Abstract: Provided are a novel organic semiconductor compound, a production method thereof, and an organic electronic device using the same, wherein the organic semiconductor compound includes a thiazolidine functional group introduced into a heteroaromatic ring to thereby remarkably improve photovoltaic characteristics of an organic electronic device including the same.
Type:
Grant
Filed:
April 27, 2018
Date of Patent:
July 9, 2019
Assignees:
Korea Research Institute of Chemical Technology, Kyonggi University Industry & Academia Cooperation Foundation
Inventors:
Jong Cheol Lee, Sang Kyu Lee, Won Suk Shin, ChangEun Song, Sang Jin Moon, Hang Ken Lee, Eunhee Lim
Abstract: A lung model device for inhalation toxicity testing is provided. The device has a plurality of mesh tissue panels having lung cells attached thereto arranged inside a case so as to have a similar structure to a human lung, and air and nanoparticles are supplied into the case through a separate respiratory operating unit, thereby enabling inhalation toxicity testing on nanoparticles to be simply and conveniently performed in an indirect way by determining changes in the state of the lung cells without using real laboratory animals. The mesh tissue panels having a smaller lattice spacing size are sequentially positioned according to the nanoparticle inflow direction, thereby providing a structure similar to the structure of a real lung.
Type:
Grant
Filed:
June 4, 2015
Date of Patent:
July 2, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Abstract: Disclosed is a spheroid forming culture container using a temperature-sensitive glycol chitosan derivative and a spheroid forming method using the same. In the disclosed spheroid forming culture container, a surface of a culturing space is coated with a glycol chitosan derivative having reversible sol-gel transition characteristic depending on temperature.
Type:
Grant
Filed:
July 30, 2015
Date of Patent:
June 25, 2019
Assignees:
THE INDUSTRY & ACADEMIC COOPERTAION IN CHUNGNAM NATIONAL UNIVERSITY (IAC), KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Kang Moo Huh, Sun Woong Kang, Han Chang Kang, Hye Eun Shim, Ik Sung Cho, Myeong Ok Cho
Abstract: Methods for the oligomerization of ethylene, and more specifically, methods for the preparation of mainly ethylene oligomers of C10 or higher are described. A method can include performing a first oligomerization of an ethylene gas using a Ni-containing mesoporous catalyst, followed by a second oligomerization using an ion exchange resin, etc. to produce ethylene oligomers of C10 or higher. The method for the preparation of ethylene oligomers can produce C8-16 ethylene oligomers in high yield without inducing deactivation of the catalyst, compared to the conventional technology of ethylene oligomerization by a one-step process.
Type:
Grant
Filed:
May 12, 2017
Date of Patent:
June 25, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Dong Won Hwang, Ho Jeong Chae, MaEum Lee, Ji Sun Yoon
Abstract: The present invention relates to a method for preparing bioethanol from lignocellulosic biomass. The method of the present invention is capable of: minimizing the impurity content of an enzymatic saccharification raw material, by extracting biomass using hot water, before pretreatment, and removing extractable substances such as inorganic salts; suppressing, to the greatest extent, the production of overdecomposition products of sugar, by pretreating the biomass, from which the hot water extractable substances have been removed, in a condition for maximizing xylan yield; preparing fermentable sugar at a low cost, without washing a pretreated solid obtained from subsequent solid-liquid separation, but by only concentrating a sugar solution obtained after enzymatic saccharification, using a separation film; and preparing bioethanol therefrom in high yield.
Type:
Grant
Filed:
June 9, 2014
Date of Patent:
June 25, 2019
Assignee:
Korea Research Institute of Chemical Technology
Inventors:
Ju Hyun Yu, Chan Duck Jung, In Yong Eom, Seung Hwan Lee, Kyung Sik Hong, In-Chul Kim, Jong Geon Jegal, Bong Keun Song
Abstract: The present invention relates to an anti-coking catalyst having a physical property of reducing coke formation, which comprises a solid acid catalyst containing gadolinium (Gd) on the surface, a preparation method thereof, and a use thereof. The preparation method includes a first step of determining the amount of gadolinium (Gd) or a Gd-providing precursor to be used relative to the total weight of the solid acid catalyst, which reducing the coking of a specific solid acid catalyst below a specific level under a specific reaction condition; and a second step of preparing a Gd-containing solid acid catalyst using the amount determined in the first step. The catalyst according to the present invention is a catalyst in which an appropriate weight ratio of gadolinium is supported on the surface of a pure solid acid substance or solid acid substance on which a specific metal is supported.
Type:
Grant
Filed:
July 13, 2017
Date of Patent:
June 4, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Sung Tak Kim, Geun Jae Kwak, Ki Won Jun, Ahron Hwang, Seok Chang Kang
Abstract: A beta zeolite catalyst for the preparation of a BTEX (benzene, toluene, ethylbenzene, xylene) mixture from polyaromatic hydrocarbons and a preparation method of the same are disclosed. The beta zeolite catalyst demonstrates high conversion of polyaromatic hydrocarbons and high BTEX production yield by containing optimum contents of the group VIB metals and cocatalysts, so that it can be effectively used as a beta zeolite catalyst for the production of BTEX.
Type:
Grant
Filed:
September 22, 2016
Date of Patent:
June 4, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Jeong-Rang Kim, Soon Yong Jeong, Chul Ung Kim, Tae Wan Kim, Youjin Lee, Eun Sang Kim, Joo Wan Kim
Abstract: This invention relates to a heterogeneous catalyst represented by Rh/C3N4 configured such that a complex of a rhodium compound and 3-benzoylpyridine is immobilized on a carbon nitride support.
Type:
Grant
Filed:
August 24, 2015
Date of Patent:
May 21, 2019
Assignees:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, RESEARCH BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Inventors:
Jae Hyun Park, Jong Wook Bae, Tae Sun Chang, Beom Sik Kim
Abstract: The present invention relates to a method and apparatus for preparation of lactide using a lactide purification process, comprising introducing an aqueous solution comprising lactic acid into a reactor filled with a catalyst and reacting the same to produce crude lactide vapor; and purifying the crude lactide vapor to produce lactide crystals, wherein a first purification comprises collecting and crystallizing the crude lactide vapor using a first solvent to produce lactide crystals, and separating the lactide crystal from a residue through filtration.
Type:
Grant
Filed:
October 11, 2016
Date of Patent:
April 9, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Dong Won Hwang, Jong San Chang, Young Kyu Hwang, U Hwang Lee, Do Young Hong, Su Kyung Lee, Kyung Ho Cho, Pravin Pandharinath Upare
Abstract: Provided is a precursor of an inorganic/organic hybrid perovskite compound, and the precursor of the precursor of the inorganic/organic hybrid perovskite compound according to an exemplary embodiment of the present invention includes an organic positive ion, a metal positive ion, a halogen negative ion, and a guest molecule (GM).
Type:
Grant
Filed:
December 23, 2014
Date of Patent:
March 26, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Sang Il Seok, Jun Hong Noh, Nam Joong Jeon
Abstract: Disclosed are novel compounds of specific chemical structures having inhibitory activity on c-Myc/Max/DNA complex formation or pharmaceutically acceptable salts thereof.
Type:
Grant
Filed:
March 1, 2018
Date of Patent:
March 12, 2019
Assignees:
NATIONAL CANCER CENTER, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Kyung Chae Jeong, Hwan Jung Lim, Seong Jun Park, Ho Kyung Seo, Kyung Ohk Ahn, Sang Jin Lee, Eun Sook Lee
Abstract: The present invention relates to a method for preparing fructose or xylulose from biomass comprising glucose or xylose, and a method for separating a mixture of glucose and fructose and a mixture of xylose and xylulose.
Type:
Grant
Filed:
June 27, 2017
Date of Patent:
March 12, 2019
Assignee:
Korea Research Institute of Chemical Technology
Inventors:
Dong Won Hwang, Pravin Pandharinath Upare, Young Kyu Hwang, In Taek Hwang, Jong San Chang, Do Young Hong, U Hwang Lee
Abstract: A method for preparing trichlorosilane according to an embodiment of the present invention comprises the steps of: supplying surface-modified metal silicide and metal grade silicon to a reaction unit; supplying silicon tetrachloride and hydrogen to the reaction unit; and supplying a product, which is generated by a reaction of metal grade silicon, silicon tetrachloride, and hydrogen in the presence of metal silicide in the reaction unit, to a separation unit, and separating a trichlorosilane component. In cases where a silicon tetrachloride hydrochlorination reaction is performed using the method for preparing trichlorosilane according to the embodiment of the present invention, the yield of trichlorosilane can be raised.
Type:
Grant
Filed:
January 19, 2015
Date of Patent:
March 12, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Won Choon Choi, Yong Ki Park, Woo Hyung Lee, Hwi Min Seo, Na Young Kang, Joo Hee Han, Dong Ho Lee, Gui Ryong Ahn, Gil Ho Kim
Abstract: A method for producing high-efficiency methanol capable of reducing emission of carbon dioxide. The method includes: a first step of preparing mixed gas by using steam and natural gas as raw materials and converting C2+ hydrocarbon contained in the natural gas into methane on a catalyst; a second step of preparing a synthesis gas including carbon monoxide, carbon dioxide, and hydrogen by reforming the mixed gas in a reformer filled with a reforming catalyst; and a third step of preparing methanol by using the synthesis gas as the raw material and reacting the synthesis gas.
Type:
Grant
Filed:
July 2, 2015
Date of Patent:
February 26, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Ki Won Jun, In Hyuck Choi, Chun Dong Zhang
Abstract: Disclosed is a method for directly synthesizing monocyclic aromatic compounds and long-chain olefin compounds from a carbon dioxide-rich synthetic gas and, specifically, a method for directly synthesizing monocyclic aromatic compounds and long-chain olefin compounds from a carbon dioxide-rich synthetic gas, the method comprising a step of preparing a C1-C15 short-chain hydrocarbon by Fischer-Tropsch (FT) synthesis and a step of preparing monocyclic aromatic compounds and long-chain olefin compounds by dehydrogenating the short-chain hydrocarbon products, and maximizing the yield of the short-chain hydrocarbon by using, as a synthetic gas to be used in FT synthesis, a carbon dioxide-rich synthetic gas in which the molar ratio of hydrogen, carbon monoxide and carbon dioxide is delimited to a specific range, and maximizing the yield of the monocyclic aromatic compounds or the long-chain olefin compounds by specifying the composition of a catalyst to be used in the dehydrogenation and the temperature and pressure
Type:
Grant
Filed:
November 27, 2015
Date of Patent:
February 19, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Ki Won Jun, Yun Jo Lee, Geun Jae Kwak, Hae Gu Park, Yong Tae Kim, Seok Chang Kang
Abstract: A reaction apparatus includes first and second reaction material accommodation parts, each of which accommodates a solid, gaseous, or liquid reaction material. A feed pump feeds the reaction material to one or each of the first and second accommodation parts. A reactor mixes the reaction material fed from the feed pump. The reactor is configured to have a cylinder that has a reaction chamber which accommodates the reaction material therein. The reactor has injection ports on which one side of each of the upper portion and lower portion thereof are connected to the first and second reaction material accommodation parts, respectively. A stirring shaft is disposed to be rotatable in the cylinder and stirs the reaction material supplied from the first and second reaction material accommodation parts. A stirring motor provides torque for the stirring shaft.
Type:
Grant
Filed:
November 21, 2013
Date of Patent:
February 12, 2019
Assignees:
LAMINAR CO., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Jong Pal Hong, Hee Wan Lee, Gyeong Rye Choi, Joong Won Lee, Ho Jeong Chae
Abstract: Provided are a novel organic semiconductor compound, a production method thereof, and an organic electronic device using the same, wherein the organic semiconductor compound includes a thiazolidine functional group introduced into a heteroaromatic ring to thereby remarkably improve photovoltaic characteristics of an organic electronic device including the same.
Type:
Application
Filed:
April 27, 2018
Publication date:
February 7, 2019
Applicants:
Korea Research Institute of Chemical Technology, Kyonggi University Industry & Academia Cooperation Foundation
Inventors:
Jong Cheol Lee, Sang Kyu Lee, Won Suk Shin, ChangEun Song, Sang Jin Moon, Hang Ken Lee, Eunhee Lim
Abstract: This invention relates to a catalyst used in a carbonylation of methanol using carbon monoxide to acetic acid, and more particularly to a heterogeneous catalyst represented by Rh/WxC (where x is an integer of 1 or 2) in which a complex of a rhodium compound and 3-benzoylpyridine is fixed on a support of tungsten carbide.
Type:
Grant
Filed:
August 24, 2015
Date of Patent:
February 5, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Jae Hyun Park, Jong Wook Bae, Tae Sun Chang, Beom Sik Kim
Abstract: The present invention relates to a catalyst for transfer hydrogenation, which is formed of a metal-organic framework having an MOF-808 based X-ray diffraction pattern. A high crystalline porous MOF-808 based metal-organic framework exhibits excellent performance in the transfer hydrogenation of ethyl levulinate (EL) at high and low temperature.
Type:
Grant
Filed:
May 2, 2017
Date of Patent:
February 5, 2019
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Young Kyu Hwang, Jong San Chang, Do Young Hong, Dong Won Hwang, U Hwang Lee, Kyung Ho Cho, Anil Haribhau Valekar, Su Kyung Lee
Abstract: The present disclosure relates to a particle including at least one atomic-scale channel formed on a surface of the particle or on a surface and inside of the particle; a catalyst including the particle, particularly a catalyst for efficient and selective electrochemical conversion of carbon dioxide into high value-added C2+ fuel; and a method of preparing the particle.
Type:
Application
Filed:
February 28, 2018
Publication date:
January 24, 2019
Applicants:
Korea Advanced Institute of Science and Technology, Korea Research Institute of Chemical Technology
Inventors:
Jeung Ku Kang, Hyung Mo Jeong, Youngkook Kwon, Beom-sik Kim