Patents Assigned to Korea Kumho Petrochemical Co., Ltd.
  • Apparatus and system for manufacturing a carbon nanotube
    Patent number: 8834632
    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
  • Method for preparation of 4,4?-dinitrodiphenylamine and 4,4?-bis(alkylamino)diphenylamine with the base catalyst complex
    Patent number: 8835687
    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
  • Copolymer for organic antireflective film, monomer, and composition comprising the copolymer
    Patent number: 8822617
    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
  • TERMINAL MODIFIER FOR CONJUGATED DIENE POLYMERS
    Publication number: 20140200306
    Abstract: Disclosed is a terminal modifier for conjugated diene polymers. The terminal modifier has both at least two amine groups and at least one alkoxysilane group. A terminally modified conjugated diene polymer which is coupled at the terminus with the terminal modifier, and a polymer composition for use in tires, comprising the terminally modified, conjugated diene polymer are also provided. When applied to tire treads, the polymer composition comprising the terminally modified, conjugated diene polymer significantly increases the disperability and binding to rubber of silica, thereby greatly contributing to an improvement of the tire treads in dynamic properties including wet traction, rolling resistance, Mooney viscosity and processability.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 17, 2014
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Hanjoung Cho, Young Hoon Ko
  • Acid generating agent for chemically amplified resist compositions
    Patent number: 8779183
    Abstract: An acid generating agent used for chemically amplified resist compositions is provided, which agent is represented by the following formula (1): wherein X represents a monocyclic or polycyclic hydrocarbon group having 3 to 30 carbon atoms, and having at least one hydrogen atom on the ring substituted by an alkyl or alkoxy group which may be unsubstituted or substituted with a group selected from an ether group, an ester group, a carbonyl group, an acetal group, an epoxy group, a nitrile group and an aldehyde group, or by a perfluoroalkyl group, a hydroxyalkyl group, or a cyano group; R6 is an alkyl group, an alkoxy group, or a heteroatom selected from the group consisting of N, S and F; m is an integer from 0 to 2; and A+ is an organic counterion.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: July 15, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jung-Hoon Oh, Dong-Cheol Seo, Hyun-Sang Joo, Chang-Soo Lee
  • Copolymer for resist comprising novel acryl based monomer and resin composition for resist comprising the same
    Patent number: 8771922
    Abstract: A resist resin composition includes 100 parts by weight of a copolymer represented by Formula 3 below; 0.5 to 1.5 parts by weight of a photoacid generator and 700 to 1,500 parts by weight of a solvent: wherein R1, R2, and R3 are each independently a C1-30 alkyl group, a C3-30 cycloalkyl group, an ether group, an ester group, a carbonyl group, an acetal group, an epoxy group, a nitrile group, or an aldehyde group, R4, R5, and R6 are each independently hydrogen or a methyl group, and l, m, n, and o each independently refer to the number of repeating units in a main backbone and satisfy the conditions: l+m+n+o=1, 0?l/(l+m+n+o)<0.4, 0<m/(l+m+n+o)<0.6, 0?n/(l+m+n+o)<0.6, and 0<o/(l+m+n+o)<0.4.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: July 8, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jin Bong Shin, Jin Ho Kim, Dae Hyeon Shin, Seung Jae Lee
  • Water-soluble resin composition and method of forming fine patterns by using the same
    Patent number: 8765358
    Abstract: A water-soluble resin composition for forming fine patterns comprising water-soluble polymer represented by Chemical Formula 1 as below and the first water-soluble solvent, is coated and heated on a photoresist layer having at least one contact hole to reduce a size of the at least one contact hole. (In Chemical Formula 1, each of R1, R2, R3 and R5 independently represents an alkyl group of C1-30 or an cyclo alkyl group of C3-30 which respectively have one selected from the group consisting of hydrogen, an ether group, an ester group, a carbonyl group, an acetal, an epoxy group, a nitril group, an amine group, and an aldehyde group; each of R4, R6, R7 and R8 independently represents hydrogen or a methyl group; n represents an integer of 0 to 5; a represents a real number of 0.05 to 0.5; each of b, c and d respectively represents a real number of 0 to 0.7; and a+b+c+d=1).
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: July 1, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Sang Wook Park, So Jung Park, Dong-Chul Seo
  • Method for preparation of 4,4?-dinitrodiphenylamine and 4,4?-bis(alkylamino)diphenylamine by using 4-nitroaniline
    Patent number: 8759587
    Abstract: Provided is a method of preparing 4,4?-dinitrodiphenylamine (4,4?-DNDPA) in high yield by reacting 4-nitroaniline with excess nitrobenzene via the NASH reaction, 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 compound in the presence of hydrogen and hydrogenation catalyst. The disclosed process is simple, allows selective preparation of 4,4?-DNDPA without byproducts, and thus allows preparation of 4,4?-BAADA in high yield without a complicated purification procedure.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 24, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jin-Eok Kim, Seoung-Il Kim, Han Jin Kwag, Sang hee Park
  • Organic anti reflective layer composition
    Patent number: 8748081
    Abstract: Disclosed is an organic antireflective film composition which includes a monomer containing two or more thiol groups and a monomer containing two or more vinyl groups, as crosslinking agents. When the organic antireflective film composition is used, an antireflective film formed from the composition can be rapidly etched in an ultrafine pattern forming process, and the curing rate can be increased, while the etching rate is increased, without using an acid generator and a curing agent or by using the agents only in small amounts.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: June 10, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jin Han Lee, Shin Hyo Bae, Seung Hee Hong, Eun Hee Han
  • Synthetic rubber with anti-oxidants for rubber
    Patent number: 8729169
    Abstract: Disclosed are a novel anti-oxidant for rubber and a synthetic rubber including the same. The disclosed anti-oxidant contains a thio compound. The rubber including the anti-oxidant has excellent thermostability at a temperature of 100° C. or higher, and the anti-oxidant shows a low volatility due to its high molecular weight thus being applicable to manufacture environment-friendly rubber.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 20, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Hyung Jae Lee, Chang Kyo Shin, Jin Eok Kim
  • ALKYLALKOXYSILANE COMPOUNDS CONTAINING ETHER GROUP AND DIALKYLAMINO GROUP AND PROCESS FOR PREPARING THE COMPOUNDS
    Publication number: 20140088320
    Abstract: The present invention relates to an alkylalkoxysilane compound of a novel structure which has an ether group and an dialkylamino group in an alkyl chain of the alkylalkoxysilane and thus has remarkably improved storage stability and hydrophilicity and a method for preparing same.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 27, 2014
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Hanjoung CHO, Jae Young KO, Dae Hyung LEE, Cheol Min PARK, Sang Chul JI
  • Asphalt compositions modified by styrenic block copolymer and vegetable wax
    Patent number: 8679244
    Abstract: Disclosed is a modified asphalt composition including a styrenic block copolymer and a vegetable wax as modifier. With lower viscosity at high temperatures as compared to the asphalt composition modified only with the styrenic block copolymer, it can be manufactured and used at lower temperatures. Also, with higher ductility at low temperatures, it can minimize fatigue crack even in cold weathers.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 25, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jae Yun Kim, Min Sung Kwon, Eun Kyung No, Sun Woo Cheen
  • Catalyst composition for the synthesis of thin multi-walled carbon nanotube
    Patent number: 8673807
    Abstract: The present invention relates to a catalyst composition for the synthesis of thin multi-walled carbon nanotube(MWCNT). More particularly, this invention relates to a multi-component metal catalyst composition comprising i) main catalyst of Co and Al, ii) inactive support of Mg and iii) optional co-catalyst at least one selected from Ni, Cr, Mn, Mo, W, Pb, Ti, Sn, or Cu. Further, the present invention affords thin multi-walled carbon nanotube having 5˜20 nm of diameter and 100˜10,000 of aspect ratio in a high yield.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: March 18, 2014
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Sang-Hyo Ryu, Wan Sung Lee, Youngchan Jang
  • Photoacid generator, method for producing the same, and resist composition comprising the same
    Patent number: 8617789
    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), Y1, Y2, 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.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: December 31, 2013
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jung Hoon Oh, Jin Bong Shin, Tae Gon Kim, Dong Chul Seo
  • NOVEL HYDROPHILIC CHAIN TRANSFER AGENT AND END-MODIFIED STYRENE-BUTADIENE COPOLYMER USING THEM
    Publication number: 20130289200
    Abstract: Disclosed are a novel chain transfer agent having a trichloromethyl functional group bonded at an end thereof, an end-modified styrene-butadiene copolymer prepared by using the chain transfer agent, and an organic-inorganic composite obtained by mixing the end-modified styrene-butadiene copolymer with silica. The disclosed end-modified styrene-butadiene copolymer has a high affinity with silica because its end is modified with a hydrophilic chain transfer agent. Thus, the organic-inorganic composite including the mixture of the copolymer with silica is useful as a material for the manufacture of rubber products such as a tire, a sole, a rubber hose, or a rubber belt.
    Type: Application
    Filed: September 24, 2012
    Publication date: October 31, 2013
    Applicants: Institute for Research & Industry Cooperation, PNU, Korea Kumho Petrochemical Co., Ltd.
    Inventors: Gwang Hoon Kwag, Jong Yeop Lee, Dong Hyuk Na, Jun Keol Choi, Hyun Jong Paik, Bong Soo Kim, Hee Jeong Kim
  • INTERFACIAL POLYMER FOR RUBBER-SILICA NETWORK
    Publication number: 20130289209
    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: Application
    Filed: September 20, 2012
    Publication date: October 31, 2013
    Applicants: Institute for Research & Industry Cooperation, PNU, Korea Kumho Petrochemical Co., Ltd.
    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
  • Grafted and functionalized high 1,4-trans polybutadiene with aromatic organosulfur compound
    Patent number: 8552120
    Abstract: The present invention relates to a process of preparing 1,4-trans polybutadiene grafted with an aromatic organosulfur compound, the process comprising (a) preparing 1,4-trans polybutadiene by polymerizing 1,3-butadiene or butadiene derivatives in a nonpolar solvent in the presence of a particular catalyst, and (b) preparing the 1,4-trans polybutadiene grafted with an aromatic organosulfur compound by reacting the trans polybutadiene with an aromatic organosulfur compound. The organosulfur molecule in the molecular chain minimizes ultra high molecular weight fraction and narrows the molecular weight distribution, thereby enabling this polymer to show improved processability and tensile properties.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: October 8, 2013
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Gwang Hoon Kwag, Hoochae Kim, Seung Hwon Lee, Hwieon Park, Hyung Kyu Choi
  • Method for preparing styrene-butadiene copolymer using reactive emulsifier and styrene-butadiene copolymer prepared by the same
    Patent number: 8530017
    Abstract: Provided is a method for preparing a styrene-butadiene copolymer having improved silica affinity through introduction of a novel reactive emulsifier. The styrene-butadiene copolymer prepared according to the disclosed method has superior affinity for thereby and thus has superior processability and tensile properties and remarkably improved dynamic properties. Therefore, when the styrene-butadiene copolymer according to the present invention is used as a tire tread material, it can greatly improve its physical properties.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: September 10, 2013
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Gwanghoon Kwag, Dong Hyuk Na, Jun Keol Choi
  • Complex Oxide Catalyst of Bi/Mo/Fe for the Oxidative Dehydrogenation of 1-Butene to 1,3-Butadiene and Process Thereof
    Publication number: 20130209351
    Abstract: The present invention relates to a complex oxide catalyst of Bi/Mo/Fe and an oxidative dehydrogenation of 1-butene in the presence of a catalyst herein. A catalyst of the present invention is superior to the conventional Bi/Mo catalyst in thermal and mechanical stabilities, conversion and selectivity toward 1,3-butadiene, while showing a long-term catalytic activity.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 15, 2013
    Applicant: Korea Kumho Petrochemical Co., Ltd.
    Inventor: Korea Kumho Petrochemical Co., Ltd.
  • Highly Conductive Carbon Nanotube Having Bundle Moieties With Ultra-Low Bulk Density and Its Manufacturing Method
    Publication number: 20130207026
    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: Application
    Filed: February 12, 2013
    Publication date: August 15, 2013
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Dong Hwan KIM, Wan Sung Lee, Woo Ram JUNG, Youngchan JANG