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: 10273361
    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: Grant
    Filed: December 30, 2014
    Date of Patent: April 30, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Won Young Choi, Doo Young Kim, Jung Hun Lee, Won Ko, Chang Min Hong
  • Patent number: 10266692
    Abstract: The present invention relates to an automobile-use thermoplastic resin composition, and an automobile-use molded product manufactured therefrom. The automobile-use thermoplastic resin composition comprises an aliphatic polyamide resin; a first chelating agent comprising an amino group and at least one of carboxylic acid and a salt thereof; a second chelating agent comprising a C1 to C10 (not including carboxyl group carbon) aliphatic polyvalent carboxylic acid having two to four carboxyl groups; and a filler.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: April 23, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyoungtaek Kang, Chang Min Hong
  • Publication number: 20190085165
    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: November 19, 2018
    Publication date: March 21, 2019
    Inventors: Won Young CHOI, Doo Young KIM, Jung Hun LEE, Won KO, Chang Min HONG
  • Publication number: 20190016888
    Abstract: The present invention relates to a polyamide/polyphenylene ether resin composition containing: a base resin comprising polyphenylene ether, a polyamide and an impact modifier; a compatibilizer; and a polyamine, and to: a polyamide/polyphenylene ether resin composition having a notched Izod impact strength of about 12 kJ/m2 or more when measured at 23° C. according to the ISO 180 standard, and a number of checkerboard lattices, in which peeling off occurs, being about 5% or less of the total number of checkerboard lattices in a 1 mm-gap checkerboard pattern test for testing adhesion to acrylic paints and a melamine-based paints according to the JIS K5600-5-6 standard; and a preparation method therefor.
    Type: Application
    Filed: November 17, 2016
    Publication date: January 17, 2019
    Applicant: LOTTE ADVANCED MATERIALS CO., LTD.
    Inventors: Won Young CHOI, Doo Young KIM, Kyun Ha BAN, Chang Min HONG
  • Publication number: 20190002688
    Abstract: The present invention relates to a thermoplastic resin composition and a molded product containing the same, the composition comprising: a base resin comprising a polycarbonate resin, a polyester resin, and a polyalkyl(meth)acrylate resin; a diene-based impact modifier; and an acrylic impact modifier.
    Type: Application
    Filed: November 30, 2016
    Publication date: January 3, 2019
    Inventors: Jeong Eun PARK, Hee Yun JEONG, Kee Hae KWON, Chang Min HONG
  • Patent number: 10125258
    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: Grant
    Filed: April 28, 2016
    Date of Patent: November 13, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jung Woo Park, Myung Hun Kim, Kee Hae Kwon, Chang Min Hong
  • Publication number: 20180312663
    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 group 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 carboxyl group) having 2 to 4 carboxyl groups; and a filler.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 1, 2018
    Inventors: Hyoungtaek KANG, Chang Min HONG
  • Patent number: 10081719
    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: Grant
    Filed: May 28, 2015
    Date of Patent: September 25, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyoungtaek Kang, Chang Min Hong
  • Publication number: 20180237630
    Abstract: A thermoplastic resin composition of the present invention contains: a first aromatic vinyl-based resin, which is a copolymer of an aromatic vinyl-based monomer and a maleic acid anhydride; a second aromatic vinyl-based resin, which is a copolymer of an aromatic vinyl-based monomer, a maleic acid anhydride, and a maleimide-based monomer represented by chemical formula 1; a rubber-modified vinyl-based graft copolymer; and a reinforcing filler. The thermoplastic resin composition is excellent in view of heat resistance, rigidity, dimensional stability, and the like.
    Type: Application
    Filed: September 29, 2016
    Publication date: August 23, 2018
    Inventors: Yun Seok BAE, Kyun Ha BAN, Chang Min HONG
  • Publication number: 20180181679
    Abstract: A semiconductor device includes a fin, first to fourth gate electrodes, first and second storage devices, first and second search terminals, and first and second dummy search terminals. The fin extend in a first direction. The gate electrodes intersecting the fin. The storage devices are connected with the gate electrodes. The first search terminal is connected with the second gate electrode and is spaced from the fin by a first distance. The second search terminal is connected with the third gate electrode and is spaced from the fin by a second distance different from the first distance. The first dummy search terminal is connected with the second gate electrode and is spaced from the fin by the second distance. The second dummy search terminal is connected with the third gate electrode and is spaced from the fin by the first distance.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 28, 2018
    Inventors: Hee Bum Hong, Chang Min Hong
  • Patent number: 10000635
    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: Grant
    Filed: December 29, 2015
    Date of Patent: June 19, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: In Chol Kim, Kee Hae Kwon, Jung Woo Park, Chang Min Hong
  • Patent number: 9994704
    Abstract: A thermoplastic elastomer composition of the present invention comprises (A) 30 to 40% by weight of a block terpolymer of an aromatic vinyl compound and alkene or a conjugated diene-based compound; (B) 25 to 50% by weight of a paraffin oil; (C) 1 to 5% by weight of a polyolefin-based resin; (D) 5 to 20% by weight of an inorganic additive; and (E) 5 to 15% by weight of a polyphenylene ether-based resin. The thermoplastic elastomer composition, which has a surface hardness of 0.1 to 40 A (shore A), shows excellent low hardness and has improved physical properties at high temperature, particularly, flexibility, restoring force at high temperatures, and the like.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 12, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jung Wook Kim, Do Hoon Chang, Chang Min Hong
  • Patent number: 9951216
    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: June 22, 2017
    Date of Patent: April 24, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Ji Eun Park, Kyun Ha Ban, Ja Yoon Kim, Chang Min Hong
  • Publication number: 20180057970
    Abstract: Disclosed herein is spun yarn and a method of preparing the same. The spun yarn includes carbon staple fibers including about 97 wt % or more of carbon, and thermoplastic resin fibers. The spun yarn includes carbon staple fibers prepared from scrap generated during manufacture of carbon fiber-reinforced plastic products, and can have good mechanical properties and conductivity.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Inventors: Kyun Ha BAN, Yun Seok BAE, Chang Min HONG
  • Patent number: 9862822
    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: Grant
    Filed: November 3, 2015
    Date of Patent: January 9, 2018
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Keehae Kwon, Won Ko, Wonseon Lee, Chang Min Hong
  • Publication number: 20170327687
    Abstract: The present invention relates to an automobile-use thermoplastic resin composition, and an automobile-use molded product manufactured therefrom. The automobile-use thermoplastic resin composition comprises an aliphatic polyamide resin; a first chelating agent comprising an amino group and at least one of carboxylic acid and a salt thereof; a second chelating agent comprising a C1 to C10 (not including carboxyl group carbon) aliphatic polyvalent carboxylic acid having two to four carboxyl groups; and a filler.
    Type: Application
    Filed: August 24, 2015
    Publication date: November 16, 2017
    Inventors: Hyoungtaek KANG, Chang Min HONG
  • Patent number: 9790357
    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: Grant
    Filed: May 2, 2016
    Date of Patent: October 17, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jeong Min Lee, Kee Hae Kwon, Jeong Eun Park, Chang Min Hong, Jae Youp Chung
  • Patent number: 9790362
    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: Grant
    Filed: June 25, 2015
    Date of Patent: October 17, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Keehae Kwon, Won Ko, Boeun Kim, Joohyun Jang, Chang Min Hong
  • Patent number: 9783668
    Abstract: A thermoplastic resin composition includes (A) a first rubber-modified acrylic-based graft copolymer having an average rubber particle diameter of greater than or equal to about 100 nm and less than about 200 nm, (B) a second rubber-modified acrylic-based graft copolymer having an average rubber particle diameter of greater than or equal to about 200 nm and less than or equal to about 400 nm, (C) a first vinyl-based copolymer of an aromatic vinyl monomer and a unsaturated nitrile monomer, and (D) a second vinyl-based copolymer of an alkyl (meth)acrylate monomer, an aromatic vinyl monomer, and a unsaturated nitrile monomer. A molded article can be made using the same.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: October 10, 2017
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Ji-Eun Park, Ja-Yoon Kim, Kyun-Ha Ban, Chang-Min Hong
  • Publication number: 20170283582
    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: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Ji Eun PARK, Kyun Ha BAN, Ja Yoon KIM, Chang Min HONG