Abstract: Provided are a method for manufacturing a fiber-reinforced resin composite, a fiber-reinforced resin composite manufactured by the manufacturing method, and a molded product, the method comprising the steps of: spinning a fiber filament; coating a surface of the fiber filament by spraying an impregnation resin emulsion onto the spun fiber filament; and forming a fiber strand by bundling the surface-coated fiber filament.
Type:
Grant
Filed:
September 26, 2016
Date of Patent:
January 28, 2025
Assignee:
GS CALTEX CORPORATION
Inventors:
Joung-Tae Seo, Seung-Jae Lee, Woong-Jae Boo
Abstract: The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. The thermoplastic resin composition includes a first propylene-ethylene copolymer, a second propylene-ethylene copolymer, a thermoplastic elastomer, an inorganic filler, and a sodium-phosphate-based nucleating agent as appropriate, and thus a molded article produced therefrom can exhibit improved mechanical rigidity, impact resistance, and dimensional stability. Even when formed to a low thickness for weight reduction, the molded article can be imparted with excellent processability, high tensile strength, a high flexural modulus, and high impact strength.
Type:
Grant
Filed:
July 6, 2022
Date of Patent:
June 4, 2024
Assignees:
HYUNDAI MOTOR COMPANY, KIA CORPORATION, GS CALTEX CORPORATION
Inventors:
Jin Young Yoon, Hee Joon Lee, Dong Eun Cha, Sun Jun Kwon, Chun Ho Park, Seung Ryong Jeong, Seok Jin Yong, Hyung Tak Lee
Abstract: A polypropylene composite resin composition and a molded article made from same have improved impact resistance. The composition includes: a first propylene-ethylene block copolymer resin having a melt index of 20 to 40 g/10 min (230° C., 2.16 kg); a second propylene-ethylene block copolymer resin having a melt index of 5 to 15 g/10 min (230° C., 2.16 kg); a thermoplastic elastomer including at least one of a styrenic thermoplastic elastomer or an olefinic thermoplastic elastomer; an inorganic filler; and a nucleating agent in appropriate amounts.
Type:
Application
Filed:
August 8, 2023
Publication date:
May 30, 2024
Applicants:
HYUNDAI MOTOR COMPANY, KIA CORPORATION, GS CALTEX CORPORATION
Inventors:
Mun Gyu Bak, Ju Seong Park, Dae Sik Kim, Seok Jin Yong, Hyung Tak Lee, Ha Kyu Seo
Abstract: Provided is a polypropylene resin composition which imparts excellent impact resistance by comprising polypropylene resin, a thermoplastic elastomer, and a wool-like inorganic filler, and simultaneously imparts dimensional stability through control of low shrinkage and orientation, and also has very excellent scratch resistance.
Type:
Grant
Filed:
October 30, 2018
Date of Patent:
October 24, 2023
Assignee:
GS CALTEX CORPORATION
Inventors:
Cheol-Hee Park, Byung-Wook Kang, Won-Keon Seo
Abstract: In methods for preparing an alkyl carboxylic acid ester according to embodiments of the present invention, a first reaction product is produced by reaction of a carboxylic acid stream and a first alcohol stream in a preliminary reactor. A second reaction product is produced by at least partially removing alcohol and water from the first reaction product. The second reaction product is esterified by reaction with a second alcohol stream in a main reactor. An alkyl carboxylic acid ester is recovered from the main reactor.
Type:
Grant
Filed:
November 25, 2019
Date of Patent:
March 21, 2023
Assignee:
GS CALTEX CORPORATION
Inventors:
Kyoung Jun Lee, In Chang Choi, Woo Young Kim
Abstract: Disclosed is a polyolefin-based resin composition for a vehicle interior material including heat-treated waste coffee grounds. The resin composition includes a polyolefin-based resin, waste coffee grounds including a volatile matter (VM) in an amount less than about 20 wt % of the waste coffee grounds, a modified polypropylene, an inorganic filler, and a thermoplastic elastomer.
Type:
Grant
Filed:
September 22, 2021
Date of Patent:
February 14, 2023
Assignees:
Hyundai Motor Company, Kia Corporation, 4EN Incorporation, GS Caltex Corporation
Inventors:
Han Ki Lee, A Rom Oh, Woo Ram Kim, Yeon Kyu Lee, Jung Woo Roh
Abstract: The present invention relates to a recombinant microorganism which is capable of simultaneously fermenting at least two sugars in a lignocellulosic saccharified liquid, and also capable of generating diol.
Type:
Grant
Filed:
November 30, 2018
Date of Patent:
January 3, 2023
Assignee:
GS CALTEX CORPORATION
Inventors:
Jong-Myoung Park, Chelladurai Rathnasingh, Hyo-Hak Song
Abstract: Disclosed herein are a long glass fiber reinforced thermoplastic resin composition and a molded article including the same. Specifically, the thermoplastic resin composition may include 30% to 70% by weight of polyamide, 20% to 60% by weight of a reinforcing agent which contains a glass fiber and has a flat-plate shape, and 1% to 5% by weight of a silane-based coupling agent.
Type:
Application
Filed:
May 26, 2021
Publication date:
April 7, 2022
Applicants:
HYUNDAI MOTOR COMPANY, KIA CORPORATION, GS Caltex Corporation
Inventors:
Kyeong Bae Seo, Wan Ki Noh, In Seok Kang, Min Sik Seo, Han Sol Lee, Sang Sun Park, Jae han Park, Hyung Tak Lee, Seok Jin Yong
Abstract: In a method and a system for decolorizing and deodorizing a polyhydric alcohol according to embodiments of the present invention, a mixture liquid containing a first polyhydric alcohol obtained by a separation process is prepared. The mixture liquid is subjected to a distillation treatment to preliminarily remove substances with different colors and odors to generate a pre-treatment liquid. The pre-treatment liquid is subjected to an adsorption treatment. Through a combination of the distillation treatment and the adsorption treatment, the removing efficiency of the substances with different colors and odors can be increased.
Type:
Grant
Filed:
July 31, 2018
Date of Patent:
December 7, 2021
Assignee:
GS CALTEX CORPORATION
Inventors:
Jung Joon Lee, Sang Jun Jeon, Hee Geun Nam
Abstract: Disclosed herein is a recombinant microorganism having enhanced 2,3-butanediol producing ability, wherein a pathway for converting pyruvate to acetyl-CoA, a pathway for converting pyruvate to formic acid, or a pathway for converting pyruvate to lactate is inhibited in a microorganism having acetyl-CoA and lactate biosynthetic pathways.
Type:
Grant
Filed:
March 7, 2014
Date of Patent:
March 16, 2021
Assignee:
GS CALTEX CORPORATION
Inventors:
Jong-Myoung Park, Hyo-Hak Song, Taek-Ho Yang
Abstract: The present invention relates to a recombinant microorganism for producing D(?) 2,3-butanediol, wherein a gene encoding an enzyme for converting acetoin into D(?) 2,3-butanediol is introduced into a microorganism having a pathway for converting acetoin into 2,3-butanediol. In addition, the present invention relates to a method for producing D(?) 2,3-butanediol by using the recombinant microorganism.
Abstract: Embodiments of the invention provide a microorganism capable of simultaneous co-fermentation of two or more sugars in a lignocellulosic hydrolysate and having tolerance against microorganism growth inhibitory substances in the lignocellulosic hydrolysate and further having butanol productivity. In addition, embodiments of the invention provide a recombinant microorganism in which a pathway converting butyryl-CoA into butanol or a pathway converting butyrate into butyryl-CoA is promoted, and butanol productivity is increased. Further, a method for producing butanol using the microorganisms is provided.
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:
Grant
Filed:
April 13, 2012
Date of Patent:
December 11, 2018
Assignee:
GS CALTEX CORPORATION
Inventors:
Sang-Hyun Lee, Moon-Ho Eom, Julia Lee, Sang-Jun Jeon, Jung-Hee Cho, Jin Dal Rae Choi
Abstract: Provided are a method for manufacturing a fiber-reinforced resin composite, a fiber-reinforced resin composite manufactured by the manufacturing method, and a molded product, the method comprising the steps of: spinning a fiber filament; coating a surface of the fiber filament by spraying an impregnation resin emulsion onto the spun fiber filament; and forming a fiber strand by bundling the surface-coated fiber filament.
Type:
Application
Filed:
September 26, 2016
Publication date:
September 27, 2018
Applicant:
GS CALTEX CORPORATION
Inventors:
Joung-Tae SEO, Seung-Jae LEE, Woong-Jae BOO
Abstract: The present invention relates to a gene which codes an enzyme having conversion activity between acetoin and 2,3-butanediol and has a nucleotide sequence of SEQ ID NO: 12. Further, the present invention relates to a protein coded by the gene. Further, the present invention relates to a recombinant microorganism having suppressed activity of the protein.
Type:
Grant
Filed:
September 26, 2014
Date of Patent:
June 26, 2018
Assignee:
GS CALTEX CORPORATION
Inventors:
Taek-Ho Yang, Hyo-Hak Song, Jong-Myoung Park, Chelladural Rathnasi
Abstract: The present invention relates to a recombinant microorganism with improved butanol production ability which has an acetyl-CoA synthesis pathway and a butyryl-CoA synthesis pathway, wherein a pathway converting acetyl-CoA to acetate is inhibited and a pathway converting acetyl-CoA to butyryl-CoA is promoted. In addition, the present invention relates to a method for producing butanol 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: 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.