Abstract: The present invention relates to a recombinant microorganism for producing 1,3-propanediol, wherein a pathway converting pyruvate into 2,3-butanediol is inhibited in a microorganism having a pyruvate and acetyl CoA biosynthetic pathway. In addition, the present invention relates to a method for producing 1,3-propanediol by using the recombinant microorganism.
Abstract: A long carbon fiber reinforced thermoplastic resin composition for foam injection and a molded article manufactured using the same are provided. More particularly, the thermoplastic resin composition and the manufactured molded article may be capable of improving component assembly and stability by minimizing deformation after foam injection molding. Such composition and molded article can be utilized as a component for a vehicle structure such as a panoramic sunroof frame. Also provided herein is a low-density polyamide-6 polymer comprising a long carbon fiber reinforcing agent, a thermoplastic elastomer, a silane-based coupling agent and a sodium phosphate nucleating. The polymer is suitable for foam injection. The thermoplastic resin composition and molded article made of said composition are light weight and economic feasibility as well as having high stiffness, durability, dimensional stability, and a desirable injection appearance.
Type:
Grant
Filed:
December 6, 2016
Date of Patent:
January 23, 2018
Assignees:
HYUNDAI MOTOR COMPANY, GS CALTEX
Inventors:
Sang Sun Park, Ji Hyun Jung, Jong Tae Seo, Hyung Tak Lee, Woong Jae Boo
Abstract: Compositions of high-rigid polypropylene composite resin are provided herein. Such compositions having excellent tactile sensation and dimensional stability, and more particularly, the compositions of polypropylene composite resin having excellent tactile sensation such as thermoplastic rubber, excellent impact strength and rigidity, and low shrinkage anisotropy. The compositions of polypropylene composite resin provided herein also have excellent impact strength and rigidity as well as excellent tactile sensation such as a thermoplastic rubber and low shrinkage anisotropy. Thus, they exhibit excellent moldability and the compositions can be molded into a vehicle component. Furthermore, the compositions of polypropylene composite resin have excellent tactile sensation and can be used as a high-quality material that does not require separate painting and maintains excellent physical properties and dimensional stability as a vehicle component.
Type:
Application
Filed:
December 9, 2016
Publication date:
November 2, 2017
Applicants:
Hyundai Motor Company, Kia Motors Corporation, GS CALTEX, SEOYON E-HWA
Inventors:
Han Ki LEE, Jung Gyun NOH, Hak Soo KIM, Kyung Soon JANG, Yong Ho KIM, Dong Han KIM, Woong Jae BOO, Byung Wook KANG, Seung Joon LEE, Won Gil KIM
Abstract: Provided is a method for producing bioproducts, including the steps of: culturing a first microorganism to produce bioalcohol; hydrolyzing the first microorganism; separating the bioalcohol; obtaining wastes from the hydrolyzed bioalcohol fermentation; and inoculating a second microorganism into the wastes from the hydrolyzed bioalcohol fermentation.
Abstract: The present invention relates to a method for preparing a polyamide resin, comprising the steps of: (a) preparing a polyamide polymer by anionically polymerizing a monomer including 2-pyrrolidone; (b) refining an unreacted monomer and a catalyst in the polyamide polymer with water; (c) pH-controlling through an ion exchange of the refined water; and (d) recovering the unreacted monomer by concentrating the pH-controlled water.
Type:
Grant
Filed:
December 3, 2014
Date of Patent:
May 23, 2017
Assignee:
GS CALTEX CORPORATION
Inventors:
Su-Jeong Lee, Dong-Hun Hyun, Hee-Jong Lee
Abstract: 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.
Abstract: The present invention relates to a recombinant microorganism for producing 1,3-propanediol, wherein a pathway converting pyruvate into 2,3-butanediol is inhibited in a microorganism having a pyruvate and acetyl CoA biosynthetic pathway. In addition, the present invention relates to a method for producing 1,3-propanediol by using the recombinant microorganism.
Abstract: A method for preparing a pitch for carbon fibers and a pitch for carbon fibers prepared by the same are disclosed. The method includes introducing a peroxide compound and ozone into a petroleum-process residual oil, followed by heat treatment for reaction. By the method, the pitch for carbon fibers, which exhibits excellent oxidative stabilization and oxidative incompatibility while having a high softening point and high strength, can be obtained at high yield at a relatively low temperature.
Type:
Grant
Filed:
September 30, 2014
Date of Patent:
August 2, 2016
Assignee:
GS CALTEX CORPORATION
Inventors:
Sang-Wook Park, Young-Se Oh, Ji-Su Choi, Ki-Ung Kim, Sang-Hee Park
Abstract: A long fiber-reinforced thermoplastic resin composition having improved impact resistance, includes: (A) a long fiber reinforcement; (B) an ethylene-propylene copolymer; (C) a first thermoplastic elastomer; (D) a second thermoplastic elastomer; (E) a functional group-grafted modified polypropylene resin; and (F) an inorganic filler.
Abstract: The present invention provides a polypropylene resin composition in a mixture of a pellet (A) and a pellet (B), which is characterized by mixing them with various inorganic fillers and additives, wherein the pellet (A) comprises a long fiber-reinforced composite resin (a) obtained via a pultrusion impregnation process, and the pellet (B) comprises a composite resin (b) that includes polypropylene and thermoplastic elastomer. The polypropylene resin composition of the present invention can directly replace thermoplastic elastomer overmolding or painting in automotive parts to which such processes are routinely applied (e.g., interior components of the vehicle), which makes it possible to simplify and reduce the cost of the production process for such parts.
Type:
Grant
Filed:
December 20, 2013
Date of Patent:
November 3, 2015
Assignees:
Hyundai Motor Company, Kia Motors Corporation, GS CALTEX
Inventors:
Jung Gyun Noh, Jong Yoon Lee, Dae Sik Kim, Woong Jae Boo, Byung Wook Kang, Ha Kyu Seo
Abstract: 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.
Abstract: 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.
Type:
Grant
Filed:
June 21, 2011
Date of Patent:
September 8, 2015
Assignee:
GS CALTEX CORPORATION
Inventors:
Do Young Seung, Sang Ick Lee, Tae Hyun Jeon, Ki Joo Hong, Ung Ju Lee, Dong Shin Kim
Abstract: The present invention relates to a method for preparing a CIS- or CIGS-based light-absorbing layer which is included in a thin film solar cell. More particularly, the present invention relates to a method for preparing a CIS- or CIGS-based light-absorbing layer which ultimately improves the efficiency of a solar cell since the remaining carbon impurities in the formed light-absorbing layer are minimized and additional sulfurization treatment or selenium treatment is made optional, not requisite.
Type:
Grant
Filed:
October 8, 2014
Date of Patent:
August 25, 2015
Assignee:
GS CALTEX CORPORATION
Inventors:
Yeokwon Yoon, Tae-Seok Lee, Kyoung-Jun Lee, Jae-Hong Kim
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:
Grant
Filed:
September 21, 2010
Date of Patent:
August 4, 2015
Assignees:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, BIOFUELCHEM CO., GS CALTEX CORPORATION
Inventors:
Sang Yup Lee, Yu-Sin Jang, Jin Young Lee, Joung Min Lee, Jin Hwan Park
Abstract: 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.
Type:
Application
Filed:
May 24, 2013
Publication date:
November 27, 2014
Applicant:
GS CALTEX CORPORATION
Inventors:
Young Se OH, Sang Wook Park, Su Jeong Lee
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:
Grant
Filed:
September 21, 2010
Date of Patent:
July 1, 2014
Assignees:
Korea Advanced institute of Science and Technology, Biofuelchem Co., GS Caltex Corporation
Inventors:
Sang Yup Lee, Yu-Sin Jang, Joung Min Lee, Jung Ae Im, Hyohak Song
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.
Abstract: 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.
Type:
Application
Filed:
April 13, 2012
Publication date:
February 6, 2014
Applicant:
GS CALTEX CORPORATION
Inventors:
Sang-Hyun Lee, Moon-Ho Eom, Julia Lee, Sang-Jun Jeon, Jung-Hee Cho, Jin Dal Rae Choi
Abstract: 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.
Type:
Application
Filed:
April 13, 2012
Publication date:
January 30, 2014
Applicant:
GS CALTEX CORPORATION
Inventors:
Sang-Hyun Lee, Moon-Ho Eom, Julia Lee, Sang-Jun Jeon, Jung-Hee Cho, Jin Dal Rae Chol
Abstract: 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.
Type:
Application
Filed:
June 21, 2011
Publication date:
April 11, 2013
Applicant:
GS CALTEX CORPORATION
Inventors:
Do Young Seung, Sang Ick Lee, Tae Hyun Jeon, Ki Joo Hong, Ung Ju Lee, Dong Shin Kim