| KOREA KUMHO PETROCHEMICAL CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120077031 | CATALYST COMPOSITION FOR THE SYNTHESIS OF THIN MULTI-WALLED CARBON NANOTUBE - 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. | 03-29-2012 |
| 20120040186 | Process For Preparing Catalyst Composition For The Synthesis Of Carbon Nanotube With High Yields Using The Spray Pyrolysis Method - 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˜0.50 g/ml as well as the catalyst composition affords high production yield (1,000˜1,800%) of carbon nanotube. | 02-16-2012 |
| 20110272643 | ORGANIC ANTI-REFLECTIVE LAYER COMPOSITION CONTAINING RING-OPENED PHTHALIC ANHYDRIDE AND METHOD FOR PREPARATION THEREOF - A light absorbent for forming an organic anti-reflective layer, represented by the following formula 1 or formula 2, is provided: | 11-10-2011 |
| 20110183115 | POSITIVE TYPED PHOTOSENSITIVE COMPOSITION - Disclosed is a photosensitive resin composition, comprising 0.1 to 20 parts by weight of a polygonal oligomeric silsesquioxane derivative, and 5 to 30 parts by weight of a compound generating acid by light, based on 100 parts by weight of a polyamide derivative. | 07-28-2011 |
| 20110136956 | 1,4-CIS-POLYBUTADIENE FUNCTIONALIZED WITH ORGANOSULFUR COMPOUND FOR PREPARATION OF GOLF BALL CORE - Disclosed are 1,4-polybutadiene functionalized with an aromatic organosulfur compound, providing improved processability due to decreased Mooney viscosity and providing improved feel on hitting and flying performance due to decreased compression and increased restitution when used to prepare a golf ball core, and a composition for the preparation of a golf ball core including the same. | 06-09-2011 |
| 20110124882 | Method for Preparing N-Substituted Maleimides - The present invention relates to a method of preparing N-substituted maleimide in high purity and high yield, wherein, unlike a conventional method of preparing N-substituted maleimide after preparing N-substituted maleamic acid, an organic solvent, an acid catalyst, a dehydration co-catalyst and a stabilizer are added into a reactor without separately preparing N-substituted maleamic acid, and then a primary amine is added into the reactor to form an amine salt, maleic anhydride is added into the reactor, and the resulting mixture is subjected to a dehydration-cyclization reaction, wherein water produced during the reaction is azeotropically distilled with the organic solvent so as to effectively suppress formation of a maleimide polymer. Particularly, the invention simplifies the process, has high yield, minimizes side reactions, eliminates the introduction of expensive raw materials and the complicated treatment of the reaction solution and significantly shortens the time over which the raw materials and maleic anhydride are added. | 05-26-2011 |
| 20110105672 | ADHESIVES COMPOSITION COMPRISING MIXTURES OF MULTI-BLOCK COPOLYMERS - The present invention relates to an adhesive composition comprising a mixture of multi-block copolymers, in particular, an adhesive composition comprising a block copolymer represented by Formula 1, a hydrocarbon adhesive resin and a plasticizer. The adhesive composition according to the present invention can be easily processed due to its low melting point and shows improved adhesive properties such as loop tack, 180° peel strength and holding power. | 05-05-2011 |
| 20110098404 | FUNCTIONAL STYRENE-BUTADIENE COPOLYMER - A functional styrene-butadiene copolymer is disclosed. More specifically, the copolymer is prepared by radical polymerization of a styrene monomer, a butadiene monomer and an epoxy acrylate monomer in an emulsion state and ring-opening of the resultant styrene-butadiene-epoxy acrylate copolymer. When blended with silica, the disclosed copolymer provides excellent wet stopping performance and superior wear resistance. Therefore, it can be usefully applied for industrial materials including fuel-efficient tires, snow tires, belts, hoses, etc. | 04-28-2011 |
| 20110053084 | Photosensitive Compound and Photosensitive Composition Including the Same - Disclosed are a photosensitive compound and a method of manufacturing the same. The photosensitive is composed of a naphthoquinonediazide sulfonic ester compound having at least one naphthoquinonediazide sulfoxy group, and having either at least one carboxy group with 1 to 8 carbon atoms or at least one alkoxy group with 1 to 8 carbon atoms, in one molecule. | 03-03-2011 |
| 20110053081 | Positive Type Photosensitive Composition - Disclosed is a positive typed photosensitive composition including a polyamide derivative being represented by | 03-03-2011 |
| 20110053080 | Positive Typed Photosensitive Composition - Disclosed is a positive typed photosensitive composition including a polyamide derivative represented by the following Chemical Formula, and a heat-acid generator. | 03-03-2011 |
| 20110028652 | Synthetic styrene resin composition for environment-friendly window frame - Disclosed are a synthetic resin composition for use as building materials such as window frames, as well as a product manufactured using the same. More particularly, the synthetic resin composition comprises a tetrapolymer of acrylic rubber-styrene monomer-butadiene rubber-vinyl cyanide monomer and a styrene-vinyl cyanide copolymer having a high molecular weight and a high degree of dispersion. Unlike products manufactured using prior polyvinyl chloride (PVC), building material such as window frames manufactured using the synthetic resin composition are recyclable, and thus can contribute to a reduction in the generation of hormone-disrupting chemical dioxin, which is released in the burning thereof. Also, the resin composition can be manufactured into products having excellent properties of weather resistance and colorability without using environmental pollutants such as cadmium stearate or lead stearate, which are used as thermal stabilizers. | 02-03-2011 |
| 20110006266 | CATALYST FOR PREPARING CARBON NANOTUBES BY CONTROLLING ITS APPARENT DENSITY - The present invention relates to a catalyst for preparing a carbon nanotube having desired apparent density by controlling the adding amount of co-precipitating agent in the process of preparing a catalyst in order to obtain a catalyst having a minimized particle size. More specifically, this invention relates to a catalyst for preparing carbon nanotube having desired apparent density based upon the reverse-correlation between the amount of co-precipitating agent added in the process of preparing catalyst and the apparent density of catalyst. The carbon nanotube prepared by the catalyst having low apparent density shows excellent electrical conductivity and highly uniformed dispersion in the polymer/carbon nanotube composite. | 01-13-2011 |
| 20100240851 | MALEIMIDE-ALPHA-ALKYLSTYRENE-BASED TERPOLYMER WITH LOW MOLTEN VISCOSITY AND CONTINUOUS BULK PROCESS FOR PRODUCING IT - Disclosed are a maleimide-α-alkylstyrene-based, heat-resistant bulk terpolymer and a preparation process thereof. More specifically, disclosed are a bulk terpolymer, comprising 5-60 wt % of an N-substituted maleimide monomer, 10-70 wt % of an α-alkylstyrene monomer and 5-50 wt % of an unsaturated nitrile monomer, as well as a continuous bulk polymerization process for preparing the same. The disclosed bulk terpolymer has a weight-average molecular weight (Mw) of 70,000-300,000 and a glass transition temperature of 140-200° C., shows excellent high-temperature thermal stability and heat resistance and a remarkably low melt viscosity, and thus is excellent not only in processability, but also in productivity, processability, moldability and blendability, when it is blended with other resins. Also, the continuous bulk polymerization process is equipped with a devolatilizer and enables the bulk terpolymer to be produced at low cost and high efficiency. | 09-23-2010 |
| 20100113818 | Photoacid generator containing aromatic ring - An acid generator represented by the following formula (1) is provided: | 05-06-2010 |
| 20100075256 | Onium salt compound, polymer compound comprising the salt compound, chemically amplified resist composition comprising the polymer compound, and method for patterning using the composition - A compound represented by the following formula (1) is provided: | 03-25-2010 |
| 20100055408 | Organic anti-reflective layer composition containing ring-opened phthalic anhydride and method for preparation thereof - A light absorbent for forming an organic anti-reflective layer, represented by the following formula 1 or formula 2, is provided: | 03-04-2010 |
| 20090291390 | Acid generating agent for chemically amplified resist compositions - An acid generating agent represented by the following formula (1) or (2) is provided, which is included in chemically amplified resist compositions: | 11-26-2009 |
| 20090258321 | Light absorbent and organic antireflection coating composition containing the same - The present invention relates to a light absorbent for organic anti-reflection coating formation, and an organic anti-reflection film composition containing the same. The light absorbent for organic anti-reflection film formation according to the present invention is a compound of the following formula (1a), a compound of the following formula (1b), a mixture of compounds of the formulas (1a) and (1b), or a compound of formula (2): | 10-15-2009 |
| 20090030096 | METHOD OF PRODUCING EXPANDABLE POLYSTYRENE BEADS WHICH HAVE EXCELLENT HEAT INSULATION PROPERTIES - An expandable polystyrene bead production method, which is a two-step process, is disclosed. The method includes obtaining suspendable, homogenous micropellets from a mixed composition prepared by mixing graphite particles with a styrene-based resin and extruding the composition, and carrying out seed polymerization by suspending graphite-containing micropellets in water and adding a styrene-based monomer and an aromatic hydrocarbon having 6 to 10 carbon atoms, and impregnation by adding a blowing agent. The produced expandable polystyrene beads, which contain graphite particles, are considerably low in thermal conductivity. In addition, the expandable polystyrene beads exhibit a little change in the thermal conductivity over time due to the use of the graphite particles, so that the heat insulation property can be sustained for an extended period of time. | 01-29-2009 |
| 20080318167 | Copolymer and composition for organic and antireflective layer - The present invention provides an organic anti-reflection coating composition comprising a copolymer represented by the following Formula 1, a light absorbent, a thermal acid generating agent, and a curing agent: | 12-25-2008 |
