Patents by Inventor Sang-Hyun Hong

Sang-Hyun Hong 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: 11577496
    Abstract: A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 40 wt % to about 60 wt % of a polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 10 wt % of a maleic anhydride-modified olefin-based copolymer; about 5 wt % to about 20 wt % of calcium carbonate subjected to surface treatment with a silane compound; and about 20 wt % to about 40 wt % of glass fibers, wherein the silane compound includes a functional group comprising an amino group, an epoxy group, and/or a (meth)acryloxy group. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, and/or appearance, and the like.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 14, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Sang Hyun Hong
  • Patent number: 11565513
    Abstract: A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 15 wt % to about 49 wt % of an aromatic polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 30 wt % of a polyamide resin having a glass transition temperature of about 40° C. to about 120° C.; about 1 wt % to about 20 wt % of an olefin-based copolymer; and about 30 wt % to about 50 wt % of calcium carbonate. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, fluidity, and/or appearance, and the like.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: January 31, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Kyoung Tae Youm, Sang Hyun Hong
  • Patent number: 11524492
    Abstract: A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: about 15 wt % to about 49 wt % of an aromatic polyamide resin including a repeat unit represented by Formula 1 and a repeat unit represented by Formula 2 as defined in the specification; about 1 wt % to about 30 wt % of a polyamide resin having a glass transition temperature of about 40° C. to about 120° C.; about 1 wt % to about 20 wt % of an olefin-based copolymer; and about 30 wt % to about 50 wt % of calcium carbonate. The polyamide resin composition and the molded article produced using the same can have good properties in terms of plating adhesion, impact resistance, thermal resistance, fluidity, and/or appearance, and the like.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: December 13, 2022
    Assignee: Lotte Chemical Corporation
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Kyoung Tae Youm, Sang Hyun Hong
  • Publication number: 20220340698
    Abstract: The present invention relates to a composition for an encapsulant film, including an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and an encapsulant film using the same.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 27, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Jin Sam Gong, Eun Jung Lee, Young Woo Lee, Jung Ho Jun, Jin Kuk Lee, Sang Hyun Hong, Jong Gil Kim, Hye Ji Lee, Sang Wook Han
  • Patent number: 11355683
    Abstract: A thermoplastic resin composition includes: a polyester resin; a white pigment; a core-shell structured impact modifier; and a modified polyolefin resin. Exemplary compositions include polycyclohexylenedimethylene terephthalate (PCT) resin; titanium oxide; a core-shell structured impact modifier obtained by grafting methyl (meth)acrylate to the polydimethylsiloxane rubber core; and an ethylene-methacrylate copolymer. The thermoplastic resin composition is usable for the production of molded article as a reflector or reflector cup for a LED (light-emitting diode) that maintains reflectance at elevated temperature.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: June 7, 2022
    Assignee: Lotte Chemical Corporation
    Inventors: Tae Gon Kang, Chan Moo Park, Yoo Jin Jung, Yang Il Kim, Tae Soo Kim, Sang Hyun Hong
  • Patent number: 11312832
    Abstract: A thermoplastic resin composition and a molded article including the same. The thermoplastic resin composition includes: about 100 parts by weight of a thermoplastic resin; about 1 to about 30 parts by weight of an additive for laser direct structuring (LDS additive); about 0.01 to about 5 parts by weight of a hindered phenol-based compound; about 0.01 to about 10 parts by weight of a sodium phosphate salt; about 0.01 to about 5 parts by weight of a phosphite compound; about 0.01 to about 5 parts by weight of a sulfonate compound; and about 0.01 to about 10 parts by weight of a metal oxide, wherein a weight ratio of the hindered phenol-based compound, the sodium phosphate salt, the phosphite compound and the sulfonate compound to the metal oxide may range from about 2:1 to about 10:1.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: April 26, 2022
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jee Kwon Park, Ik Mo Kim, Nam Hyun Kim, Jung Ki Kim, Sang Hyun Hong
  • Patent number: 11274205
    Abstract: A polyamide resin composition includes an aromatic polyamide resin, an aliphatic polyamide resin, a polyacrylic acid, and glass fibers. The polyamide resin composition can have good properties in terms of heat resistance, long-term heat resistance stability, and/or appearance characteristics.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: March 15, 2022
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Sang Hwa Lee, Yeong Deuk Seo, Sang Hyun Hong
  • Publication number: 20220033643
    Abstract: A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a thermoplastic resin including a polyester resin; about 50-150 parts by weight of glass fibers; and about 1-10 parts by weight of a polyether-ester copolymer, wherein the polyether-ester copolymer has a melt volume flow rate (MVR) of about 30-120 cm3/10 min as measured under conditions of 230° C. and 2.16 kg based on ISO 1133. The thermoplastic resin composition is excellent in impact resistance, appearance characteristics, metal joining properties, and the like.
    Type: Application
    Filed: September 24, 2019
    Publication date: February 3, 2022
    Inventors: Min Soo LEE, Eric ARIFIN, Seon Hui LEE, Bong Jae LEE, Sang Hyun HONG
  • Patent number: 11220599
    Abstract: A thermoplastic resin composition includes: a polyester resin including a repeat unit represented by Formula 1 as described in the specification; glass fibers; a white pigment; an aromatic vinyl-olefin copolymer; and talc. The thermoplastic resin composition can have good properties in terms of reflectance, reflectance retention, impact resistance, and/or moldability.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: January 11, 2022
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Yang Il Kim, Sang Hwa Lee, Hyun Su Kim, Sang Hyun Hong
  • Patent number: 11208554
    Abstract: A thermally-conductive resin composition according to the present invention comprises: approximately 10-50 wt % polycarbonate resin; approximately 1-10 wt % glycol-modified polyester resin; approximately 1-15 wt % glass transition temperature depressing agent; approximately 5-20 wt % additive for laser direct structuring; approximately 10-35 wt % boron nitride having average particle size (D50) of approximately 10 ?m or greater; and approximately 10-30 wt % glass fiber having a non-circular cross-sectional surface.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 28, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jee Kwon Park, Yeong Deuk Seo, Jung Ki Kim, Yoo Jin Jung, Sang Hyun Hong
  • Patent number: 11208555
    Abstract: The present invention relates to a thermoplastic resin composition for a laser direct structuring process and a molded article produced therefrom. In one embodiment, the thermoplastic resin composition comprises: a polyamide resin; a polyester resin; a rubber-modified aromatic vinyl-based graft copolymer; an inorganic filler; and an additive for laser direct structuring.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: December 28, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Nam Hyun Kim, Sang Hyun Hong
  • Publication number: 20210380802
    Abstract: A thermoplastic resin composition according to the present invention comprises: about 100 parts by weight of a polycarbonate resin; about 5 to about 100 parts by weight of an inorganic filler; about 0.1 to about 2 parts by weight of a maleic anhydride-modified olefin-based copolymer; and about 0.1 to about 2 parts by weight of a phosphite compound represented by chemical formula 1. The thermoplastic resin composition is excellent in terms of chemical resistance, impact resistance, rigidity, physical property balance thereof, and the like.
    Type: Application
    Filed: December 11, 2019
    Publication date: December 9, 2021
    Inventors: Nam Hyun KIM, Bong Jae LEE, Young Mi KIM, Ik Mo KIM, Sang Hwa LEE, Sang Hyun HONG
  • Patent number: 11162005
    Abstract: Provided are a pressure-sensitive adhesive composition for an optical film, which has excellent optical compensation and stress relaxation properties without changing main properties such as endurance reliability and workability under a high temperature and/or high humidity condition to minimize a light leakage phenomenon caused by stress concentration of a protective film, and an optical member and a liquid crystal display device which include a pressure-sensitive adhesive layer manufactured using the same.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 2, 2021
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Kee Young Kim, Sung Soo Yoon, Sang Hyun Hong, Il Jin Kim
  • Patent number: 11136457
    Abstract: A thermoplastic resin composition and a molded article formed of the same includes: about 100 parts by weight of a polycarbonate resin; about 1 to about 20 parts by weight of a rubber modified aromatic vinyl copolymer resin; about 0.1 to about 2 parts by weight of a maleic anhydride modified olefin copolymer; and about 0.1 to about 2 parts by weight of a phosphite compound represented by Formula 1 as described in the present specification. The thermoplastic resin composition can have good properties in terms of chemical resistance, impact resistance, and balance therebetween.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 5, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Young Mi Kim, Nam Hyun Kim, Bong Jae Lee, Sang Hyun Hong
  • Patent number: 11130887
    Abstract: The present application relates to a pressure-sensitive adhesive composition, an optical laminate, a pressure-sensitive adhesive polarizing plate and a display device. In the present application, a pressure-sensitive adhesive composition having all excellent physical properties such as endurance reliability and interface adhesiveness and being capable of minimizing light leakage occurring under high temperature or high-temperature and humidity conditions can be provided. The pressure-sensitive adhesive composition of the present application can be used for an optical film such as a protective film and a polarizing plate.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 28, 2021
    Inventors: Han Na Chi, Sung Soo Yoon, Kee Young Kim, Sang Hyun Hong, Su Jee Kwon
  • Patent number: 11091634
    Abstract: The present invention relates to a thermoplastic resin composition and a molded product produced therefrom. In one embodiment, the thermoplastic resin composition comprises: a base resin including a polyphenylene ether resin and a rubber-reinforced polystyrene resin; a styrene-based block copolymer resin; and a hydrocarbon-based oil.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: August 17, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Kyoung Tae Youm, Yeong Deuk Seo, Sang Hyun Hong
  • Patent number: 11078360
    Abstract: A thermoplastic resin composition and a molded article formed using the same. The thermoplastic resin composition includes: a polycarbonate resin; a first polycarbonate-polysiloxane copolymer resin; a second polycarbonate-polysiloxane copolymer resin; and a glycol-modified polyester resin, wherein the first polycarbonate-polysiloxane copolymer resin includes a polysiloxane block having an average degree of polymerization of about 30 to about 45 and the second polycarbonate-polysiloxane copolymer resin includes a polysiloxane block having an average degree of polymerization of about 70 to about 100. The thermoplastic resin composition can have good properties in terms of transparency, impact resistance, chemical resistance, and/or hydrolysis resistance.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: August 3, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Nam Hyun Kim, Young Mi Kim, Bong Jae Lee, Sang Hyun Hong
  • Publication number: 20210214555
    Abstract: The polyamide resin composition of the present invention comprises: about 15 to about 49 wt % of an aromatic polyamide resin containing a repeating unit represented by chemical formula 1 and a repeating unit represented by chemical formula 2; about 1 to about 30 wt % of a polyamide resin having a glass transition temperature of about 40 to about 120° C.; about 1 to about 20 wt % of an olefin-based copolymer; about 5 to about 40 wt % of calcium carbonate; and about 5 to about 40 wt % of talc. The polyamide resin composition and the molded product formed therefrom are excellent in plating adhesion, impact resistance, stiffness, heat resistance, flowability, appearance characteristics, and the like.
    Type: Application
    Filed: May 21, 2019
    Publication date: July 15, 2021
    Inventors: Yeong Deuk SEO, Sang Hwa LEE, Sang Hyun HONG
  • Patent number: 11002938
    Abstract: Disclosed herein is a lens barrel member. The lens barrel member includes: a lens barrel surrounding an outer periphery of a lens; and a housing receiving the lens barrel, the lens barrel being secured to the housing, wherein the lens barrel is formed of a lens barrel composition including: about 50 wt % to about 75 wt % of a polycarbonate resin; about 20 wt % to about 45 wt % of a glass fiber; about 0.5 wt % to about 3 wt % of a polyolefin wax; and about 0.5 wt % to about 3 wt % of a fluorinated olefin resin, and a weight ratio of the polyolefin wax to the fluorinated olefin resin ranges from about 1:0.3 to about 1:3. The lens barrel member can have a low coefficient of friction and/or good properties in terms of rigidity and/or dimensional stability.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: May 11, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jee Kwon Park, Ik Mo Kim, Jung Ki Kim, Sang Hyun Hong
  • Patent number: 10998477
    Abstract: A polyester resin composition includes: (A) polycyclohexylenedimethylene terephthalate (PCT) resin which is a polymer of terephthalic acid and cyclohexanedimethanol, wherein the cyclohexanedimethanol has a trans/cis isomer ratio of about 2.3 or more; (B) a white pigment, wherein the white pigment is titanium dioxide; and (C) inorganic fillers, wherein the inorganic fillers are glass fibers. A molded article formed from the polyester resin composition can exhibit improved mechanical properties and moldability, and thus can be suitable for light emitting diode (LED) reflectors.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 4, 2021
    Assignee: Lotte Chemical Corporation
    Inventors: Tae Gon Kang, Chan Moo Park, Yoo Jin Jung, Jong Cheol Lim, Sang Hyun Hong, Tae Soo Kim, Young Ho Park