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).

  • Publication number: 20200148849
    Abstract: The present invention relates to a thermoplastic resin composition for laser direct structuring, containing: a polycarbonate resin; an inorganic compound comprising titanium dioxide and zinc sulfide; a fibrous inorganic filler; and an additive for laser direct structuring. Therefore, the present invention can provide: a thermoplastic resin composition for laser direct structuring, capable of implementing excellent whiteness while maintaining excellent impact resistance and rigidity; and a molded article comprising the same.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 14, 2020
    Inventors: Yoo Jin JUNG, Ik Mo KIM, Jung Ki KIM, Jee Kwon PARK, Sang Hyun HONG
  • Patent number: 10636951
    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; titanium oxide; a core-shell structured impact modifier wherein the core includes a silicon and/or acrylic compound and the shell includes an acrylic compound; and a copolymer of ethylene and an alkyl (meth)acrylate comonomer. The thermoplastic resin composition and a molded article formed from the same can exhibit excellent properties in terms of reflectance, reflectance maintenance at high temperature, and/or flexural strength.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: April 28, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Tae Gon Kang, Chan Moo Park, Yoo Jin Jung, Yang Il Kim, Tae Soo Kim, Sang Hyun Hong
  • Publication number: 20200123378
    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: Application
    Filed: December 29, 2017
    Publication date: April 23, 2020
    Inventors: Kyoung Tae YOUM, Yeong Deuk SEO, Sang Hyun HONG
  • Patent number: 10563038
    Abstract: A polycarbonate resin composition and a molded article manufactured using the same. The polycarbonate resin composition includes: (A) a polycarbonate resin including end groups, wherein the end groups include a hydroxyl group (—OH) in an amount of about 1% to about 20% based on the total weight (100 wt %) of all end groups; and (B) a metal compound comprising at least one of a metal oxide, a heavy metal complex oxide, and a copper salt. The polycarbonate resin composition and a molded article manufactured using the same can have excellent properties in terms of impact strength, flexural strength, and processability.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: February 18, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Yoo Jin Jung, Eun Taek Woo, Eric Arifin, Jung Ki Kim, Na Ri Park, Mi Rae Jang, Sang Hyun Hong
  • Publication number: 20200032052
    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: Application
    Filed: July 24, 2019
    Publication date: January 30, 2020
    Inventors: Nam Hyun KIM, Young Mi KIM, Bong Jae LEE, Sang Hyun HONG
  • Patent number: 10545367
    Abstract: The present invention relates to a pressure-sensitive adhesive composition, an optical member, a polarizing plate, and a display device. The pressure-sensitive adhesive composition according to an embodiment of the present invention may form a pressure-sensitive adhesive which has excellent general physical properties such as coating properties, endurance reliability, or the like, and which may stably maintain the physical properties for the long term. Further, the pressure-sensitive adhesive composition may be particularly applied to various optical films, thereby forming the pressure-sensitive adhesive layer which exhibits excellent adhesion with the optical film, and when the pressure-sensitive adhesive composition is applied to the polarizing plate, bending properties may be effectively prevented.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: January 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Min Ki Lee, Sung Soo Yoon, Su Jeong Kim, Sang Hyun Hong, Jeong Ae Yoon, Han Na Chi
  • Patent number: 10538661
    Abstract: A polyester resin composition and a molded article produced using the same. The polyester resin composition includes: (A) two polyester resins including an aliphatic ring structure and having different trans/cis isomer ratios in the aliphatic ring; (B) a white pigment; and (C) an inorganic filler, wherein the polyester resin composition has a crystallization temperature (Tc) of about 230° C. to about 250° C., as measured by differential scanning calorimetry (DSC) while cooling the resin composition at a cooling rate of ?100° C./min.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: January 21, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Young Ho Park, Tae Gon Kang, Yang Il Kim, Chan Moo Park, Sang Hyun Hong
  • Patent number: 10508190
    Abstract: Disclosed herein is a polyester resin composition and a molded article manufactured therefrom. The polyester resin composition includes: (A) a polyester resin; (B) a white pigment; and (C) a reflectance retention agent comprising an inorganic compound having a pH of about 7.5 to about 14.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: December 17, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Yang Il Kim, Tae Gon Kang, Chan Moo Park, In Geol Baek, Sang Hyun Hong
  • Patent number: 10501623
    Abstract: Disclosed herein is a polycarbonate resin composition. The polycarbonate resin composition includes: (A) 100 parts by weight of a polycarbonate resin; (B) about 1 part by weight to about 5 parts by weight of a core-shell type impact modifier having an average particle diameter (D50) of about 70 nm to about 130 nm; and (C) about 0.1 parts by weight to about 1 parts by weight of an olefin-(meth) acrylate copolymer, wherein the core-shell type impact modifier (B) includes a unit derived from a C1 to C6 alkyl (meth)acrylate and has a unimodal particle size distribution.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: December 10, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Mi Rae Jang, Jung Ki Kim, Yeong Deuk Seo, Sang Hyun Hong
  • Publication number: 20190352504
    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: Application
    Filed: December 29, 2017
    Publication date: November 21, 2019
    Inventors: Nam Hyun KIM, Sang Hyun HONG
  • Publication number: 20190352506
    Abstract: One embodiment of the present invention relates to a thermoplastic resin composition, comprising: (A) from about 30% to about 50% by weight of an aromatic polyamide resin; (B) from about 1% to about 10% by weight of an aliphatic polyamide resin; (C) from about 1% to about 15% by weight of a polyphenylene sulfide resin; (D) from about 10% to about 20% by weight of a phosphorus flame retardant; (E) from about 0.1% to about 5% by weight of a chelating agent; and (F) from about 30% to about 50% by weight of a glass fiber.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 21, 2019
    Inventors: Ik Mo KIM, Kyung Rae KIM, Chan Gyun SHIN, Sang Hyun HONG
  • Publication number: 20190338117
    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: Application
    Filed: December 27, 2017
    Publication date: November 7, 2019
    Applicant: LOTTE ADVANCED MATERIALS CO., LTD.
    Inventors: Jee Kwon PARK, Yeong Deuk SEO, Jung Ki KIM, Yoo Jin JUNG, Sang Hyun HONG
  • Patent number: 10468568
    Abstract: A polyester resin composition includes: (A) a polyester resin which includes a polymer of a dicarboxylic acid component including an aromatic dicarboxylic acid, for example but not limited to terephthalic acid, and a diol component including an alicyclic diol, for example but not limited to cyclohexanedimethanol, having a trans/cis isomer ratio of about 2.3 or more; (B) a white pigment; and (C) inorganic fillers. 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: March 31, 2015
    Date of Patent: November 5, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Tae Gon Kang, Chan Moo Park, Yoo Jin Jung, Jong Cheol Lim, Sang Hyun Hong, Tae Soo Kim, Young Ho Park
  • Patent number: 10450460
    Abstract: A thermoplastic resin composition of the present invention comprises: (A) an aromatic polyamide resin; (B) an aliphatic polyamide resin; (C) a first chelating agent comprising at least one of a carboxylic acid and a salt thereof, and an amino group; (D) a second chelating agent comprising an aromatic dicarboxylic acid; and (E) a filler. The thermoplastic resin composition has an excellent long-term heat stability, and thus has an advantage of maintaining mechanical properties even when exposed to high temperatures for a long period of time.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: October 22, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Kyung Rae Kim, Chan Gyun Shin, Hyoung Taek Kang, Sang Hyun Hong
  • Publication number: 20190319177
    Abstract: A polyester resin composition includes: (A) a polyester resin which includes a polymer of a dicarboxylic acid component including an aromatic dicarboxylic acid and a diol component including an alicyclic diol having a trans/cis isomer ratio of about 2.3 or more; (B) a white pigment; and (C) inorganic fillers. 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: Application
    Filed: June 25, 2019
    Publication date: October 17, 2019
    Inventors: Tae Gon KANG, Chan Moo PARK, Yoo Jin JUNG, Jong Cheol LIM, Sang Hyun HONG, Tae Soo KIM, Young Ho PARK
  • Publication number: 20190202186
    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: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Inventors: Sang Hwa LEE, Yeong Deuk SEO, Sang Hyun HONG
  • Publication number: 20190203046
    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: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Sang Hwa LEE, Yeong Deuk SEO, Kyoung Tae YOUM, Sang Hyun HONG
  • Publication number: 20190196133
    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: Application
    Filed: December 26, 2018
    Publication date: June 27, 2019
    Inventors: Jee Kwon PARK, Ik Mo KIM, Jung Ki KIM, Sang Hyun HONG
  • Patent number: 10329408
    Abstract: A thermoplastic resin composition and a molded article produced using the same. The thermoplastic resin composition includes: a polyester resin comprising a repeat unit represented by Formula 1; a white pigment; and glass fillers comprising glass fibers having a circular cross-section and an average sectional diameter of about 6 ?m to about 8 ?m and flat glass fibers having a sectional aspect ratio of about 1.5 to about 8, wherein a weight ratio of the glass fibers to the flat glass fibers (circular shape:flat shape) ranges from about 1:0.1 to about 1:6, wherein Ar is a C6 to C18 arylene group; R1 and R3 are the same or different and are each independently a C1 to C10 linear alkylene group; and R2 is a C5 to C12 cyclic alkylene group. The thermoplastic resin composition and the molded article produced using the same can exhibit excellent reflectance, impact resistance, stiffness, and balance therebetween.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: June 25, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Young Ho Park, Chan Moo Park, Tae Gon Kang, Sang Hyun Hong
  • Patent number: 10330840
    Abstract: Provided are a pressure-sensitive adhesive optical film, a crosslinkable composition, and a display device. A pressure-sensitive adhesive layer using a polymer component exhibiting excellent crosslinking efficiency even at a low molecular weight to exhibit excellent workability, durability and dimension stability, and the optical film to which such a pressure-sensitive adhesive layer is applied may be provided.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 25, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Jeong Ae Yoon, Su Jeong Kim, Sung Soo Yoon, Min Ki Lee, Sang Hyun Hong