Abstract: Provided area carbon nanotube composite material obtained by treating a mixture including carbon nanotubes, at least one carbon compound other than carbon nanotubes and a dispersion medium under a sub-critical or super-critical condition of 50-400 atm, and a method for producing the same. More particularly, the method for producing a carbon nanotube composite material, includes: introducing a mixture including carbon nanotubes, at least one carbon compound other than carbon nanotubes and a dispersion medium into a preheating unit under a pressure of 1-400 atm to preheat the mixture; treating the preheated mixture under a sub-critical or super-critical condition of 50-400 atm; cooling and depressurizing the resultant product to 0-1000 C and 1-10 atm; and recovering the cooled and depressurized product. Provided also is an apparatus for producing a carbon nanotube composite material in a continuous manner.
Type:
Grant
Filed:
June 30, 2010
Date of Patent:
February 14, 2017
Assignee:
Hanwha Chemical Corporation
Inventors:
Man Woo Jung, Seong Yun Jeon, Seong Cheol Hong, Joo Hee Han, Joo Seok Oh, Jin Seo Lee, Seung Hoe Do
Abstract: Provided is a resin composition for electromagnetic interference shielding. More particularly, provided is a resin composition having superior dispersibility and impact relaxation and high conductivity, the resin comprising: (a) 100 parts by weight of a resin; based on 100 parts by weight of the resin, (b) 0.1 to 15 parts by weight of a carbon nanotube surface-modified in a condition of the absence of oxidant; and (c) 1 to 40 parts by weight of a carbon compound, a metal, a metal compound, or a mixture thereof. The resin composition for electromagnetic interference shielding, comprising a carbon hydride composite, is specifically useful in an electronic control unit material for weight reduction of car, and thus can be replaced with a high-priced heavy metal material.
Type:
Grant
Filed:
January 4, 2013
Date of Patent:
November 29, 2016
Assignee:
HANWHA CHEMICAL CORPORATION
Inventors:
Jin Seo Lee, Man Woo Jung, Seung hoe Do, Seong Yun Jeon, Jae Yun Lim
Abstract: A batch reactor of which an installation structure of baffles is improved is provided. A batch reactor includes: a reactor main body containing a reactant; agitation blades provided in the reactor main body to agitate the reactant; a motor coupled to a rotation shaft of the agitation blades to rotate the agitation blades; and a plurality of baffles provided between an inner wall of the reactor main body and the agitation blades, and disposed at a distance from each other along a circumferential direction of the reactor main body. Each of the plurality of baffles includes a plurality of pipes disposed to be adjacent to each other along a radial direction and a circumferential direction of the reactor main body.
Type:
Application
Filed:
December 18, 2014
Publication date:
November 17, 2016
Applicant:
HANWHA Chemical Corporation
Inventors:
Ki Taeg JUNG, Kee Do Han, Young Jo KIM, Hyo Suk KIM, Kyong Jun YOON, Hye Won LEE
Abstract: Provided are a pharmaceutical composition including iron oxide nanoparticles for preventing or treating iron deficiency and iron deficiency anemia accompanied thereby, and a preparation method thereof.
Type:
Application
Filed:
December 23, 2014
Publication date:
October 20, 2016
Applicant:
HANWHA CHEMICAL CORPORATION
Inventors:
Bong Sik JEON, Eun Byul KWON, Eung Gyu KIM, Wan Jae MYEONG, Ju Young PARK
Abstract: The present invention relates to a method for manufacturing polysilicon. According to the present invention, meltdown can be prevented during the growth of silicon rod, and a polycrystalline silicon rod having a larger diameter can be shortly manufactured with a minimal consumption of energy.
Type:
Grant
Filed:
September 26, 2012
Date of Patent:
October 18, 2016
Assignee:
HANWHA CHEMICAL CORPORATION
Inventors:
Hyun-Cheol Ryu, Jea Sung Park, Dong-Ho Lee, Eun-Jeong Kim, Gui Ryong Ahn, Sung Eun Park
Abstract: The present invention relates to a metallocene catalyst system comprising an antistatic agent and a preparation method for polyolefin using the same. The present invention can not only maintain the inherent activity of the catalyst but also minimize reactor fouling and particle agglomeration in the preparation of a polyolefin using the gas-phase polymerization process, thereby allowing to the process to be operational with more stability.
Type:
Application
Filed:
April 2, 2014
Publication date:
October 13, 2016
Applicant:
HANWHA CHEMICAL CORPORATION
Inventors:
Hyun Seung LEE, Jun Ho SEO, Dong Wook JEONG, Eun Jung HEO
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:
Grant
Filed:
August 3, 2012
Date of Patent:
October 4, 2016
Assignee:
HANWHA CHEMICAL CORPORATION
Inventors:
Eung Gyu Kim, Bong-Sik Jeon, Eun Byul Kwon, Ju Young Park, Wan Jae Myeong
Abstract: This disclosure relates to porous carbon and a method of preparing the same. The porous carbon of the present invention is derived from a carbonitride compound having a composition comprising metal and nitrogen. The porous carbon of the present invention comprises both micropores and mesopores, and has a large specific surface area, and thus, may be usefully used in various fields.
Type:
Grant
Filed:
July 24, 2013
Date of Patent:
August 30, 2016
Assignees:
Hanwha Chemical Corporation, SNU R&DB Foundation
Inventors:
Shin Hoo Kang, Ji Soon Ihm, Dong Ok Kim, Moon-Su Seo
Abstract: This disclosure relates to a method for purification of off-gas and a device for the same. More particularly, this disclosure relates to a method for purification of off-gas that removes hydrogen chloride from the off-gas discharged after conducting a polysilicon deposition process by chemical vapor deposition, and can separate hydrogen of high purity, and a device for the same.
Type:
Application
Filed:
August 12, 2014
Publication date:
June 16, 2016
Applicant:
HANWHA CHEMICAL CORPORATION
Inventors:
Gil Ho KIM, Won Ik LEE, Gui Ryong AHN, Bo Kyung KIM
Abstract: The present invention relates to a method of preparing biocompatible iron oxide nanoparticles by coating iron oxide nanoparticles having improved magnetism via annealing treatment using salt particles with a hydrophilic material and to a magnetic resonance imaging (MRI) contrast agent including the iron oxide nanoparticles prepared thereby. Among hydrophilic materials, carboxymethyl dextran (CM-dextran) is the most efficient in terms of stabilizing the annealed iron oxide nanoparticles and exhibiting contrast effects.
Type:
Grant
Filed:
February 6, 2012
Date of Patent:
May 31, 2016
Assignee:
HANWHA CHEMICAL CORPORATION
Inventors:
Taeghwan Hyeon, Yuanzhe Piao, Yong Il Park
Abstract: The present invention relates to an antibody-drug conjugate comprising a drug conjugated to an antibody, a preparation method thereof and the use thereof.
Type:
Application
Filed:
June 24, 2014
Publication date:
May 19, 2016
Applicant:
Hanwha Chemical Corporation
Inventors:
Young Min Kim, Min Ji Ko, Jae Yong Kim, Ju Hee Kim, Kyung Duk Moon, Dae Hae Song, Jae Hyun Eom, Jin Won Jung
Abstract: The present invention provides a method of manufacturing a phosphorus-doped nickel nanoparticle. The method includes the steps of: mixing a nickel solution including a nickel compound and a solvent, a seed particle, and a phosphorus-containing reductant in an arbitrary order to prepare a mixed solution; and adjusting pH of the mixed solution such that the mixed solution becomes acidic. According to the method, a phosphorus-doped nickel nanoparticle that is suitable to be applied to solar cell electrodes requiring low contact resistance can be manufactured.
Abstract: The present invention relates to a method for manufacturing a conductive metal thin film, including: preparing a conductive metal coating solution by adding carboxylic acid to a dispersion including a conductive metal particle having a core/shell structure; coating the conductive metal coating solution on a top portion of a substrate, heat-treating it, and removing an metal oxide layer of the surface of the conductive metal particle having the core/shell structure; and forming a thin film of the conductive metal particle from which the metal oxide layer is removed.
Type:
Grant
Filed:
October 26, 2010
Date of Patent:
April 19, 2016
Assignees:
Hanwha Chemical Corporation, Industry-Academic Cooperation Foundation, Yonsei University
Inventors:
Won Il Son, Sun Jin Park, Eui Duk Kim, Seok Heon Oh, Joo Ho Moon, Kyoo Hee Woo, Dong Jo Kim
Abstract: Disclosed herein is a conductive particle, including: a base particle containing a metal; a seed particle formed on a surface of the base particle; and a first metal layer formed on the base particle, wherein the first metal layer includes a protrusion surrounding the seed particle. The conductive particle has excellent specific resistance characteristics when it is sintered because it has nanosized protrusions formed on the surface of a metal base particle.
Abstract: The present invention relates to a method for preparing a polyethylene wax, comprising the step of polymerizing ethylene monomers using a metallocene catalyst in a loop reactor, and more particularly, to a method for polymerizing a polyethylene wax using a metallocene catalyst and a double loop reactor. According to the present invention, a polyethylene wax having a uniform and narrow molecular weight distribution can be polymerized with high activity.
Abstract: The present invention relates to a resin for a blister package and a preparation method thereof. The resin for a blister package according to the present invention is a water-soluble resin which can minimize a hazard to a human body due to residual of a solvent, and particularly, a resin layer formed by using the resin can show an excellent heat seal property and is hardly deformed at the heat seal temperature condition.
Type:
Application
Filed:
December 17, 2013
Publication date:
December 17, 2015
Applicant:
HANWHA CHEMICAL CORPORATION
Inventors:
Jeong Hyun Choi, Sin-Won Kang, Jung Ho Kong, Sang Hyun Cho
Abstract: The present invention relates to a method for preparing trichlorosilane. According to the method for preparing trichlorosilane of the present invention, trichlorosilane may be obtained with improved yield using silicon where copper silicide is formed.
Type:
Application
Filed:
February 26, 2014
Publication date:
November 19, 2015
Applicant:
Hanwha Chemical Corporation
Inventors:
Gil Ho Kim, Gui Ryong Ahn, Won Ik Lee, Joon Hwan Kim, Kyung Hoon Cho
Abstract: Provided are a mussel adhesive protein-mimetic dispersion stabilizing agent to disperse nanoparticles in an aqueous medium, a colloidal solution including nanoparticles dispersed and stabilized by the dispersion stabilizing agent, and a contrast agent including the colloidal solution. More particularly, the mussel adhesive protein-mimetic dispersion stabilizer is a polyethyleneimine-graft-(poly-ethyleneglycol;polyDOPA) PEI-graft-(PEG;PDOPA). The graft polymer is formed of two parts. One is polyethyleneglycol grafted with a polyethyleneime which has an affinity to an aqueous medium, and the other is polyDOPA which has an affinity to the surface of nanoparticles. Because of those characteristics, the stabilizer shows a stable dispersion of nano particles in the aqueous medium.
Type:
Grant
Filed:
December 28, 2011
Date of Patent:
October 27, 2015
Assignee:
Hanwha Chemical Corporation
Inventors:
Taeghwan Hyeon, Kun Na, Daishun Ling, Wooram Park
Abstract: Disclosed herein is a polyvinyl chloride resin, including: a first particle group having a particle diameter of 0.01 ?m or more and less than 1 ?m; and a second particle group having a particle diameter of 1 to 10 ?m, wherein the volume ratio of the first particle group to the second particle group is 1:0.4 to 1:1.
Type:
Application
Filed:
November 1, 2013
Publication date:
October 1, 2015
Applicant:
Hanwha Chemical Corporation
Inventors:
Jeong Hwan Ko, Jung Ho Kong, Ji Eun Namgoong
Abstract: There are provided a heat dissipation paint composition capable of forming a heat dissipation layer having excellent salt water resistance, coating film strength, adherence property, scratch resistance, and the like, together with excellent heat dissipation property, in various products, and a heat dissipation structure. The heat dissipation paint composition includes: an epoxy resin; a curing agent; a carbon-based filler having a functional group including at least one selected from the group consisting of an amine group, an amide group, a carboxyl group and a hydroxyl group bound thereto; and a solvent.
Type:
Application
Filed:
September 23, 2013
Publication date:
October 1, 2015
Applicant:
HANWHA CHEMICAL CORPORATION
Inventors:
Seong Yun Jeon, Seung Hoe Do, Jin Seo Lee