Patents by Inventor Nam Jib PARK

Nam Jib 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: 10329423
    Abstract: The present invention relates to a modified poly(arylene ether) resin composition. More particularly, the present invention relates to a modified poly(arylene ether) resin composition including 10 to 40% by weight of a poly(arylene ether) resin, 30 to 70% by weight of a polyamide resin, 1 to 20% by weight of a polyolefin based resin, 1 to 10% by weight of a compatibilizer, and 1 to 20% by weight of an impact modifier, and a molded article manufactured using the same. The modified poly(arylene ether) resin composition according to the present invention exhibits reduction of property change due to moisture and provides low specific gravity and superior impact strength, heat resistance, and property balance.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 25, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Nam Jib Park, Sang Ho Lee, Se Yeong Ju, Soo Min Lee, Jong Kuk Choi, Sung Ho Lee
  • Patent number: 10301503
    Abstract: The present invention relates to a poly(arylene ether) resin composition and a cable coated with the same. More particularly, the present invention relates to a poly(arylene ether) resin composition, including 20 to 40% by weight of a poly(arylene ether) resin, 15 to 35% by weight of a low-molecular weight styrene-based block copolymer having a weight-average molecular weight of 90,000 g/mol or less, 10 to 30% by weight of a high-molecular weight styrene-based block copolymer having a weight-average molecular weight of 95,000 g/mol or more, 1 to 20% by weight of a flame retardant, and 0 to 20% by weight of an additive. In accordance with the present invention, a poly(arylene ether) resin composition having superior flame retardancy, tensile strength, flexibility, extrusion processability, elongation, and appearance characteristics and a cable coated with the same are provided.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: May 28, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hwan Lim, Nam Jib Park, Gun Ko, Soo Min Lee, Sang Wook Na, Byung Wook Lee
  • Patent number: 10072149
    Abstract: Disclosed is a poly(arylene ether) resin composition, and more specifically, a modified poly(arylene ether) resin composition including a poly(arylene ether) resin, a poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, a polyamide resin, a polyolefin resin, and an encapsulating agent, wherein the polyolefin resin is encapsulated by the encapsulating agent with the poly(arylene ether) resin and the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, and a molded article produced therefrom. The disclosed composition has an effect of providing a modified poly(arylene ether) resin composition which has less change in physical properties caused by moisture, and has low specific gravity and superior impact strength, weatherability and balance in physical properties.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 11, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Nam Jib Park, Sang Ho Lee, Se Yeong Ju, Sung Ho Lee, Sung Tae Ahn
  • Patent number: 9944792
    Abstract: A modified poly(arylene ether) resin composition includes a mixed resin that includes a poly(arylene ether) resin, a styrene-based resin and a polyolefin resin; a flame retardant; and mineral oil. A weight-average molecular weight of the mineral oil is 460 to 1,000 g/mol. A wire is manufactured using the modified poly(arylene ether) resin composition.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 17, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hwan Lim, Jong Kuk Choi, Sang Ho Lee, Nam Jib Park, Soo Min Lee, Sung Ho Lee
  • Patent number: 9890282
    Abstract: Disclosed are a flame retardant thermoplastic resin composition suitable for preparing an electric wire, etc. by enhancing extrudability of a resin composition without hindering flame retardancy of the resin composition, and an electric wire comprising the same. The flame retardant thermoplastic resin composition comprises a matrix resin that comprises 20% to 40% by weight of a poly arylene ether resin, 20% to 40% by weight of a vinyl aromatic resin and 5% to 17% by weight of a polypropylene resin comprising a rubber ingredient, and 10% to 30% by weight of a flame retardant, based on a total weight of the resin composition.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: February 13, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Sung Hwan Lim, Soo Min Lee, Jong Kuk Choi, Sung Ho Lee, Eung Soo Kim, Sang Ho Lee, Nam Jib Park
  • Patent number: 9822252
    Abstract: Disclosed are a fire retardant thermoplastic resin composition suitable for preparing an electric wire, etc. by enhancing extrudability of a resin composition without hindering fire retardancy of the resin composition, and an electric wire comprising the same. The fire retardant thermoplastic resin composition comprises a matrix resin that comprises 20 to 35% by weight of a poly arylene ether resin, 20 to 35% by weight of a vinyl aromatic resin and 5 to 20% by weight of an olefin-based resin comprising a rubber ingredient, 1 to 10% by weight of a room-temperature liquid-type fire retardant, and 8 to 20% by weight of an ancillary fire retardant, based on 100% by weight of a mixture of a poly arylene ether resin, a vinyl aromatic resin, an olefin-based resin, a room-temperature liquid-type fire retardant and an ancillary fire retardant.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: November 21, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Sung Hwan Lim, Jong Kuk Choi, Sang Ho Lee, Nam Jib Park, Soo Min Lee, Sung Ho Lee
  • Publication number: 20170306175
    Abstract: The present invention relates to a poly(arylene ether) resin composition and a cable coated with the same. More particularly, the present invention relates to a poly(arylene ether) resin composition, including 20 to 40% by weight of a poly(arylene ether) resin, 15 to 35% by weight of a low-molecular weight styrene-based block copolymer having a weight-average molecular weight of 90,000 g/mol or less, 10 to 30% by weight of a high-molecular weight styrene-based block copolymer having a weight-average molecular weight of 95,000 g/mol or more, 1 to 20% by weight of a flame retardant, and 0 to 20% by weight of an additive. In accordance with the present invention, a poly(arylene ether) resin composition having superior flame retardancy, tensile strength, flexibility, extrusion processability, elongation, and appearance characteristics and a cable coated with the same are provided.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 26, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Sung Hwan LIM, Nam Jib PARK, Gun KO, Soo Min LEE, Sang Wook NA, Byung Wook LEE
  • Publication number: 20170198140
    Abstract: The present invention relates to a modified poly(arylene ether) resin composition. More particularly, the present invention relates to a modified poly(arylene ether) resin composition including 10 to 40% by weight of a poly(arylene ether) resin, 30 to 70% by weight of a polyamide resin, 1 to 20% by weight of a polyolefin based resin, 1 to 10% by weight of a compatibilizer, and 1 to 20% by weight of an impact modifier, and a molded article manufactured using the same. The modified poly(arylene ether) resin composition according to the present invention exhibits reduction of property change due to moisture and provides low specific gravity and superior impact strength, heat resistance, and property balance.
    Type: Application
    Filed: February 12, 2016
    Publication date: July 13, 2017
    Inventors: Nam Jib PARK, Sang Ho LEE, Se Yeong JU, Soo Min LEE, Song Kuk CHOI, Sung Ho LEE
  • Publication number: 20170174884
    Abstract: Disclosed is a modified poly(arylene ether) resin composition and more specifically, are a modified poly(arylene ether) resin composition including a poly(arylene ether) resin, a poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, a polyamide resin, a polyolefin resin, and an encapsulating agent, wherein the polyolefin resin is encapsulated by the encapsulating agent with the poly(arylene ether) resin and the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, and a molded article produced therefrom. The present invention has an effect of providing a modified poly(arylene ether) resin composition which has less change in physical properties caused by moisture, and has low specific gravity and superior impact strength, weatherability and balance in physical properties.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 22, 2017
    Applicant: LG CHEM LTD.
    Inventors: Nam Jib PARK, Sang Ho LEE, Se Yeong JU, Sung Ho LEE, Sung Tae AHN
  • Patent number: 9631091
    Abstract: Disclosed are a flame retardant poly(arylene ether) resin composition and a flame retardant non-crosslinked cable. According to the present invention, provided are a flame retardant poly(arylene ether) resin composition to provide flexibility, flame retardancy, productivity, extrusion processability, etc. while maintaining heat resistance, and a flame retardant non-crosslinked cable manufactured using the composition.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: April 25, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Sung Hwan Lim, Nam Jib Park, Sang Ho Lee, Soo Min Lee, Jong Kuk Choi, Sang Wook Na
  • Publication number: 20160362551
    Abstract: A modified poly(arylene ether) resin composition includes a mixed resin that includes a poly(arylene ether) resin, a styrene-based resin and a polyolefin resin; a flame retardant; and mineral oil. A weight-average molecular weight of the mineral oil is 460 to 1,000 g/mol. A wire is manufactured using the modified poly(arylene ether) resin composition.
    Type: Application
    Filed: February 27, 2015
    Publication date: December 15, 2016
    Inventors: Sung Hwan LIM, Jong Kuk CHOI, Sang Ho LEE, Nam Jib PARK, Soo Min LEE, Sung Ho LEE
  • Publication number: 20160251514
    Abstract: Disclosed are a flame retardant thermoplastic resin composition suitable for preparing an electric wire, etc. by enhancing extrudability of a resin composition without hindering flame retardancy of the resin composition, and an electric wire comprising the same. The flame retardant thermoplastic resin composition comprises a matrix resin that comprises 20% to 40% by weight of a poly arylene ether resin, 20% to 40% by weight of a vinyl aromatic resin and 5% to 17% by weight of a polypropylene resin comprising a rubber ingredient, and 10% to 30% by weight of a flame retardant, based on a total weight of the resin composition.
    Type: Application
    Filed: February 25, 2015
    Publication date: September 1, 2016
    Inventors: Sung Hwan LIM, Soo Min LEE, Jong Kuk CHOI, Sung Ho LEE, Eung Soo KIM, Sang Ho LEE, Nam Jib PARK
  • Publication number: 20160024303
    Abstract: Disclosed are a fire retardant thermoplastic resin composition suitable for preparing an electric wire, etc. by enhancing extrudability of a resin composition without hindering fire retardancy of the resin composition, and an electric wire comprising the same. The fire retardant thermoplastic resin composition comprises a matrix resin that comprises 20 to 35% by weight of a poly arylene ether resin, 20 to 35% by weight of a vinyl aromatic resin and 5 to 20% by weight of an olefin-based resin comprising a rubber ingredient, 1 to 10% by weight of a room-temperature liquid-type fire retardant, and 8 to 20% by weight of an ancillary fire retardant, based on 100% by weight of a mixture of a poly arylene ether resin, a vinyl aromatic resin, an olefin-based resin, a room-temperature liquid-type fire retardant and an ancillary fire retardant.
    Type: Application
    Filed: February 27, 2015
    Publication date: January 28, 2016
    Inventors: Sung Hwan LIM, Jong Kuk CHOI, Sang Ho LEE, Nam Jib PARK, Soo Min LEE, Sung Ho LEE
  • Publication number: 20160017146
    Abstract: Disclosed are a flame retardant poly(arylene ether) resin composition and a flame retardant non-crosslinked cable. According to the present invention, provided are a flame retardant poly(arylene ether) resin composition to provide flexibility, flame retardancy, productivity, extrusion processability, etc. while maintaining heat resistance, and a flame retardant non-crosslinked cable manufactured using the composition.
    Type: Application
    Filed: December 10, 2014
    Publication date: January 21, 2016
    Inventors: Sung Hwan LIM, Nam Jib PARK, Sang Ho LEE, Soo Min LEE, Jong Kuk CHOI, Sang Wook NA