thienopyridine compound can be usefully used for the prevention or treatment of a disease associated with the activity of a protein kinase. Therefore, a use of the compound or a pharmaceutically acceptable salt thereof in treating a disease associated with an activity of a protein kinase in a subject in need thereof is disclosed.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 15, 2022
    Applicant: WELLMARKER BIO CO, LTD.
    Inventors: Hyunho LEE, Chun-Ho PARK, Sun Chul HUR, Jai-Hee MOON, Jae-Sik SHIN, Seung-Woo HONG, Yoon-Sun PARK, Joseph KIM, Sohee LEE, Hyojin KIM, Hyebin PARK
  • Patent number: 11401409
    Abstract: The present invention relates to a thermoplastic resin composition, including a first graft copolymer including an alkyl (meth)acrylate-based polymer-derived unit, an aromatic vinyl-based monomer-derived unit, and a vinyl cyanide-based monomer-derived unit; a copolymer including an aromatic vinyl-based monomer-derived unit and a vinyl cyanide-based monomer-derived unit; a polyester-based elastomer; and a phthalate-based plasticizer.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: August 2, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Yong Hee An, Yong Yeon Hwang, Chun Ho Park, Jang Won Park
  • Patent number: 11377547
    Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer; a first matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; a second matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, wherein the first matrix copolymer and the second matrix copolymer have different weight-average molecular weights, specifically, a thermoplastic resin composition which allows high gloss, high hardness, high weather resistance and reduced whitening to be realized.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: July 5, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Chun Ho Park, Yong Yeon Hwang, Da Eun Sung, Yong Hee An, Jeong Min Jang
  • Publication number: 20220177692
    Abstract: Provided is a thermoplastic resin composition which includes: a first graft copolymer including a first acrylic rubber polymer; a second graft copolymer including a second acrylic rubber polymer; and a first styrene-based copolymer including an alkyl-substituted styrene-based monomer unit and an acrylonitrile-based monomer unit, wherein the first acrylic rubber polymer has an average particle diameter larger than that of the second acrylic rubber polymer, the first graft copolymer is included in a larger amount than the second graft copolymer, and the sum of the first graft copolymer and the second graft copolymer is 22 parts by weight or less with respect to 100 parts by weight of the sum of the first graft copolymer, the second graft copolymer, and the first styrene-based copolymer.
    Type: Application
    Filed: January 27, 2021
    Publication date: June 9, 2022
    Inventors: Da Eun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Wang Rae JOE, Ho Hoon KIM, Jeong Min JANG
  • Patent number: 11331260
    Abstract: The present invention may provide an oil in water (O/W) cosmetic composition having water resistance and ease of facial cleansing, using an A-B-A type triblock copolymer which is included in the cosmetic, and thus may adjust the surfactant power. Further, it is possible to provide a method for imparting water resistance and ease of facial cleansing, using the A-B-A type triblock copolymer.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 17, 2022
    Assignee: COSMAX, INC.
    Inventors: Ji Hyun Lee, Jun Bae Lee, Sun Young Kim, Sung Yong Kim, So Youn An, Chun Ho Park, Myeong Sam Park
  • Publication number: 20220135786
    Abstract: Disclosed is an ASA resin composition, a molded article including the ASA resin composition, and a method of manufacturing the molded article. Also disclosed is an ASA resin composition including 20 to 47% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer containing acrylate rubber having an average particle diameter of 50 to 150 nm as a core; 23 to 55% by weight of an alkyl methacrylate-aromatic vinyl compound-vinyl cyanide compound copolymer; and 25 to 45% by weight of a poly(alkyl methacrylate) resin, a molded article including the ASA resin composition, and a method of manufacturing the molded article. Also disclosed is an ASA resin composition having excellent colorability and transparency even at a processing thickness of a predetermined value while having excellent mechanical properties and processability, a molded article including the ASA resin composition, and a method of manufacturing the molded article are provided.
    Type: Application
    Filed: September 28, 2020
    Publication date: May 5, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Yong Hee AN, Tae Hoon KIM, Chun Ho PARK, Da Eun SUNG, Wangrae CHO, Ho Hoon KIM, Jeongmin JANG
  • Patent number: 11286383
    Abstract: Provided is a thermoplastic resin composition which includes: a first graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, a C1 to C3 alkyl-substituted styrene-based monomer unit, and a vinyl cyan-based monomer unit; a second graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, an alkyl-unsubstituted styrene-based monomer unit, and a vinyl cyan-based monomer unit; a first styrene-based copolymer including a C1 to C3 alkyl-substituted styrene-based monomer unit and a vinyl cyan-based monomer unit; a second styrene-based copolymer including an alkyl-unsubstituted styrene-based monomer unit and a vinyl cyan-based monomer unit; and an olefin-based copolymer including a C1 to C3 alkyl (meth)acrylate-based monomer unit. The thermoplastic resin composition exhibits remarkably excellent chemical resistance and remarkably excellent appearance characteristics while maintaining basic properties.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: March 29, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Da Eun Sung, Yong Yeon Hwang, Chun Ho Park, Yong Hee An, Jeong Min Jang
  • Publication number: 20220033633
    Abstract: The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.05 to 0.15 ?m as a core, an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.3 to 0.6 ?m as a core, an aromatic vinyl polymer (B-1), and a heat-resistant aromatic vinyl polymer (B-2); and 0.5 to 10 parts by weight of a polyolefin elastomer (C). Within this range, the thermoplastic resin composition may have a heat deflection temperature (HDT) of 89° C. or more.
    Type: Application
    Filed: September 11, 2020
    Publication date: February 3, 2022
    Inventors: Jeongmin JANG, Tae Hoon KIM, Chun Ho PARK, Da Eun SUNG, Yong Hee AN, Wangrae CHO, Ho Hoon KIM
  • Patent number: 11240662
    Abstract: Various embodiments related to an electronic device and a method by which the electronic device transmits and receives authentication information are presented, and according to one embodiment, the electronic device comprises: a first wireless communication circuit for supporting a Bluetooth protocol; a second wireless communication circuit for supporting a cellular wireless protocol; a third wireless communication circuit for supporting near field communication (NFC); a fourth wireless communication circuit for supporting a WiFi protocol; a camera exposed through a second part of a housing; a processor arranged in the housing and electrically connected to a display, the first wireless communication circuit, the second wireless communication circuit, the third wireless communication circuit, the fourth wireless communication circuit, and the camera; and a memory arranged in the housing and electrically connected to the processor, wherein the memory can store instructions for causing, during execution thereof,
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: February 1, 2022
    Inventors: Chun-Ho Park, Jun-Sik Kwon
  • Publication number: 20220010122
    Abstract: The present invention relates to a thermoplastic resin composition and a molded article including the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of 10 to 30% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) including an acrylate rubber having an average particle diameter of 0.05 to 0.15 ?m, 20 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) including an acrylate rubber having an average particle diameter of 0.3 to 0.5 ?m, 0 to 35% by weight of an aromatic vinyl polymer (B), and 10 to 60% by weight of a polymethacrylate (C); and 0.5 to 10 parts by weight of a polyamide (D).
    Type: Application
    Filed: August 25, 2020
    Publication date: January 13, 2022
    Inventors: Da Eun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Wangrae CHO, Ho Hoon KIM, Jeongmin JANG
  • Publication number: 20210317133
    Abstract: A thienopyridine derivative compound represented by Formula 1 or pharmaceutically acceptable salts thereof have an excellent inhibitory effect on protein kinase activity, and accordingly, pharmaceutical compositions containing the thienopyridine compound can be usefully used for the prevention or treatment of a disease associated with the activity of a protein kinase.
    Type: Application
    Filed: March 8, 2019
    Publication date: October 14, 2021
    Applicant: WELLMARKER BIO CO., LTD.
    Inventors: Hyunho LEE, Chun-Ho PARK, Sun Chul HUR, Jai-Hee MOON, Jae-Sik SHIN, Seung-Woo HONG, Yoon-Sun PARK, Joseph KIM, Sohee LEE, Hyojin KIM, Hyebin PARK