Abstract: Provided is a styrenated phenol compound represented by Formula 1 in which styrenated phenol and hydroxylamine bind to each other: In Formula 1, n is one of integers of 1 to 3, and R1 and R2 are each hydrogen or one of C1 to C4 alkyl groups. The styrenated phenol compound may maintain curing stimulation property and plasticity, and prevent discoloration when being mixed with a curing agent for an epoxy paint, thereby enhancing exterior quality and storage stability of a product.
Type:
Application
Filed:
September 17, 2014
Publication date:
February 18, 2016
Applicant:
KOREA KUMHO PETROCHEMICAL CO., LTD.
Inventors:
Kee Yoon Roh, Jung Hee Jang, Je Young Park, Jin Eok Kim
Abstract: The present invention relates to a conjugated diene polymer end-modified with an alkoxysilane derivative. More particularly, the present invention relates to an end-modified conjugated diene polymer, wherein an alkoxysilane derivative having an ether group and a dialkylamino group is bonded as end modifier to an end of a conjugated diene polymer, which is useful as a rubber material for a tire tread owing to improved compatibility with an inorganic reinforcing agent and improves dynamic mechanical properties such as wet traction, rolling resistance, Mooney viscosity, processability, etc.
Type:
Grant
Filed:
September 13, 2013
Date of Patent:
February 2, 2016
Assignee:
KOREA KUMHO PETROCHEMICAL CO., LTD.
Inventors:
Hanjoung Cho, Jae Young Ko, Dae Hyung Lee, Cheol Min Park, Sang Chul Ji
Abstract: The present invention relates to a catalyst composition for the synthesis of multi-walled carbon nanotube having high apparent density in a manner of high yield. More particularly, this invention relates to a multi-component metal catalyst composition comprising i) main catalyst of Fe and Mo, ii) inactive support of Al and iii) optional co-catalyst at least one selected from Co, Ni, Ti, Mn, W, Sn or Cu. Further, the present invention affords multi-walled carbon nanotube having 5˜15 nm of fibrous diameter and 0.5˜4 ?m bundle diameter.
Type:
Application
Filed:
August 21, 2015
Publication date:
December 10, 2015
Applicant:
KOREA KUMHO PETROCHEMICAL CO., LTD.
Inventors:
Sang Kyu CHOI, Sang Hyo RYU, Ho Soo HWANG, Chung Heon JEONG, Dong Hoon OH, Yeon Ja LEE, Youngchan JANG
Abstract: The present invention relates to a catalyst composition for the synthesis of multi-walled carbon nanotube having high apparent density in a manner of high yield. More particularly, this invention relates to a multi-component metal catalyst composition comprising i) main catalyst of Fe and Mo, ii) inactive support of Al and iii) optional co-catalyst at least one selected from Co, Ni, Ti, Mn, W, Sn or Cu. Further, the present invention affords multi-walled carbon nanotube having 5˜15 nm of fibrous diameter and 0.5˜4 ?m bundle diameter.
Type:
Grant
Filed:
November 5, 2012
Date of Patent:
November 17, 2015
Assignee:
KOREA KUMHO PETROCHEMICAL CO., LTD.
Inventors:
Sang Kyu Choi, Sang Hyo Ryu, Ho Soo Hwang, Chung Heon Jeong, Dong Hoon Oh, Yeon Ja Lee, Youngchan Jang
Abstract: The present invention relates to a highly conductive carbon nanotube having bundle moieties with ultra low apparent density less than 0.01 g/cc. More specifically, this invention relates to a highly conductive carbon nanotube prepared by following preparation steps of i) preparing the sphere shape of metal catalyst by spray pyrolysis of catalytic metal precursor solution including low molecular weight polymer, ii) synthesizing carbon nanotube using carbon source and obtained metal catalyst according to thermal chemical vapor deposition method; and iii) obtaining a highly conductive carbon nanotube having bundle moieties with ultra-low bulk apparent density.
Type:
Grant
Filed:
February 12, 2013
Date of Patent:
August 18, 2015
Assignee:
KOREA KUMHO PETROCHEMICAL CO., LTD.
Inventors:
Dong Hwan Kim, Wan Sung Lee, Woo Ram Jung, Youngchan Jang
Abstract: A resist additive represented by Formula 1 below and a resist composition including the additive are disclosed. The resist additive improves hydrophobicity of the surface of the resist film to prevent materials from being leached in water during exposure of immersion lithography and is converted to have hydrophilicity by deprotection reaction during development. As a result, a micropattern of a resist film with excellent sensitivity and high resolution is formed. In Formula 1, the substituents are defined as described in the specification.
Type:
Grant
Filed:
December 13, 2012
Date of Patent:
June 23, 2015
Assignee:
KOREA KUMHO PETROCHEMICAL CO., LTD.
Inventors:
Joon Hee Han, Hyun Sang Joo, Jin Ho Kim, Hyun Soon Lim
Abstract: The present invention relates to preparing high 1,4-trans-polybutadiene by polymerizing 1,3-butadiene or a butadiene derivative in a non-polar solvent in the presence of a catalyst system comprising a novel bimetallic cobalt-aluminum adduct, which makes it possible to prevent gel formation, control the molecular weight of the trans-polybutadiene and increase the trans content of the trans-polybutadiene. The catalyst system comprising the novel cobalt-aluminum adduct has a high oxidation state and structural stability, and the reactivity of the catalyst is controlled using novel activation systems comprising various allyloxy aluminum compounds.
Type:
Application
Filed:
November 25, 2013
Publication date:
May 28, 2015
Applicant:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Hanbaek Lee, Gwanghoon Kwag, Hoochae Kim, Seunghyun Do, Bunyeoul Lee, Jihae Park, Ahreum Kim
Abstract: Provided are novel thio compounds and a method for preparing the same. More particularly, there is provided a novel thio compound prepared by reacting an alkylation product of p-cresol and dicyclopentadiene with mercaptan and paraformaldehyde. Unlike existing antioxidants such as 2,6-di-t-butyl-4-methylphenol (BHT) being harmful to the human body due to the high volatility, the novel thio compounds of the present invention, which have the low volatility because of their high molecular weight, give no harm to the human body. Further, with excellent performances, they are suitable to replace the existing antioxidants.
Type:
Grant
Filed:
August 31, 2010
Date of Patent:
May 5, 2015
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Hyung Jae Lee, Chang Kyo Shin, Jin Eok Kim
Abstract: The present invention relates to a process for preparing catalyst composition for the synthesis of carbon nanotube with high yields using the spray pyrolysis method. More particularly, this invention relates to a process for preparing catalyst composition for the synthesis of carbon nanotube comprising the steps of i) dissolving multi-component metal precursors of catalyst composition in de-ionized water; ii) spraying obtained catalytic metal precursor solution into the high temperature reactor by gas atomization method; iii) forming the catalyst composition powder by pyrolysis of gas atomized material; and iv) obtaining the catalyst composition powder, wherein said catalyst composition comprises i) main catalyst selected from Fe or Co, ii) Al, iii) optional co-catalyst at least one selected from Ni, Cu, Sn, Mo, Cr, Mn, V, W, Ti, Si, Zr or Y, iv) inactive support of Mg. Further, the catalyst composition prepared by this invention has a very low apparent density of 0.01˜0.
Type:
Grant
Filed:
May 11, 2011
Date of Patent:
April 14, 2015
Assignee:
Korea Kumho Petrochemical Co., Ltd
Inventors:
Sang-Hyo Ryu, Hyun-Kyung Sung, Namsun Choi, Wan Sung Lee, Dong Hwan Kim, Youngchan Jang
Abstract: Disclosed is an interfacial polymer for a network used as a coupling agent in mixing of rubber-silica. More particularly, the interfacial polymer for a rubber-silica network is a block copolymer containing a copolymer of conjugated diene and vinyl aromatic monomers, in which when used as a coupling agent in the mixing of synthetic rubber and silica (an inorganic material), the polymer enhances silica dispersibility within the rubber, and improves compatibility and processability, resulting in considerable improvement in the dynamic property as well as the mechanical property of the rubber, and when used in a tire, etc., it enhances automobile braking performance and reduces rolling resistance.
Type:
Grant
Filed:
September 20, 2012
Date of Patent:
March 24, 2015
Assignees:
Korea Kumho Petrochemical Co., Ltd., Institute for Research & Industry Cooperation, PNU
Inventors:
Gwang Hoon Kwag, Jong Yeop Lee, Jae Yun Kim, Han Baek Lee, Sang Chul Ji, Hyun Jong Paik, Won Ho Kim, Hee Jeong Kim, Ki Hyun Kim
Abstract: Disclosed are a hydrophilic photoacid generator prepared by copolymerization of a first (meth)acrylic acid ester having a structure represented by the following Formula 1 or 2, with a polymerizable monomer selected from the group consisting of a second (meth)acrylic acid ester, an olefin-based compound and a mixture thereof, each of which contains a functional group selected from the group consisting of a hydroxyl group, a carboxyl group, a lactone group, a nitrile group and a halogen group: wherein respective substituents are defined in the specification, and a resist composition comprising the same. The hydrophilic photoacid generator is uniformly dispersed in a resist film, thus improving a line edge roughness of resist patterns.
Type:
Grant
Filed:
December 13, 2012
Date of Patent:
March 17, 2015
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Dae Kyung Yoon, Kyoung Jin Ryu, Sung Jae Lee, Hyun Sang Joo
Abstract: A system for producing carbon nanotubes includes a reaction chamber in which a process is performed for producing a carbon nanotube on a synthetic substrate; a station part disposed at one side of the reaction chamber and provided with a first transporter for loading/unloading the synthetic substrate to/from the reaction chamber; a first transporter installed inside the station part for loading/unloading synthetic substrates to/from the reaction chamber; a substrate accommodating part in which a substrate to be loaded to the reaction chamber is accommodated or a synthetic substrate unloaded from the reaction chamber waits; a retrieve part for drawing out a synthetic substrate from the substrate accommodating part to retrieve a carbon nanotube produced on the synthetic substrate; a catalyst coating unit configured for coating a synthetic substrate with a catalyst before the synthetic substrate is accommodated in the substrate accommodating part of the station part; and a second transporter for transporting a s
Type:
Grant
Filed:
November 29, 2006
Date of Patent:
December 23, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Sung-Soo Kim, Ho-Soo Hwang, Hyung-Seok Kim, Suk-Won Jang, Suk-Min Choi
Abstract: Provided is a tapered block copolymer having asymmetric vinyl aromatic blocks. The disclosed tapered block copolymer has very superior adhesion properties such as loop tack, 180° peel strength and softening point and may be used to prepare high-quality hot melt adhesives for industrial use.
Type:
Grant
Filed:
March 4, 2011
Date of Patent:
December 16, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Jae Yun Kim, Min Sung Kwon, Eun Kyung Noh
Abstract: A photoacid generator represented by the following formula (1), a method for producing the photoacid generator, and a resist composition containing the photoacid generator are provided. wherein in the formula (1), Y, X, R1, R2, n1, n2 and A+ have the same meanings as defined in the detailed description of the invention. The photoacid generator can maintain an appropriate contact angle at the time of ArF liquid immersion lithography, can reduce defects occurring during liquid immersion lithography, and has excellent solubility in resist solvents and excellent compatibility with resins. Furthermore, the photoacid generator can be produced by an efficient and simple method using an epoxy compound that is industrially easily available.
Abstract: A sulfonium compound represented by formula (1), a photo-acid generator, and a method for producing a sulfonium compound are provided: wherein X represents an electron-donating group; R1 and R2 each represent an alkyl group, a cycloalkyl group, or the like; R3 and R4 each represent an arylene group or a heteroarylene group; R5 and R6 each represent an alkyl group, a cycloalkyl group, or the like; and A? and B? are anions that are different from each other. The sulfonium compound, when used as a photo-acid generator, can produce a uniform and excellent resist pattern.
Type:
Grant
Filed:
December 30, 2011
Date of Patent:
October 21, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Hyun Sang Joo, Dong Chul Seo, Dae Kyung Yoon, Dae Hyeon Shin
Abstract: A sulfonium compound represented by the following formula (1), a photoacid generator containing the sulfonium compound, and a resist composition containing the photoacid generator are provided: wherein X represents an electron donor group; R1 and R2 each independently represent an alkyl group or the like; R4 to R6 each independently represent an alkyl group, or the like; R3 represents a cyclic alkenediyl group or the like; and ?A represents an anion. The sulfonium compound has a photon yield that is controllable by introducing different absorbers to the cation region in one molecule, can address the inconvenience of using a mixture of different photoacid generators when the sulfonium compound is applied as a photoacid generator, has excellent miscibility in a resist, and has enhanced resolution and line edge roughness.
Type:
Grant
Filed:
July 25, 2012
Date of Patent:
October 7, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Jung Hoon Oh, Dae Kyung Yoon, Seung Duk Cho, So Jeong Park
Abstract: Provided is a copolymer. The copolymer, when incorporated into a resist composition, can provide a satisfactory resist pattern with high sensitivity, high resolution, high etching resistance and a reduced amount of outgas.
Type:
Grant
Filed:
December 20, 2011
Date of Patent:
October 7, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Jung-Hoon Oh, Joon Hee Han, Tae Gon Kim, Hyun Sang Joo
Abstract: In a method of manufacturing a carbon nanotube, a boat configured to receive substrates is positioned outside of a synthesis space where the carbon nanotube is synthesized. The substrates are loaded into the boat. The boat is then transferred to the synthesis space. A process for forming the carbon nanotube is performed on the substrates in the synthesis space to form the carbon nanotube. Thus, the carbon nanotube may be effectively manufactured.
Type:
Grant
Filed:
November 30, 2007
Date of Patent:
September 16, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd
Inventors:
Ho-Soo Hwang, Sung-Soo Kim, Jung-Keun Cho
Abstract: Provided is a method for preparing 4,4?-dinitrodiphenylamine (4,4?-DNDPA) in high yield via the NASH reaction using a mixture of a bis-quaternary ammonium base and a base catalyst for the reaction of urea with nitrobenzene, and a method of preparing 4,4?-bis(alkylamino)diphenylamine (4,4?BAADA) in high yield and purity by hydrogenating the resulting 4,4?-DNDPA with a ketone in the presence of hydrogen and hydrogenation catalyst. The catalyst complex used in the present invention allows easy recovery, provides superior alkaline stability and is capable of reducing production cost.
Type:
Grant
Filed:
June 17, 2011
Date of Patent:
September 16, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Jin-Eok Kim, Seoung-IL Kim, Han Jin Kwag, Sang hee Park
Abstract: Disclosed are a copolymer for organic antireflective films containing a repeating unit represented by the following formula (1), a monomer for the copolymer, and an organic antireflective film composition including the copolymer: wherein in the formula (1), R1, R2, R3, A, m and n respectively have the same meanings as defined in the detailed description of the invention. The organic antireflective film composition including the copolymer for organic antireflective films has an increased refractive index and exhibits excellent effects when produced into an antireflective film, and hydrophilicity and hydrophobicity of the coating film produced from the composition can be regulated, so that excellent compatibility with resists can be obtained.
Type:
Grant
Filed:
April 26, 2012
Date of Patent:
September 2, 2014
Assignee:
Korea Kumho Petrochemical Co., Ltd.
Inventors:
Jin Han Lee, Shin Hyo Bae, Seung Hee Hong, Eun Hee Han