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公开(公告)号：US20230137881A1
公开(公告)日：2023-05-04
申请号：US17696877
申请日：2022-03-17
发明人： Chong Min KOO , Tae Yun KO , Jae Eun YOON , Soon Man HONG , Seon Joon KIM , Seung Sang HWANG , Albert Lee , Myung Ki KIM , Chang Hoon PARK , Ji Sung KWON
摘要： The present disclosure relates to a visible and infrared stealth element. The element of the present disclosure may selectively control thermal radiation energy according to a wavelength, and may also control a surface color and reflectance of near-infrared light and short-wavelength infrared light.
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公开(公告)号：US20220339820A1
公开(公告)日：2022-10-27
申请号：US17501806
申请日：2021-10-14
发明人： Soon Man HONG , Hang Kyu CHO , Seung Sang HWANG , Chong Min KOO , Seon Joon KIM , Albert LEE , Hwan Gyu LEE , Junpyo HONG
摘要： Disclosed is a recycling apparatus for a cross-linked polyethylene resin using a twin screw extruder. The recycling apparatus for a cross-linked polyethylene resin using a twin screw extruder according to an embodiment of the present disclosure includes: a raw material supply unit configured to supply a raw material that is a cross-linked polyethylene resin; and a twin screw extruder configured to receive the raw material from the raw material supply unit, the twin screw extruder including a cylinder and a twin screw installed inside the cylinder to rotate in the same direction, the twin screw extruder being configured to de-crosslink and recycle the raw material under a de-crosslinking reaction temperature and reaction pressure atmosphere while continuously transporting the raw material along the twin screw by the rotation of the twin screw.
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公开(公告)号：US20210262121A1
公开(公告)日：2021-08-26
申请号：US17172736
申请日：2021-02-10
发明人： SangOuk KIM , Taeyeong YUN , Jin Gu KIM , Gang San LEE , Chong Min KOO , Hye Rim KIM , Seon Joon KIM , Soon Man HONG , Seung Sang HWANG , Kyung Youl BAEK , Sangho CHO
摘要： Provided are a method of manufacturing MXene fibers and MXene fibers manufactured therefrom, wherein the method includes a) preparing a dispersion including MXenes; and b) spinning the dispersion in a coagulation solution to obtain MXene fibers.
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公开(公告)号：US20240204208A1
公开(公告)日：2024-06-20
申请号：US18503585
申请日：2023-11-07
发明人： Albert LEE , Seung Sang HWANG , Seon Joon KIM , Taegon OH , Ji Yoon JUNG , Young Sang PARK , Dong Jun HWANG , Gwan Hyun CHOI
IPC分类号： H01M4/86 , H01M4/90 , H01M4/92 , H01M8/1004
CPC分类号： H01M4/8657 , H01M4/9008 , H01M4/928 , H01M8/1004 , H01M2004/8689
摘要： The present specification discloses an electrochemical catalyst of core-shell structure and manufacturing method thereof. The electrochemical catalyst according to one embodiment of the disclosure provides an effect of being stable in an alkaline environment that is not lost in an aqueous solution while having a high ion exchange capacity and a method for preparing the same.
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5.发明申请公开(公告)号：US20210362142A1
公开(公告)日：2021-11-25
申请号：US17162639
申请日：2021-01-29
发明人： Kyung Youl BAEK , Soon Man HONG , Seung Sang HWANG , Chong Min KOO , Seon Joon KIM , Albert LEE , Jin Young SEO , Min Hyuk CHOI , Yu Ri LEE , Sejin KIM , DO XUAN HUY , Que Thi Nguyen , Sangho CHO
摘要： Provided are a catalyst composition with improved processability and chemical warfare agent degradation ability, a film composite manufactured by casting the same, and a preparation method thereof. Specifically, provided are a catalyst composition including a copolymer of a first polymer and a second polymer; and a metal-organic framework (MOF), and a film composite including the same, wherein processability and catalytic activity are improved.
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6.发明公开公开(公告)号：US20240124679A1
公开(公告)日：2024-04-18
申请号：US18450940
申请日：2023-08-16
发明人： Hyejeong SEONG , Seon Joon KIM , Nakwon CHOI , Mina KIM , Eun Yeong YANG
CPC分类号： C08K3/14 , C08K3/08 , C08L33/08 , H01G11/36 , C08K2201/001 , C08K2201/011 , C08L2203/20
摘要： The disclosure relates to a MXene-polymer composite comprising MXene and a UV curable polymer, and a sensor comprising the same. Particularly, the MXene-polymer composite according to the disclosure polymerizes the MXene with the UV-curable polymer to stably disperse the MXene in a porous hydrogel matrix, thereby exhibiting a larger surface area and enabling local patterning, and when the MXene-polymer composite is applied as a sensor, excellent electrochemical sensitivity and gas reactivity can be obtained.
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7.发明申请公开(公告)号：US20230136591A1
公开(公告)日：2023-05-04
申请号：US17570386
申请日：2022-01-07
发明人： Chong Min KOO , Tae Gon OH , Seung Jun LEE , Seon Joon KIM , Soon Man HONG , Seung Sang HWANG , Albert Lee
IPC分类号： C09K13/06
摘要： The present invention relates to an etching composition and a method of producing a MXene. The etching composition of the present invention can stably and quickly produce a MXene at high temperature. The etching composition of the present invention can produce a MXene in high yield. The etching composition of the present invention can easily produce various types of MXenes. A method using the etching composition of the present invention can produce a MXene having excellent electrochemical and mechanical properties.
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公开(公告)号：US20210269664A1
公开(公告)日：2021-09-02
申请号：US17173268
申请日：2021-02-11
发明人： Chong Min KOO , In Sik IN , Tae Yun KO , Daesin KIM , Se Hyun DOO , Seon Joon KIM , Soon Man HONG , Seung Sang HWANG , Kyung Youl BAEK , Albert LEE , Sangho CHO
IPC分类号： C09D11/52 , C09D11/037 , C09D11/033 , C07F7/28 , C07F11/00 , C07F9/00 , H01B1/20
摘要： The present disclosure relates to 2-dimensional MXenes surface-modified with catechol derivatives, a method for preparing the same, MXene organic ink including the same, and use thereof (e.g. flexible electrodes, conducive cohesive/adhesive materials, electromagnetic wave-shielding materials, flexible heaters, sensors, energy storage devices). Particularly, the simple, fast, and scalable surface-functionalization process of MXenes using catechol derivatives (e.g. ADOPA) organic ligands significantly improves the dispersion stability in various organic solvents (including ethanol, isopropyl alcohol, acetone and acetonitrile) and produces highly concentrated organic liquid crystals of various MXenes (including Ti2CTx, Nb2CTx, V2CTx, Mo2CTx, Ti3C2Tx, Ti3CNTx, Mo2TiC2Tx, and Mo2Ti2C3Tx). Such products offer excellent electrical conductivity, improved oxidation stability, excellent coating and adhesion abilities to various hydrophobic substrates, and composite processability with hydrophobic polymers. This finding will lead to further studies on the structures, properties, and physics of the organic MXene liquid crystals and their practical applications.
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公开(公告)号：US20210261415A1
公开(公告)日：2021-08-26
申请号：US17179332
申请日：2021-02-18
发明人： Yury GOGOTSI , Kanit HANTANASIRISAKUL , Chong Min KOO , Aamir IQBAL , Soon Man HONG , Seon Joon KIM , Seung Sang HWANG , Kyung Youl BAEK , Albert LEE , Sangho CHO
IPC分类号： C01B21/082 , H05K9/00
摘要： In an aspect, the present disclosure provides a heat-treated transition metal carbonitride MXene film annealed at high temperatures and a polymer composite comprising the same. In another aspect, the present disclosure provides a method for producing a heat-treated transition metal carbonitride MXene film comprising: obtaining a MXene aqueous solution containing dispersed 2-dimensional (2D) MXenes through an acid etching process; filtering the obtained MXene aqueous solution through a vacuum filtration process to produce a free-standing film; and annealing the produced free-standing film at high temperatures to obtain a heat-treated transition metal carbonitride MXene film. In still another aspect, the present disclosure provides an electromagnetic interference (EMI) shielding method comprising: superposing a coating comprising a heat-treated transition metal carbonitride MXene film on at least one surface of an object in a contact or non-contact manner.
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