GS CALTEX CORPORATION Patent applications |
Patent application number | Title | Published |
20150299740 | RECOMBINANT MICROORGANISM HAVING ENHANCED BUTANOL PRODUCING ABILITY AND METHOD FOR PRODUCING BUTANOL USING THE SAME - The present invention relates to a microorganism having an acetyl CoA biosynthesis pathway and a butyryl CoA biosynthesis pathway; the microorganism being a recombinant microorganism having an increased ability to produce butanol, wherein a pathway for converting acetyl CoA into acetate is suppressed, and a pathway for converting acetate into acetyl CoA and a pathway for converting butyryl CoA into butanol are promoted. Also, the present invention concerns a method for producing butanol by using the recombinant microorganism. | 10-22-2015 |
20140346085 | METHOD OF PREPARING PITCH FOR CARBON FIBER - Disclosed herein is a method of preparing an isotropic pitch for carbon fiber having a high softening point, and more particularly, a method of preparing an isotropic pitch for carbon fiber by mixing petroleum residues with C9 fraction to form a mixture and then heating the mixture to perform heat polymerization. With the method of preparing an isotropic pitch according to the present invention, a separate catalyst is not required, and the isotropic pitch for carbon fiber having a low softening point may be prepared with a high yield even at a relatively low temperature. | 11-27-2014 |
20140038250 | APPARATUS AND METHOD FOR SEPARATING AND REFINING PRODUCT MANUFACTURED BY MICROBIAL FERMENTATION BY USING ADSORBENT - The present invention relates to an apparatus and a method for fermenting, separating, and refining a product, which is produced by cultivating a microorganism. The apparatus and the method for fermenting, separating, and refining, of the present invention, can separate and refine the product that is produced by microbial fermentation in a simple, continuous manner and with high efficiency. | 02-06-2014 |
20140030777 | APPARATUS AND METHOD FOR SEPARATING AND REFINING PRODUCT MANUFACTURED BY MICROBIAL FERMENTATION BY USING ADSORBENT - The present invention relates to an apparatus and a method for fermenting, separating, and refining a product, which is produced by cultivating a microorganism. The apparatus and the method for fermenting, separating, and refining, of the present invention, can separate and refine the product that is produced by microbial fermentation in a simple, continuous manner and with high efficiency. | 01-30-2014 |
20130089782 | NEGATIVE ELECTRODE ACTIVE MATERIAL WITH IMPROVED SAFETY, AND SECONDARY BATTERY COMPRISING SAME - The present invention relates to a negative electrode active material for an electrode mixture, and to an electrochemical cell comprising the negative electrode active material, wherein the negative electrode active material comprises an amorphous carbonaceous material and a doping element, and exhibits, in the temperature range of 450° C. to 950° C., at least two peaks of derivative weight change calculated by thermogravimetric analysis, and exhibits a maximum heat peak output of 20 mW to 60 mW as measured by differential scanning calorimetry. | 04-11-2013 |
20130017588 | RECOMBINANT MICROORGANISMS HAVING INCREASED ABILITY TO PRODUCE BUTANOL AND METHOD OF PRODUCING BUTANOL USING THE SAMEAANM Lee; Sang YupAACI DaejeonAACO KRAAGP Lee; Sang Yup Daejeon KRAANM Jang; Yu-SinAACI DaejeonAACO KRAAGP Jang; Yu-Sin Daejeon KRAANM Lee; Jin YoungAACI IncheonAACO KRAAGP Lee; Jin Young Incheon KRAANM Lee; Joung MinAACI Gangwon-doAACO KRAAGP Lee; Joung Min Gangwon-do KRAANM Park; Jin HwanAACI DaejeonAACO KRAAGP Park; Jin Hwan Daejeon KR - The present invention relates to recombinant microorganisms having an increased ability to produce butanol, and a method of producing butanol using the same. More specifically, the invention relates to recombinant microorganisms whose ability to produce butanol was increased by manipulation of their metabolic networks, and a method of producing butanol using the same. The recombinant microorganisms having an increased ability to produce butanol comprise a deletion of a gene, which encodes an enzyme that converts acetyl CoA to acetate, in host microorganisms having genes that encode enzymes involved in acetyl CoA and butyryl CoA biosynthetic pathway. The recombinant microorganisms obtained by manipulating the metabolic flux of microorganisms are able to selectively produce butanol with high efficiency, and thus are useful as microorganisms for producing industrial solvents and transportation fuels. | 01-17-2013 |
20120301936 | RECOMBINANT MUTANT MICROORGANISMS HAVING INCREASED ABILITY TO PRODUCE ALCOHOLS AND METHOD OF PRODUCING ALCOHOLS USING THE SAME - The present invention relates to recombinant mutant microorganisms having an increased ability to produce alcohol and a method of producing alcohol using the same, and more particularly to recombinant mutant microorganisms which have an increased ability to produce butanol, ethanol, isopropanol or mixed alcohols, which can be used as fuel, while producing little or no producing acetone as a byproduct, and to a method of producing butanol, ethanol, isopropanol or mixed alcohols using the same. The inventive recombinant mutant microorganisms having an increased ability to produce butanol or mixed alcohols and to remove acetone are those in which genes that encode enzymes involved in producing butanol from butyryl-CoA or butylaldehyde and in producing isopropanol from acetone were amplified or introduced in host microorganisms. The recombinant mutant microorganisms produce little or no byproducts such as acetone and can have an increased ability to produce alcohols, as a result of manipulating metabolic pathways. Thus, the recombinant mutant microorganisms are useful for industrial production of butanol or mixed alcohols comprising butanol and isopropanol. | 11-29-2012 |
20120231511 | PREPARATION METHOD FOR BIO-FUEL MATERIALS AND BIO-CHEMICALS - Disclosed is a preparation method for bio-fuel materials and bio-chemicals comprising the following steps: preparing a medium comprising fermentation waste generated in an alcohol production process; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated. More specifically, the preparation method for bio-fuel materials and bio-chemicals comprises the following steps: fermenting hexoses from a mixture of pentoses and hexoses to produce an ethanol fermentation broth; separating and purifying the ethanol fermentation broth; preparing a medium comprising the fermentation waste produced in the separation and purification step; inoculating a first microorganism into the medium; and culturing the medium wherein the first microorganism was inoculated. | 09-13-2012 |
20120121988 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF MANUFACTURING THE SAME AND RECHARGEABLE LITHIUM BATTERY HAVING THE SAME - Disclosed are a negative active material for a lithium secondary battery and a lithium secondary battery including same. The negative active material for a lithium secondary battery includes an amorphous carbon material, with a tap density of 0.7 to 1.5 g/cm | 05-17-2012 |
20110124789 | COLORED LONG FIBER REINFORCED PELLET AND COLORED RESIN ARTICLE MANUFACTURED BY USING THE SAME - Disclosed is a long fiber-reinforced colored pellet. The long fiber-reinforced colored pellet may include a thermoplastic polymer resin, a fiber reinforced material having a length of about 5 to 50 mm, and a pigment. In this instance, the thermoplastic polymer resin has a melt index (MI) of about 0.1 to 80 g/10 min at about 230° C. and under about 2.16 kg load, and a surface hardness of the pigment is about 5 or less. | 05-26-2011 |
20110027845 | ENHANCED ETHANOL AND BUTANOL PRODUCING MICROORGANISMS AND METHOD FOR PREPARING ETHANOL AND BUTANOL USING THE SAME - The present invention relates to a recombinant microorganism having an enhanced ability to produce ethanol and butanol and a method for preparing ethanol and butanol using the same, and more particularly to a recombinant microorganism having an enhanced ability to produce ethanol and butanol, into which a gene encoding CoA transferase and a gene encoding alcohol/aldehyde dehydrogenase are introduced, and to a method for preparing ethanol and butanol using the same. The recombinant microorganism according to the present invention, obtained by manipulating metabolic pathways of microorganisms, is capable of producing butanol and ethanol exclusively without producing any byproduct, and thus is useful as a microorganism producing industrial solvents and transportation fuel. | 02-03-2011 |
20100209979 | Method of Manufacturing Glycerol Carbonate - Disclosed is a method of manufacturing a glycerol carbonate (GC). The method includes a bio-catalyst reaction for generating the GC and byproducts generated by reacting a reactant solution using a lipase of a bio-catalyst. In this instance, the reactant solution is prepared by adding glycerol, a glycerol-containing composition, or a dimethyl carbonate (DMC) in a reaction solvent. | 08-19-2010 |