Patents by Inventor Chun-Ho Park

Chun-Ho Park 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: 10640638
    Abstract: A thermoplastic resin composition with low gloss and improved colorability, pencil hardness and wear resistance has (A) 5 to 35% by weight of a first graft copolymer having an average particle diameter of 50 to 150 nm and containing acrylate rubber as a core; (B) 10 to 40% by weight of a second graft copolymer having an average particle diameter of more than 150 nm and 800 nm or less and containing acrylate rubber as a core; (C) 5 to 15% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer having a weight average molecular weight of 70,000 to 130,000 g/mol; (D) 20 to 50% by weight of an aromatic vinyl compound-(meth)acrylate compound copolymer having a weight average molecular weight of 65,000 to 100,000 g/mol; and (E) 0.1 to 7% by weight of a syndiotactic polystyrene resin.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 5, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yong Hee An, Yong Yeon Hwang, Hyun Taek Oh, Bong Keun Ahn, Min Jung Kim, Chun Ho Park, Eun Soo Kang, Jang Won Park
  • Publication number: 20200129414
    Abstract: The present invention may provide an oil in water (O/W) cosmetic composition having water resistance and ease of facial cleansing, using an A-B-A type triblock copolymer which is included in the cosmetic, and thus may adjust the surfactant power. Further, it is possible to provide a method for imparting water resistance and ease of facial cleansing, using the A-B-A type triblock copolymer.
    Type: Application
    Filed: October 30, 2019
    Publication date: April 30, 2020
    Inventors: Ji Hyun LEE, Jun Bae LEE, Sun Young KIM, Sung Yong KIM, So Youn AN, Chun Ho PARK, Myeong Sam PARK
  • Publication number: 20200115540
    Abstract: Provided is a thermoplastic resin composition including: a first copolymer including an acrylic rubber-based graft copolymer and an emulsifier including a salt of a compound represented by Chemical Formula 1; a second copolymer including a unit derived from an alkyl acrylate-based monomer and a unit derived from an alkyl methacrylate-based monomer; and a third copolymer including a unit derived from an aromatic vinyl-based monomer and a unit derived from a vinyl cyan-based monomer.
    Type: Application
    Filed: January 17, 2019
    Publication date: April 16, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Chun Ho PARK, Yong Yeon HWANG, Bong Keun AHN, Min Jung KIM, Yong Hee AN, Wang Rae JOE, Jang Won PARK, Jeong Min JANG, Ji Yoon JEON
  • Publication number: 20200062941
    Abstract: A polypropylene resin composition includes a polypropylene resin having a melting index of 80 g/10 min to 95 g/10 min measured under a temperature of 230° C. and a load of 2.16 kg; a thermoplastic elastomer; and a needle-shaped inorganic filler having an aspect ratio of 5 to 10.
    Type: Application
    Filed: August 27, 2018
    Publication date: February 27, 2020
    Inventors: Chun Ho PARK, Ki Hyun SUNG, Soo Min LEE, Jae Jung YOO, Hyun Kyung KIM, Hee Joon LEE
  • Patent number: 10569807
    Abstract: A side sill molding may include a front plate configured to have a length corresponding to a length of a side sill, a top plate configured to be connected to an upper end of the front plate, a bent part configured to be connected to the top plate and have a clip part formed at an inner side thereof, and a rib configured to connect a lower end of the clip part and a preset portion of the front plate.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: February 25, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, LG Hausys, Ltd.
    Inventors: Yong-Won Jeong, Seung-Mok Lee, Sun-Jun Kwon, Chun-Ho Park, Guo-Dong Jeong, Hyun-Seung Hwang
  • Patent number: 10533086
    Abstract: A polypropylene resin composition includes: a base resin; a thermoplastic elastomer; and an inorganic filler; a major-axis diameter/minor-axis diameter, which is an aspect ratio of the inorganic filler, is 2 to 8. A molded product includes an injection molding of the polypropylene resin composition. The polypropylene resin composition may simultaneously impart excellent rigidity, impact resistance, and excellent dimensional stability even when applied to a molded product having a small thickness, while maintaining a low specific gravity.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: January 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, LG Hauseys, Ltd., DAE HA Co., Ltd.
    Inventors: Hyun Gyung Kim, Hee Joon Lee, Ju-Hyun Ji, Chun Ho Park, Ki Hyun Sung, Kwan Suk Ryu
  • Publication number: 20190382574
    Abstract: A thermoplastic resin composition with low gloss and improved colorability, pencil hardness and wear resistance has (A) 5 to 35% by weight of a first graft copolymer having an average particle diameter of 50 to 150 nm and containing acrylate rubber as a core; (B) 10 to 40% by weight of a second graft copolymer having an average particle diameter of more than 150 nm and 800 nm or less and containing acrylate rubber as a core; (C) 5 to 15% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer having a weight average molecular weight of 70,000 to 130,000 g/mol; (D) 20 to 50% by weight of an aromatic vinyl compound-(meth)acrylate compound copolymer having a weight average molecular weight of 65,000 to 100,000 g/mol; and (E) 0.1 to 7% by weight of a syndiotactic polystyrene resin.
    Type: Application
    Filed: November 1, 2017
    Publication date: December 19, 2019
    Inventors: Yong Hee AN, Yong Yeon HWANG, Hyun Taek OH, Bong Keun AHN, Min Jung KIM, Chun Ho PARK, Eun Soo KANG, Jang Won PARK
  • Patent number: 10487204
    Abstract: The present invention relates to a method of preparing an ASA graft copolymer, a method of preparing a thermoplastic ASA resin composition including the same, and a method of preparing an ASA molded part, and more particularly, to a method of preparing a multilayered ASA graft copolymer including a step of preparing seeds, cores, and shells. According to the method, since a multifunctional carboxylic acid having 20 or more carbon atoms or a salt thereof is introduced as an emulsifier, the content of the emulsifier remaining in a resin may be reduced, thereby providing an ASA resin having excellent thermal stability and appearance characteristics while the inherent physical properties thereof, such as impact resistance and weather resistance, are maintained.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: November 26, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Bong Keun Ahn, Yong Yeon Hwang, Hyun Taek Oh, Min Jung Kim, Chun Ho Park, Eun Soo Kang, Yong Hee An, Jang Won Park
  • Patent number: 10450453
    Abstract: The present disclosure relates to a thermoplastic graft copolymer resin, a method of preparing the same, and a thermoplastic resin composition including the same. More particularly, the present invention relates to a thermoplastic graft copolymer resin including a seed, an alkyl acrylate rubber core enclosing the seed, and a shell enclosing the rubber core, a method of preparing the same, and a thermoplastic resin composition including the same, wherein the thermoplastic graft copolymer resin has a gel content of 93% by weight or more and a swelling index of 6 to 14. In accordance with the present disclosure, a thermoplastic graft copolymer resin exhibiting excellent chemical resistance, heat resistance, and impact resistance, a method of preparing the same, and a thermoplastic resin composition including the same are provided.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: October 22, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Eun Soo Kang, Yong Yeon Hwang, Hyun Taek Oh, Min Jung Kim, Chun Ho Park, Sang Mi Lee, Yeong Min Lee
  • Patent number: 10364344
    Abstract: The present disclosure relates to a thermoplastic resin composition and a molded article manufactured from the same. More particularly, the present disclosure relates to a thermoplastic resin composition including 10 to 59% by weight of an acrylic graft copolymer resin (a) having a graft efficiency of 50 to 95%; 1 to 20% by weight of an acrylic graft copolymer resin (b) having a graft efficiency of 5 to 49%; and 21 to 89% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer resin (c), wherein a weight ratio of (a):(b) is 1:1 to 10:1, and a molded article manufactured from the same. In accordance with the present disclosure, a thermoplastic resin composition that exhibits glossy effect by injection molding and matte effect by extrusion molding while providing superior mechanical strength and thus is applicable to both glossy products and matte products, and a molded article manufactured from the same are provided.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 30, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Chun Ho Park, Yong Yeon Hwang, Hyun Taek Oh, Min Jung Kim, Sang Mi Lee, Yeong Min Lee, Eun Soo Kang
  • Patent number: 10351699
    Abstract: The present disclosure relates to a thermoplastic resin composition providing superior low-gloss characteristic, weather resistance, and mechanical properties and an extruded article manufactured from the same. More particularly, the present invention relates to a thermoplastic resin composition including 40 to 70% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer as a matrix resin; 20 to 40% by weight of an acrylic graft copolymer (a) in which 46 to 95% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer is grafted to 5 to 54% by weight of a (meth)acrylate-based rubbery polymer having an average particle diameter of 0.05 to 1 ?m; 1 to 10% by weight of an acrylic graft copolymer (b) in which 5 to 45% by weight of an aromatic vinyl compound-vinyl cyan compound copolymer is grafted to 55 to 95 % by weight of a (meth)acrylate-based rubbery polymer having an average particle diameter of 0.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: July 16, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Chun Ho Park, Yong Yeon Hwang, Hyun Taek Oh, Min Jung Kim, Sang Mi Lee, Yeong Min Lee, Eun Soo Kang
  • Publication number: 20190194369
    Abstract: Disclose herein a polypropylene resin composition for laser welding, which includes a base resin, a thermoplastic elastomer, an inorganic filler, and an organic pigment. The base resin includes an isotactic polypropylene resin and an atactic polypropylene resin.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 27, 2019
    Inventors: Hyun Kyung Kim, Hee Joon Lee, Jae Youn Kim, Seung Wook Park, Se Jeon Lee, Chun Ho Park
  • Publication number: 20190194439
    Abstract: Disclosed is a resin composition for an exterior material of a vehicle. The resin composition may include an amount of about 40 to 90 parts by weight of polypropylene resin having a melt index of about 70 to 110 g/10 min; an amount of about 10 to 40 parts by weight of an olefin block copolymer including an ethylene-based repeating unit and a ?-olefin-based repeating unit having 4 to 30 carbon atoms; an amount of about 10 to 20 parts by weight of needle-shaped inorganic filler having an aspect ratio of about 5 to 10; and an 0.01 to 5 parts by weight of laser-transmitting black colorant, wherein all the parts by weights based on 100 parts by weight of the resin composition. In particular, an average transmittance may range from about 0.01 to about 1% or less in a wavelength of about 380 to 700 nm, and an average transmittance may range from about 15% or greater and less than about 100% in a wavelength of about 800 to 1200 nm.
    Type: Application
    Filed: October 17, 2018
    Publication date: June 27, 2019
    Inventors: Hyun Kyung Kim, Hee Joon Lee, Jin Mi Jung, Jae Jung Yoo, Se Jeon Lee, Chun Ho Park
  • Patent number: 10316175
    Abstract: A polypropylene resin composition includes a base resin including an isotactic polypropylene resin, a first atactic polypropylene resin, and a second atactic polypropylene resin; a thermoplastic elastomer; and an inorganic filler, in which a weight average molecular weight of the second atactic polypropylene resin is higher than a weight average molecular weight of the first atactic polypropylene resin.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: June 11, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, LG Hausys Ltd., Lotte Chemical Corporation
    Inventors: Hyun Gyung Kim, Ki Hyun Sung, Seung Wook Park, Chun Ho Park, Young Gyu You
  • Patent number: 10307946
    Abstract: A method of making a side step of a vehicle includes a bracket that is mounted to a vehicle body and an insert main body that bears weight of passengers. The bracket and the insert main body are integrally provided by using a CFT material through insert-molding, and an injection molding resin is coupled to all over the insert main body where the bracket is coupled through insert-molding so as to form a main frame of the side step.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: June 4, 2019
    Assignees: Hyundai Motor Company, LG Hausys, Ltd.
    Inventors: Seung Mok Lee, Kwang Jae Choi, Nam Cheol Kim, Seung Ryong Jeong, Sung Jun Hong, Woo Jin Jung, Chun Ho Park
  • Publication number: 20190152971
    Abstract: The present disclosure relates to novel imidazo [1,2-?]pyridine derivatives, and more particularly to imidazo [1,2-?]pyridine derivatives having an excellent activity of inhibiting gastric acid secretion, methods for preparing the same, and the use thereof. The imidazo[1,2-?]pyridine derivatives according to the present disclosure have gastric acid secretion inhibitory activity, and thus may be effectively used for the prevention or treatment of gastrointestinal inflammatory diseases or gastric acid-related diseases.
    Type: Application
    Filed: July 4, 2017
    Publication date: May 23, 2019
    Inventors: Jeongmin Kim, Hyunho Lee, Kwangwoo Chun, Chun-Ho Park, Eunsung Jang, Yoonsun Park, Joseph Kim
  • Patent number: 10294360
    Abstract: A polypropylene resin composition includes a base resin, a thermoplastic elastomer, and an inorganic filler. The base resin is a polypropylene-based mixed resin including a first resin, a second resin, a third resin, and a fourth resin. The first resin is a homopolypropylene resin. The second resin, the third resin, and the fourth resin are each a polypropylene-based block copolymer resin. A melt index of the second resin measured at a temperature of 230° C. and under a load of 2.16 kg is higher than a melt index of each of the third resin and the fourth resin measured under the same condition. A flexural modulus of the third resin measured in accordance with ASTM D790 is lower than a flexural modulus of the fourth resin measured under the same condition.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 21, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, LG Hausys, Ltd., Hyundai EP Co., Ltd.
    Inventors: Hyun Gyung Kim, Hee Joon Lee, Eun Seob Shin, Hyeok Lee, Ki Hyun Sung, Chun Ho Park
  • Patent number: 10287385
    Abstract: The present invention relates to a weather-resistant thermoplastic resin, a thermoplastic resin composition containing the same, and a method of preparing the thermoplastic resin composition. More particular, the present invention relates to a thermoplastic resin including a) a hard core having a refractive index of 1.530 to 1.590; b) a crosslinked rubber layer that surrounds the hard core, has an average thickness of 30 to 80 nm, and is prepared by polymerizing an alkyl (meth)acrylate compound and a crosslinking agent; and c) a non-crosslinked hard shell that surrounds the crosslinked rubber layer and is prepared by polymerizing an aromatic vinyl compound and a vinyl cyanide compound, a thermoplastic resin composition including the thermoplastic resin, and a method of preparing the thermoplastic resin composition.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: May 14, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Taek Oh, Yong Yeon Hwang, Min Jung Kim, Chun Ho Park, Sang Mi Lee, Yeong Min Lee, Eun Soo Kang
  • Publication number: 20190029394
    Abstract: The present application relates to a hybrid foam including a hybrid copolymer of polyether polyol and polyester polyol, and to a cosmetic kit including the hybrid foam.
    Type: Application
    Filed: May 30, 2017
    Publication date: January 31, 2019
    Applicant: COSMAX INC.
    Inventors: Sung Yong Kim, Chul Hyun Hwang, Kweon Jong Yoo, Myeong Sam Park, Chun Ho Park
  • Publication number: 20190023892
    Abstract: The present invention relates to a thermoplastic resin composition having excellent weather resistance, according to the present invention, the thermoplastic resin composition has excellent weather resistance, gloss, and impact resistance, and thus may be suitable for use as exterior materials for structures, such as siding and window frames.
    Type: Application
    Filed: November 1, 2017
    Publication date: January 24, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Eun Soo KANG, Yong Yeon HWANG, Hyun Taek OH, Bong Keun AHN, Min Jung KIM, Chun Ho PARK, Yong Hee AN, Jang Won PARK