Patents Assigned to GS CALTEX
  • Publication number: 20130017588
    Abstract: 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.
    Type: Application
    Filed: September 21, 2010
    Publication date: January 17, 2013
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, GS CALTEX CORPORATION, BIOFUELCHEM CO.
    Inventors: Sang Yup Lee, Yu-Sin Jang, Jin Young Lee, Joung Min Lee, Jin Hwan Park
  • Publication number: 20120301936
    Abstract: 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.
    Type: Application
    Filed: September 21, 2010
    Publication date: November 29, 2012
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, GS CALTEX CORPORATION, BIOFUELCHEM CO.
    Inventors: Sang Yup Lee, Yu-Sin Jang, Joung Min Lee, Jung Ae Im, Hyohak Song
  • Patent number: 8314259
    Abstract: 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.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: November 20, 2012
    Assignee: GS Caltex Corporation
    Inventors: Kwang Seop Jung, Jae Hyun Kim, Jung Hee Cho, Duk Ki Kim
  • Publication number: 20120231511
    Abstract: 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.
    Type: Application
    Filed: September 13, 2010
    Publication date: September 13, 2012
    Applicants: CHANGHAE ETHANOL CO., LTD., GS CALTEX CORPORATION
    Inventors: Julia Lee, Hyo Hak Song, Moon Ho Ueom, Jung Hee Cho, Do Young Seung, Gi-Wook Choi, Se-Kwon Moon, Sung Hoon Park, Yule Kim, Min Hee Han
  • Publication number: 20120121988
    Abstract: 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/cm3 and an angle of repose of 15 to 55 degrees.
    Type: Application
    Filed: May 14, 2010
    Publication date: May 17, 2012
    Applicant: GS CALTEX CORPORATION
    Inventors: Sang Ick Lee, Taehyun Jeon, Ung Ju Lee, Do Young Seung
  • Publication number: 20110124789
    Abstract: 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.
    Type: Application
    Filed: August 28, 2008
    Publication date: May 26, 2011
    Applicant: GS CALTEX CORPORATION
    Inventors: Jae Rim Choi, Hyun Ho Cho, Jong-Min Chae, Joung Tae Seo
  • Publication number: 20110027845
    Abstract: 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.
    Type: Application
    Filed: December 22, 2008
    Publication date: February 3, 2011
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, BIOFUELCHEM CO., GS CALTEX CORPORATION
    Inventors: Sang Yup Lee, Yu-Sin Jang, Jin Young Lee, Kwang Seop Jung, Jae Hyun Kim
  • Publication number: 20100209979
    Abstract: 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.
    Type: Application
    Filed: September 11, 2008
    Publication date: August 19, 2010
    Applicant: GS CALTEX CORPORATION
    Inventors: Kwang Seop Jung, Jae Hyun Kim, Jung Hee Cho, Duk Ki Kim
  • Patent number: 7365143
    Abstract: Disclosed herein is a polypropylene composite composition. The polypropylene composite composition comprises 50 to 80% by weight of polypropylene, 6 to 30% by weight of talc, 10 to 30% by weight of a rubber, 3 to 15% by weight of glass bubbles, and 0.5 to 7% by weight of a coupling agent wherein the coupling agent is a compound represented by Formula 1 below: wherein n is an integer from 1 to 500. According to the composition, the compatibility between the glass bubbles and the polypropylene can be improved, thus enabling effective use of the glass bubbles. Therefore, when the composition is used to produce automotive components, such as automotive interior components, the fuel efficiency of automobiles can be improved due to weight reduction effects of polypropylene composites. In addition, since the composition uses colorless and odorless glass bubbles, it can remove an unpleasant smell generated from conventional interior components using talc and is thus environmentally friendly.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: April 29, 2008
    Assignees: Hyundai Mobis Co., Ltd., GS Caltex Corporation
    Inventors: Suk Sun Ka, Kwang Seob Shin, Han Seok Song
  • Patent number: 7365144
    Abstract: Disclosed herein is a polypropylene composite composition. The polypropylene composite composition comprises 50 to 80% by weight of polypropylene, 6 to 30% by weight of talc, 10 to 30% by weight of a rubber, 3 to 15% by weight of glass bubbles, and 0.5 to 7% by weight of maleic anhydride polypropylene (MAH-PP). According to the composition, the compatibility between the glass bubbles and the polypropylene can be improved, thus enabling effective use of the glass bubbles. Therefore, when the composition is used to produce automotive components, such as automotive interior components, the fuel efficiency of automobiles can be improved due to weight reduction effects of polypropylene composites. In addition, since the composition uses colorless and odorless glass bubbles, it can remove an unpleasant smell generated from conventional interior components using talc and is thus environmentally friendly.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: April 29, 2008
    Assignees: Hyundai Mobis Co., Ltd., GS Caltex Corporation
    Inventors: Suk Sun Ka, Myoung Seok Kim, Han Seok Song
  • Publication number: 20070191530
    Abstract: Disclosed herein is a polypropylene composite composition. The polypropylene composite composition comprises 50 to 80% by weight of polypropylene, 6 to 30% by weight of talc, 10 to 30% by weight of a rubber, 3 to 15% by weight of glass bubbles, and 0.5 to 7% by weight of maleic anhydride polypropylene (MAH-PP). According to the composition, the compatibility between the glass bubbles and the polypropylene can be improved, thus enabling effective use of the glass bubbles. Therefore, when the composition is used to produce automotive components, such as automotive interior components, the fuel efficiency of automobiles can be improved due to weight reduction effects of polypropylene composites. In addition, since the composition uses colorless and odorless glass bubbles, it can remove an unpleasant smell generated from conventional interior components using talc and is thus environmentally friendly.
    Type: Application
    Filed: September 15, 2006
    Publication date: August 16, 2007
    Applicants: HYUNDAI MOBIS CO., LTD.,, GS Caltex Corporation
    Inventors: Suk Sun Ka, Myoung Seok Kim, Han Seok Song
  • Publication number: 20070190198
    Abstract: Disclosed herein is an apparatus for processing a polypropylene compound containing glass bubbles. The processing apparatus includes an extruder receiving a screw therein, a first hopper mounted on an outer peripheral surface of the extruder at a position corresponding to a beginning portion of the screw and used to introduce the polypropylene compound, which is a main material, into the extruder, and a second hopper mounted on the outer peripheral surface of the extruder at a position spaced apart from the first hopper by a predetermined distance and used to introduce glass bubbles into the extruder, so as to allow the glass bubbles to be mixed with the polypropylene compound that is being transferred by the screw. The processing apparatus has the effect of preventing damage to glass bubbles by minimizing a passage distance of the glass bubble along the screw of the extruder, thereby achieving a reduced weight and improved physical properties of a molded article to be discharged from the extruder.
    Type: Application
    Filed: August 31, 2006
    Publication date: August 16, 2007
    Applicants: HYUNDAI MOBIS CO., LTD., GS Caltex Corporation
    Inventors: Suk Sun Ka, Duk Chul Jeon, Han Seok Song