Patents by Inventor Chang-Min Hong

Chang-Min 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: 9771476
    Abstract: A polycarbonate resin composition and a molded article manufactured using the same. The polycarbonate resin composition includes: (A) a polycarbonate resin; (B) a vinyl cyanide compound-aromatic vinyl compound copolymer; (C) an acrylonitrile-butadiene-styrene graft copolymer including (C-1) a first acrylonitrile-butadiene-styrene graft copolymer, a rubbery polymer of which has an average particle diameter of about 200 nm to about 350 nm and (C-2) a second acrylonitrile-butadiene-styrene graft copolymer, a rubbery polymer of which has an average particle diameter of about 400 nm to about 600 nm; and (D) a compatibilizer.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: September 26, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: In Chol Kim, Jung Woo Park, Kee Hae Kwon, Chang Min Hong
  • Patent number: 9765210
    Abstract: Disclosed herein is a thermoplastic resin composition. The thermoplastic resin composition includes: a matrix resin including a resin including a methyl methacrylate repeat unit; and an impact modifier, wherein the impact modifier includes a first core-shell type impact modifier including a butadiene rubber polymer core and a second core-shell type impact modifier including an acrylate rubber polymer core, and the second impact modifier is present in a greater amount than the first impact modifier. The thermoplastic resin composition can exhibit excellent properties in terms of weatherability, colorability, and gloss.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: September 19, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jin Kyung Cho, Kee Hae Kwon, In Chol Kim, Chang Min Hong
  • Patent number: 9758669
    Abstract: A thermoplastic resin composition includes a base resin including (A1) polycarbonate resin, (A2) polyester resin, and (A3) a vinyl cyanide compound-aromatic vinyl compound copolymer; (B) an impact reinforcing agent; and (C) a filler, wherein the (B) impact reinforcing agent has a core-shell structure including a rubbery polymer selected from the group consisting of a diene rubber, an acrylic rubber, a silicone rubber, and combinations thereof. A molded part for an automobile exterior can be made using the thermoplastic resin composition.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: September 12, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jung Eun Park, Keehae Kwon, Chang Min Hong
  • Patent number: 9732211
    Abstract: A thermoplastic resin composition having improved weather resistance includes an acrylic graft copolymer, an aromatic vinyl-vinyl cyanide copolymer, and a coloring agent including an inorganic pigment and an organic pigment mixed with each other at a predetermined ratio to maintain mechanical properties of the resin and have improved color mixing ability and weather resistance.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: August 15, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Ji Eun Park, Kyun Ha Ban, Ja Yoon Kim, Chang Min Hong
  • Publication number: 20170183496
    Abstract: Disclosed herein are a thermoplastic resin composition and a molded article formed of the same. The thermoplastic resin composition includes: a base resin comprising a polycarbonate resin, and first and second vinyl-modified graft copolymers comprising rubbery polymers having different average indexes of refraction respectively; and metal particles, wherein a difference between the average indexes of refractions of the rubbery polymers is greater than or equal to about 0.02.
    Type: Application
    Filed: December 9, 2016
    Publication date: June 29, 2017
    Inventors: Kee Hae KWON, Won KO, In Chol KIM, Chang Min HONG
  • Patent number: 9611386
    Abstract: Provided is a transparent polycarbonate composition that includes: (A) 5 to 95 wt % of biphenyl modified polycarbonate including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, and a repeating unit represented by Chemical Formula 3; and (B) 1 to 50 wt % of an acrylate-based copolymer including (B-1) a repeating unit derived from aromatic (meth)acrylate having a refractive index of 1.58 to 1.70 and (B-2) a repeating unit derived from a mono-functional unsaturated monomer.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: April 4, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kee-Hae Kwon, O-Sung Kwon, In-Chol Kim, Joo-Hyun Jang, Chang-Min Hong
  • Patent number: 9605147
    Abstract: A thermoplastic resin composition including (A) bisphenol A-based polycarbonate, (B) biphenyl group-containing polycarbonate, (C) a biphenyl group-containing or terphenyl group-containing (meth)acryl-based copolymer and (D) a graft copolymer and a molded article manufactured from the same.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: March 28, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kee-Hae Kwon, In-Chol Kim, Joo-Hyun Jang, Jun-Ho Chi, Chang-Min Hong
  • Publication number: 20170066889
    Abstract: The present invention relates to a painted molding article in which a paint composition is painted in a molding part formed of an injection molding thermoplastic resin composition, and the injection molding thermoplastic resin composition comprises: (a) a base resin including polyamide (a-1) and polyphenylene ether (a-2); (b) an impact modifier; and (c) a carbon fibril, wherein the polyamide (a-1) forms a matrix phase of the injection molding thermoplastic resin composition, the polyphenylene ether (a-2) and the impact modifier (b) form a domain phase of the injection molding thermoplastic resin composition, the carbon fibril (c) is dispersed on the domain phase and the matrix phase, the content of the carbon fibril (c) dispersed on the matrix phase is higher than the content of the carbon fibril (c) dispersed on the domain phase, and the ratio of weight of the carbon fibril (c) to weight of the polyamide (a-1) may be 0.006 to 0.03.
    Type: Application
    Filed: May 30, 2014
    Publication date: March 9, 2017
    Inventors: Chang Min HONG, Doo Young KIM, Won Young CHOI, Jin-Kyung CHO, Won KO, Jung Hun LEE
  • Publication number: 20170058121
    Abstract: A thermoplastic resin composition and a molded article including the same are disclosed herein. The thermoplastic resin composition includes a base resin including a polycarbonate (PC) resin and a polyester resin, inorganic fillers, and an aromatic (meth)acrylate polymer, wherein the aromatic (meth)acrylate polymer is a copolymer of a monomer mixture including a vinyl cyanide monomer, an aromatic vinyl monomer, and an aromatic (meth)acrylate.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 2, 2017
    Inventors: Jeong Eun PARK, Kee Hae KWON, Chang Min HONG
  • Publication number: 20170029617
    Abstract: A thermoplastic resin composition and a molded article including the same.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventors: Jeong Eun PARK, Hee Yun JEONG, Kee Hae KWON, Chang Min HONG
  • Patent number: 9540508
    Abstract: A thermoplastic resin composition includes a base resin comprising about 5 to about 95 weight % of polycarbonate resin and about 5 to about 95 weight % of polycarbonate-polysiloxane copolymer resin; and about 0.1 to about 5 parts by weight of luster pigment per about 100 parts by weight of the base resin.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: January 10, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang Min Hong, Won Seon Lee, Kee Hae Kwon, Jeong Min Lee
  • Publication number: 20170002198
    Abstract: A thermoplastic resin composition and a molded article including the same. The thermoplastic resin composition includes: about 100 parts by weight of a base resin including (A) about 70 percent by weight (wt %) to about 95 wt % of a polycarbonate resin and (B) about 5 wt % to about 30 wt % of a polyester resin; and (C) about 0.5 parts by weight to about 6 parts by weight of a linear (meth)acrylic resin.
    Type: Application
    Filed: June 28, 2016
    Publication date: January 5, 2017
    Inventors: Hee Yun JEONG, Kee Hae KWON, Chang Min HONG
  • Patent number: 9512300
    Abstract: A thermoplastic resin composition for automobiles including about 40 to about 80 weight % semi-aromatic polyamide resin; about 0.1 to about 1 weight % copper halide thermal stabilizer; about 0.1 to about 5 weight % zeolite; and about 15 to about 55 weight % glass fiber.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: December 6, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang Min Hong, Jaeyoup Chung, Hyoungtaek Kang
  • Patent number: 9493648
    Abstract: Disclosed is a thermoplastic resin composition including: (A) a polycarbonate resin; (B) an acrylate-styrene-acrylonitrile (ASA) graft copolymer; (C) a random copolymer of an alkyl(meth)acrylate, an aromatic vinyl compound, and a vinyl cyanide compound; and (D) a copolymer of an aromatic methacrylate and a monofunctional unsaturated monomer.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 15, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In-Chol Kim, Chang-Min Hong, Ja-Yoon Kim, Ji-Eun Park
  • Publication number: 20160326369
    Abstract: The present invention relates to a conductive polyamide/polyphenylene ether resin composition and an automotive molded article manufactured therefrom. The conductive polyamide/polyphenylene ether resin composition comprises: (a) a base resin comprising (a-1) polyphenylene ether and (a-2) polyamide; (b) a modified polyolefin based resin; (c) an impact modifier; (d) a compatibilizer; and (e) a conductive filler, and the conductive polyamide/polyphenylene ether resin composition is formed in a domain phase and a matrix phase, wherein the domain phase comprises (a-1) the polyphenylene ether and (c) the impact modifier and the matrix phase comprises (a-2) the polyamide and (b) the modified polyolefin based resin, (e) the conductive filler being dispersed on the domain phase and the matrix phase and the content of the conductive filler dispersed on the matrix phase being higher than that of the conductive filler dispersed on the domain phase.
    Type: Application
    Filed: December 30, 2014
    Publication date: November 10, 2016
    Inventors: Won Young CHOI, Doo Young KIM, Jung Hun LEE, Won KO, Chang Min HONG
  • Publication number: 20160326358
    Abstract: A heat resistant thermoplastic resin composition and a molded article manufactured using the same. The heat resistant thermoplastic resin composition includes about 100 parts by weight of an aromatic vinyl compound; about 20 parts by weight to about 60 parts by weight of a polycarbonate resin; and about 30 parts by weight to about 60 parts by weight of an impact modifier. The heat resistant thermoplastic resin composition and a molded article manufactured using the same can have excellent properties in terms of impact resistance, heat resistance, and/or chemical resistance and can be eco-friendly due to low level of VOC emissions.
    Type: Application
    Filed: May 2, 2016
    Publication date: November 10, 2016
    Inventors: Jeong Min LEE, Kee Hae KWON, Jeong Eun PARK, Chang Min HONG, Jae Youp CHUNG
  • Publication number: 20160319128
    Abstract: A polycarbonate resin composition and a molded article for automotive parts manufactured using the same. The thermoplastic resin composition includes: (A) a polycarbonate resin; (B) a rubber-modified vinyl graft copolymer comprising (B-1) a first rubber-modified vinyl graft copolymer comprising a rubber polymer having an average particle diameter of about 230 nm to about 380 nm and (B-2) a second rubber-modified vinyl graft copolymer comprising a rubber polymer having an average particle diameter of about 60 nm to about 200 nm; (C) an aromatic vinyl-vinyl cyanide copolymer; and (D) a (meth)acrylic copolymer. The thermoplastic resin composition can have excellent properties in terms of heat stability and gloss.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 3, 2016
    Inventors: Jung Woo PARK, Myung Hun KIM, Kee Hae KWON, Chang Min HONG
  • Publication number: 20160312026
    Abstract: A polycarbonate resin composition and a molded article manufactured using the same. The polycarbonate resin composition includes: (A) a polycarbonate resin; (B) a vinyl cyanide compound-aromatic vinyl compound copolymer; (C) an acrylonitrile-butadiene-styrene graft copolymer including (C-1) a first acrylonitrile-butadiene-styrene graft copolymer, a rubbery polymer of which has an average particle diameter of about 200 nm to about 350 nm and (C-2) a second acrylonitrile-butadiene-styrene graft copolymer, a rubbery polymer of which has an average particle diameter of about 400 nm to about 600 nm; and (D) a compatibilizer.
    Type: Application
    Filed: April 20, 2016
    Publication date: October 27, 2016
    Inventors: In Chol KIM, Jung Woo PARK, Kee Hae KWON, Chang Min HONG
  • Patent number: 9475937
    Abstract: A thermoplastic resin composition comprises (A) a polycarbonate resin; (B) a rubber-modified aromatic vinyl copolymer; and (C) a branched copolymer produced from a mixture that comprises a silicon compound having two or more unsaturated radicals. A molded product can be prepared using the composition.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 25, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myunghun Kim, Keehae Kwon, Chang Min Hong
  • Publication number: 20160304711
    Abstract: Disclosed herein is a thermoplastic resin composition. The thermoplastic resin composition includes: a matrix resin including a resin including a methyl methacrylate repeat unit; and an impact modifier, wherein the impact modifier includes a first core-shell type impact modifier including a butadiene rubber polymer core and a second core-shell type impact modifier including an acrylate rubber polymer core, and the second impact modifier is present in a greater amount than the first impact modifier. The thermoplastic resin composition can exhibit excellent properties in terms of weatherability, colorability, and gloss.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Inventors: Jin Kyung CHO, Kee Hae KWON, In Chol KIM, Chang Min HONG