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: 9469759
    Abstract: Provided is a thermoplastic resin composition that comprises (A) a graft copolymer; (B) a polyalkyl (meth)acrylate; (C) an alkyl (meth)acrylate-aromatic vinyl-vinyl cyanide copolymer; and (D) an impact-reinforcing agent, wherein the graft copolymer (A) comprises an aromatic vinyl compound-vinyl cyanide compound copolymer grafted on a core part comprising a rubbery polymer.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: October 18, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Taek-Woong Chung, In-Chol Kim, Chang-Min Hong
  • Patent number: 9447275
    Abstract: A molded article for an automobile is formed using a thermoplastic resin composition including (A) about 1 to about 20 wt % of a first rubber-modified acrylic-based graft copolymer having an average particle diameter of greater than or equal to about 100 nm and less than about 200 nm, (B) about 1 to about 20 wt % of a second rubber-modified acrylic-based graft copolymer having an average particle diameter of greater than or equal to about 200 nm and less than or equal to about 400 nm, (C) about 5 to about 40 wt % of a first vinyl-based copolymer of an alkyl(meth)acrylate monomer, an aromatic vinyl monomer, and an unsaturated nitrile monomer wherein the alkyl(meth)acrylate monomer is included in an amount of greater than or equal to about 50 wt %, and (D) about 50 to about 85 wt % of a polycarbonate resin, wherein the molded article is a radiator grill or an outside mirror housing.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: September 20, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In-Chol Kim, Kee-Hae Kwon, Jung-Woo Park, Chang-Min Hong
  • Patent number: 9422426
    Abstract: Disclosed are a transparent thermoplastic resin composition including (A) about 5 to about 40 wt % of an impact-reinforcing agent having a core-shell structure where an acrylic-based compound is grafted on a rubber core including a copolymer of an acrylic-based monomer and a diene-based monomer, to form a shell, and (B) about 60 to about 95 wt % of an acrylic-based resin, and a molded article using the same.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: August 23, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Kee-Hae Kwon, In-Chol Kim, Jung-Eun Park, Jeong-Min Lee, Jin-Young Huh, Chang-Min Hong
  • Patent number: 9403978
    Abstract: A thermoplastic resin composition comprises (A) about 30 to about 98 wt % of a polycarbonate resin, (B) about 1 to about 50 wt % of a rubber modified acrylic-based graft copolymer, and (C) about 1 to about 69 wt % of a branched copolymer including silicon-based compound. A molded article can be made using the same.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: August 2, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Kee-Hae Kwon, In-Chol Kim, Bo-Eun Kim, Joo-Hyun Jang, Chang-Min Hong
  • Publication number: 20160185959
    Abstract: A thermoplastic resin composition for automotive interior components and a molded article using the same. The thermoplastic resin composition includes: a base resin comprising about 55 wt % to about 90 wt % of a polycarbonate resin and about 10 wt % to about 45 wt % of a vinyl cyanide compound-aromatic vinyl compound copolymer; about 5 parts by weight to about 30 parts by weight of an impact modifier; and about 1 part by weight to about 8 parts by weight of a matting agent, each based on about 100 parts by weight of the base resin. The impact modifier includes a first impact modifier which is a core-shell type acrylic rubber-modified graft copolymer, and a second impact modifier which is a core-shell type diene-acrylic rubber-modified graft copolymer.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 30, 2016
    Inventors: In Chol Kim, Kee Hae Kwon, Jung Woo Park, Chang Min Hong
  • Publication number: 20160177093
    Abstract: A thermoplastic resin composition for automobiles and a molded part for automobiles manufactured using the same is disclosed. The thermoplastic resin composition for automobiles includes: a semi-aromatic polyamide resin; an aliphatic polyamide resin; a first chelating agent including an amino group and a carboxyl group acid or a salt thereof; a second chelating agent including a C1 to C10 (not including carbon of carboxyl group) aliphatic polyhydric carboxylic acid having two to four carboxyl groups; and fillers. The thermoplastic resin composition for automobiles can have good long-term thermal stability and can maintain mechanical properties despite exposure to high temperature for a long time, and thus can be easily applied to peripheral parts of an automobile engine compartment.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: Hyoung Taek KANG, Jae Youp CHUNG, Chang Min HONG
  • Publication number: 20160168376
    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: Application
    Filed: May 8, 2014
    Publication date: June 16, 2016
    Applicant: Samsung SDI CO., Ltd.
    Inventors: Kee-Hae KWON, In-Chol KIM, Joo-Hyun Jang, Jun-Ho CHI, Chang-Min HONG
  • Patent number: 9359500
    Abstract: Disclosed is a resin composition including (A) a polycarbonate resin and (B) a rubber modified vinyl-based graft copolymer, and (C) about 1 to about 9 parts by weight of a random copolymer of a compound represented by the following Chemical Formula 1, an aromatic vinyl monomer, and a vinyl cyanide monomer, based on about 100 parts by weight of the polycarbonate resin (A) and the rubber-modified vinyl-based graft copolymer (B): wherein, in the above chemical formula, m is an integer ranging from 0 to 10, and X is phenyl, methylphenyl, methylethylphenyl, methoxyphenyl, cyclohexylphenyl, chlorophenyl, bromophenyl, phenylphenyl group, or benzylphenyl.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: June 7, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Jung-Eun Park, Kee-Hae Kwon, Jin-Young Huh, Chang-Min Hong
  • Patent number: 9355754
    Abstract: An electroconductive polyamide/polyphenylene ether resin composition and a molded product for vehicle manufactured using the same includes a base resin (a) including polyphenylene ether (a-1) and polyamide (a-2); an impact modifier (b); a compatibilizer (c); and an electroconductive filler (d). The electroconductive filler (d) includes aromatic compounds having molecular weights of about 120 to about 1,000 g/mol, wherein the aromatic compounds are byproducts generated when preparing the electroconductive filler (d).
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: May 31, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang Min Hong, Doo Young Kim, Wonyoung Choi, Jung Hun Lee, Jin-Kyung Cho
  • Publication number: 20160137837
    Abstract: A thermoplastic resin composition comprises (A) a polycarbonate resin; (B) a rubber-modified aromatic vinyl copolymer that includes a rubbery polymer having an average particle size of about 0.5 to about 20 ?m; and (C) metal particles. A molded article can be prepared using the composition.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 19, 2016
    Inventors: Keehae KWON, Won KO, Wonseon LEE, Chang Min HONG
  • Patent number: 9321904
    Abstract: A polyamide resin composition includes (A) a semi-aromatic polyamide resin including a dicarboxylic acid unit including about 40 to about 100 mol % of an aromatic dicarboxylic acid unit, and an aliphatic diamine unit; (B) a glass fiber, and optionally (C) a heat stabilizer including copper halide and/or alkali metal halide, where a content of a terminal carboxyl group [COOH] and a content of a terminal amino group [NH2] of a molecular chain in the semi-aromatic polyamide resin (A) satisfy the following conditions: [COOH]>37 ?eq/g; [NH2]>80 ?eq/g; and, [NH2]/[COOH]>1.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: April 26, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Jae-Youp Chung, Jung-Hun Lee, Do-Hoon Chang, Chang-Min Hong
  • Publication number: 20160083578
    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: Application
    Filed: July 8, 2013
    Publication date: March 24, 2016
    Inventors: Kee-Hae KWON, O-Sung KWON, In-Chol KIM, Joo-Hyun JANG, Chang-Min HONG
  • Publication number: 20160046805
    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: Application
    Filed: August 12, 2015
    Publication date: February 18, 2016
    Inventors: Jung Eun PARK, Keehae KWON, Chang Min HONG
  • Publication number: 20160002455
    Abstract: Provided is a thermoplastic resin composition that comprises (A) a graft copolymer; (B) a polyalkyl (meth)acrylate; (C) an alkyl (meth)acrylate-aromatic vinyl-vinyl cyanide copolymer; and (D) an impact-reinforcing agent, wherein the graft copolymer (A) comprises an aromatic vinyl compound-vinyl cyanide compound copolymer grafted on a core part comprising a rubbery polymer.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 7, 2016
    Inventors: Taek-Woong CHUNG, In-Chol KIM, Chang-Min HONG
  • Publication number: 20150376402
    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: Application
    Filed: June 24, 2015
    Publication date: December 31, 2015
    Inventors: Myunghun KIM, Keehae KWON, Chang Min HONG
  • Publication number: 20150376403
    Abstract: A thermoplastic resin composition comprises (A) a polycarbonate resin; (B) a rubber-modified aromatic vinyl copolymer; (C) a branched copolymer that includes a silicon compound having two or more unsaturated radicals; and (D) metal particles. A molded product can be prepared using the composition.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 31, 2015
    Inventors: Keehae KWON, Won KO, Boeun KIM, Joohyun JANG, Chang Min HONG
  • Publication number: 20150344673
    Abstract: A thermoplastic resin composition for automobiles, and a molded product produced from the composition, includes a semi-aromatic polyamide resin; a first chelate agent that includes an amino radical and at least one of a carboxylic acid and salt thereof; a second chelate agent that includes an aliphatic multivalent C1 to C10 carboxylic acid (not including a carbon atom of a carboxylic radical) having 2 to 4 carboxylic radicals; and a filler.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 3, 2015
    Inventors: Hyoungtaek KANG, Chang Min HONG
  • Publication number: 20150344674
    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: Application
    Filed: May 29, 2015
    Publication date: December 3, 2015
    Inventors: Chang Min HONG, Jaeyoup CHUNG, Hyoungtaek KANG
  • Patent number: 9074094
    Abstract: A thermoplastic resin composition includes a base resin including (A) about 16 to about 73 wt % of polyphenylene ether; (B) about 18 to about 82 wt % of polyamide; and (C) about 1 to about 20 wt % of a polyethylene-based polymer; (D) about 0.05 to about 1 part by weight of a multi-functional compatibilizer having at least two carboxyl groups and (E) about 0.05 to about 1 part by weight of a multi-functional compatibilizer having a carboxyl group or an acid anhydride group along with a carbon-carbon double bond, based on about 100 parts by weight of the base resin.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: July 7, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Doo-Young Kim, Jung-Hun Lee, Jin-Kyung Cho, Do-Hoon Chang, Chang-Min Hong
  • Publication number: 20150187457
    Abstract: Provided herein is an electroconductive polyamide/polyphenylene ether resin composition, a method for preparing the same, and a molded product for vehicle manufactured using the same. The composition includes a base resin (a) including polyphenylene ether (a-1) and polyamide (a-2); an impact modifier (b); a compatibilizer (c); and an electroconductive filler (d), wherein a pH of the electroconductive filler (d) is about 4 to about 8.
    Type: Application
    Filed: December 30, 2014
    Publication date: July 2, 2015
    Inventors: Chang Min Hong, Doo Young Kim, Wonyoung Choi, Jung Hun Lee, Jin-Kyung Cho