Patents Assigned to Hanwha Chemical Corporation
  • Publication number: 20150224479
    Abstract: A method of preparing a metal catalyst for preparing carbon nanotubes and a method of preparing carbon nanotubes using same. In one embodiment, a deposition-precipitation method is used. The method includes preparing a support dispersion solution in which a solid support is dispersed in a solvent; and injecting a metal precursor salt solution and a pH adjusting solution into the dispersion solution to prepare a mixed solution and adsorbing metal oxides or metal hydroxides formed therefrom on a surface of the solid support to prepare a catalyst particle.
    Type: Application
    Filed: September 17, 2013
    Publication date: August 13, 2015
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Shinje Cho, Young Kwang Kim, Su Young Park, Hana Kang, Young Chul Choi
  • Patent number: 9093580
    Abstract: Provided is a method of manufacturing a solar cell, wherein a solar cell is manufactured by combining a damage removal etching process, a texturing process and an edge isolation process. The method is advantageous in that RIE and DRE are conducted, and then DRE/PSG and/or an edge isolation removal process are simultaneously conducted, so that the movement of a substrate (that is, a wafer) is minimized, thereby reducing the damage rate of the substrate.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: July 28, 2015
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Deoc Hwan Hyun, Jae Eock Cho, Dong Ho Lee, Gui Ryong Ahn, Hyun Cheol Ryu, Yong Hwa Lee, Gang II Kim
  • Patent number: 9051179
    Abstract: A continuous method for functionalizing a carbon nanotube includes preparing a carbon nanotube solution containing a nitro compound represented by chemical formula 1 as R—(NOx)y wherein R is an alkyl group of C1 to C7 or an aryl group of C6 to C20 and x and y are integers of 1 to 3 independently, a carbon nanotube and a solvent. An oxidizer for forming a nitric acid selected from the group consisting of the carbon nanotube, oxygen, air, ozone, hydrogen peroxide and a mixture thereof is mixed with the carbon nanotube solution at a front end of a functionalizing reactor and the carbon nanotube mixture is fed into the functionalizing reactor. A functionalized carbon nanotube is prepared by treating the carbon nanotube mixture fed into the functionalizing reactor under a subcritical water or supercritical water condition of 50 to 400 atm.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: June 9, 2015
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Jin Seo Lee, Joo Hee Han, Seung-Hoe Do, Seong Cheol Hong
  • Patent number: 9045345
    Abstract: Provided is a continuous method and apparatus of purifying carbon nanotubes. The continuous method and apparatus of purifying carbon nanotubes is characterized in a first purifying step for injecting a carbon nanotube liquid mixture containing an oxidizer into a purifying reactor under a sub-critical water or supercritical water condition at a pressure of 50 to 400 atm and a temperature of 100 to 600° C. to obtain a purified product, thereby removing amorphous carbon and producing the carbon nanotube product.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: June 2, 2015
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Joo Hee Han, Jin Seo Lee, Seung-Hoe Do, Seong Cheol Hong
  • Publication number: 20150129026
    Abstract: The present invention relates to an emitter wrap-through solar cell and a method for preparing the same. The solar cell according to the present invention has a structure that may minimize generation of leakage current and minimize energy conversion efficiency measurement error. And, the preparation method of a solar cell according to the present invention may easily confirm the alignment state of the electrode, and thus, provide more improved productivity.
    Type: Application
    Filed: May 14, 2013
    Publication date: May 14, 2015
    Applicant: Hanwha Chemical Corporation
    Inventors: Woo-Won Jung, Jae Eock Cho, Hong Gu Lee, Deoc Hwan Hyun, Yong Hwa Lee
  • Patent number: 9028724
    Abstract: Provided is a method for preparing an aqueous dispersion of metal nanoparticles having superior dispersibility and being sinterable at low temperature by modifying the surface of metal nanoparticles having hydrophobic groups with hydrophilic groups. Specifically, by treating the surface hydrophobic groups of the metal nanoparticles with a surface modification solution containing a surfactant and a wetting-dispersing agent, the treatment throughput can be improved about 10-fold and the particles can be monodispersed without agglomeration. Further, by using an antioxidant and a ligand removal agent in the solution, denaturation and oxidation of the particles can be prevented and the high-boiling-point hydrophobic ligands can be eliminated effectively. The hydrophilically treated metal nanoparticles may be dispersed in an aqueous-based solvent to prepare a metal ink sinterable at low temperature.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: May 12, 2015
    Assignee: Hanwha Chemical Corporation
    Inventors: Won Il Son, Eui Duk Kim, Seok Heon Oh
  • Patent number: 9028875
    Abstract: Provided is an iron oxide nanocapsule which has extremely excellent water dispersibility, which is very stable in the body and which has very excellent MRI contrast ability, a method of manufacturing the same, and an MRI contrast agent using the same. The method of manufacturing the iron oxide nanocapsule includes the steps of: thermally decomposing an iron complex to prepare hydrophobic ligand-bonded iron oxide nanoparticles; and encapsulating the hydrophobic ligand-bonded iron oxide nanoparticles by a carboxymethyldextrandodecylamine conjugate encapsulation material or a dextran-linoleic acid conjugate encapsulation material to form an iron oxide nanocapsule.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 12, 2015
    Assignee: Hanwha Chemical Corporation
    Inventors: Eun Byul Kwon, Bong-Sik Jeon, Eung Gyu Kim, Ju Young Park, Wan Jae Myeong
  • Publication number: 20150010457
    Abstract: An apparatus for preparing an electrode-active material, comprising a reactor that produces the electrode-active material by using a high-temperature high-pressure hydrothermal synthesis method; and decompression equipment that decreases the pressure of a fluid containing the electrode-active material. The decompression equipment includes a pipe-type or a tube-type decompressor.
    Type: Application
    Filed: January 14, 2013
    Publication date: January 8, 2015
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Ki Taeg Jung, Sei Ung Park, Kyu Ho Song, Seong Jae Lim, Kee Do Han
  • Patent number: 8916650
    Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: December 23, 2014
    Assignee: Hanwha Chemical Corporation
    Inventors: Ji-Woo Kim, Jee-Hyong Lee, Jung-Ho Kong, Yong-Kook Jung, Sang-Hyun Cho
  • Patent number: 8906346
    Abstract: Provided are a contrast agent for contrast imaging lymph node, which includes iron oxide nanoparticles dispersed and stabilized in an aqueous medium by a mussel adhesive protein-mimetic copolymer, a method for contrast enhanced lymphography using the foregoing contrast agent, and a method for diagnosis of lymph node cancers using the foregoing contrast agent. Using such a mussel adhesive protein-mimetic copolymer, the surface of iron oxide is modified and dispersed well in water to prepare a colloidal solution, which in turn forms the contrast agent containing the colloidal solution. The inventive contrast agent does not have toxicity and is easily taken up to the lymph node to exhibit excellent contrast imaging effects. The contrast agent of the present invention is useful for diagnosis of metastatic cancers.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: December 9, 2014
    Assignee: Hanwha Chemical Corporation
    Inventors: Ju Young Park, Wan Jae Myeong, Bong-Sik Jeon, Eung Gyu Kim, Eun Byul Kwon, Taeghwan Hyeon, Daishun Ling
  • Patent number: 8895190
    Abstract: Disclosed is a method for preparing a lithium-metal composite oxide, the method comprising the steps of: (a) mixing an aqueous solution of one or more transition metal-containing precursor compounds with an alkalifying agent and a lithium precursor compound to precipitate hydroxides of the transition metals; (b) mixing the mixture of step (a) with water under supercritical or subcritical conditions to synthesize a lithium-metal composite oxide, and drying the lithium-metal composite oxide; and (c) subjecting the dried lithium-metal composite oxide either to calcination or to granulation and then calcination. Also disclosed are an electrode comprising the lithium-metal composite oxide, and an electrochemical device comprising the electrode. In the disclosed invention, a lithium-metal composite oxide synthesized based on the prior supercritical hydrothermal synthesis method is subjected either to calcination or to granulation and then calcination.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: November 25, 2014
    Assignees: LG Chem, Ltd., Hanwha Chemical Corporation
    Inventors: Sung-Kyun Chang, Eui-Yong Bang, Min-Chul Jang, Sang-Hoon Choy, Ki-Young Lee, Wan-Jae Myeong, Kyu-Ho Song, Joo-Hyeong Lee, Young-Sik Hahn, Myung-Ho Cho, Yong-Tae Lee
  • Publication number: 20140328768
    Abstract: Provided is an iron oxide nanocapsule which has extremely excellent water dispersibility, which is very stable in the body and which has very excellent MRI contrast ability, a method of manufacturing the same, and an MRI contrast agent using the same. The method of manufacturing the iron oxide nanocapsule includes the steps of: thermally decomposing an iron complex to prepare hydrophobic ligand-bonded iron oxide nanoparticles; and encapsulating the hydrophobic ligand-bonded iron oxide nanoparticles by a carboxymethyldextrandodecylamine conjugate encapsulation material or a dextran-linoleic acid conjugate encapsulation material to form an iron oxide nanocapsule.
    Type: Application
    Filed: August 31, 2011
    Publication date: November 6, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Eun Byul Kwon, Bong Sik Jeon, Eung Gyu Kim, Ju Young Park, Wan Jae Myeong
  • Publication number: 20140316115
    Abstract: The present invention relates to a method for preparing a population of antibodies to have high purity and high quality by removing antibody isoforms and impurities through the use of a cation exchange column, a hydrophobic interaction column, and an anion exchange column successively, without using a protein A column; and to a population of antibodies prepared by the above method.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 23, 2014
    Applicant: Hanwha Chemical Corporation
    Inventors: Ji Yong Yoon, Dong Eun Lee, Won Kyum Kim, Jeong Won Youn, Jung Eun Baek
  • Publication number: 20140316114
    Abstract: The present invention relates to a method for separating and preparing a TNFR-Fc fusion protein using hydrophobic interaction chromatography (HIC). More particularly, the present invention relates to a method for separating and preparing a highly pure active protein from clipped proteins due to displacement effect by adjusting the conductivity of a protein sample using a high concentration of salt solution and by adjusting a loading amount thereof, and a TNFR-Fc fusion protein prepared by the method.
    Type: Application
    Filed: August 17, 2012
    Publication date: October 23, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Hye Soon Won, Byung Je Sung, Yong Ho Ahn, Sang Kyung Park
  • Publication number: 20140295366
    Abstract: Preparation of an electrode-active material, which uses a reactor to produce an electrode-active material by using a supercritical hydrothermal synthesis method, and a double-pipe type heat exchanger which cools the product discharged from the reactor to a subcritical range or below it.
    Type: Application
    Filed: December 10, 2012
    Publication date: October 2, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Kyu Ho Song, Sei Ung Park, Seong Jae Lim, Ki Taeg Jung, Kee Do Han
  • Publication number: 20140275425
    Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.
    Type: Application
    Filed: July 16, 2013
    Publication date: September 18, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Ji-Woo Kim, Jee-Hyong Lee, Jung-Ho Kong, Yong-Kook Jung, Sang-Hyun Cho
  • Patent number: 8822714
    Abstract: The present invention relates to a more advanced preparation method of organic-transition metal hydride as a hydrogen storage material, precisely a more advanced preparation method of organic-transition metal hydride containing aryl or alkyl group that facilitates safe and reverse storage of massive amount of hydrogen. The present invention relates to a preparation method of an organic-transition metal hydride comprising the steps of preparing a complex reducing agent composition by reacting alkali metal, alkali earth metal or a mixture thereof and (C10-C20) aromatic compound in aprotic polar solvent and preparing organic-transition metal hydride by reacting the prepared complex reducing agent composition and organic transition metal halide. The method of the present invention has advantages of minimizing the numbers and the amounts of byproducts by using a complex reducing agent and producing organic-transition metal hydride safely without denaturation under more moderate reaction conditions.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 2, 2014
    Assignee: Hanwha Chemical Corporation
    Inventors: Jong Sik Kim, Dong Ok Kim, Hee Bock Yoon, Jaesung Park, Hyo Jin Jeon, Gui Ryong Ahn, Dong Wook Kim, Jisoon Ihm, Moon-Hyun Cha
  • Publication number: 20140234689
    Abstract: The present invention relates to a packaging material for a battery including a deposited body consisting of an outermost layer, a barrier layer, and an innermost layer, wherein a heat dissipation layer consisting of a carbon material or a mixture of a carbon material and a resin is formed to afford a slip property, flame resistance, printability, and the like as well as a heat dissipation property to the packaging material. The present invention also relates to a packaging material for a battery having a heat dissipation function, containing a carbon material in at least one layer of the above layers.
    Type: Application
    Filed: July 20, 2012
    Publication date: August 21, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Ki-Hong Kim, Jeong-Gyoum Kim, Jong-Woon Yoon, Hong-Keon Kim
  • Publication number: 20140161734
    Abstract: Disclosed are a composition including hydrophilic nanoparticles that have a monosaccharide-phosphate or a derivative thereof adhered to the surface thereof, a colloidal solution of the composition dispersed in water, and a magnetic resonance imaging contrast agent including the colloidal solution. According to the present invention, nanoparticles having biocompatibility and excellent water-dispersibility can be prepared by modifying the surface of inorganic nanoparticles. The prepared nanoparticles may be effectively used in a variety of applications including, for example, in vivo imaging applications such as an MRI contrast agent, nano-electronic convergence technologies such as a quantum dot light emitting device, biomedical applications such as hyperthermia, or the like. Moreover, compared to existing nanoparticles dispersed by a dispersion stabilizer known in the art, excellent dispersion stability and a relatively small hydrodynamic diameter may be attained.
    Type: Application
    Filed: August 3, 2012
    Publication date: June 12, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Eung Gyu Kim, Bong-Sik Jeon, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong
  • Patent number: 8715670
    Abstract: The present invention relates to a human monoclonal antibody that specifically binds to VCAM-1, and a therapeutic composition for the treatment of inflammatory disease or cancer comprising the same. The human monoclonal antibody according to the present invention shows a strong affinity to VCAM-1 expressed on human or mouse endothelial cell, effectively inhibits leukocyte adhesion to activated endothelial cells expressing VCAM-1, and shows a low immunogenicity, thereby being used for the treatment of cancer or inflammatory disease such as asthma, rhinitis, arthritis, multiple sclerosis, bowel disease, arteriosclerosis, myocardial infarction and transplant rejection.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: May 6, 2014
    Assignee: Hanwha Chemical Corporation
    Inventors: Jung Tae Lee, Kyung Duk Moon, Ji Yong Yoon, Byung Je Sung, Dong Heon Lee, Il Sun Lee, Dong Eun Lee, Su Yeon Ryu, Young Woo Park, So Young Choi, Ji Hyun Park, Myeoung Hee Jang