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1.发明公开公开(公告)号：US20230278944A1
公开(公告)日：2023-09-07
申请号：US18018395
申请日：2021-07-26
Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY , KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE
Inventor： Sang Goo LEE , In Joon PARK , Won Wook SO , Shin Hong YOOK , Hong Suk KANG , Eun Ho SOHN , Ki Dong SONG , Yeon Ho OH , Hyun Jae JANG
IPC: C07C43/12
CPC classification number: C07C43/12
Abstract: The present invention relates to a method for preparing a perfluorodialkyl ether, comprising the steps of: (A) preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; and (B) isolating the perfluorodialkyl ether, and to an apparatus for preparing perfluorodialkyl ether, comprising: a reactor for preparing a perfluorodialkyl ether from a compound represented by Formula 1 in the presence of a metal fluoride; a reactant supplier for introducing the compound represented by Formula 1 into the reactor; and a discharge unit for discharging the perfluorodialkyl ether from the upper portion of the reactor.
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2.发明公开公开(公告)号：US20240318025A1
公开(公告)日：2024-09-26
申请号：US18259508
申请日：2021-12-28
Inventor： Eun-Ho SOHN , Hyeon Jun HEO , Won Wook SO , In Joon PARK , Bong Jun CHANG , Sang Goo LEE , Myoung Sook LEE , Shin Hong YOOK , Ju Hyeon KIM , Ji Hoon BAIK , Myung Seok OH , Jong Min KIM
IPC: C09D127/16 , C08J5/18 , C09D7/63
CPC classification number: C09D127/16 , C08J5/18 , C09D7/63 , C08J2327/16
Abstract: The present invention relates to a fluorine-based polymer coating film, an optical substrate comprising same, and a method for manufacturing the optical substrate, and provides a fluorine-based polymer coating film which is formed from fluorine-based polymer nanoparticles coming in contact and being bound to each other, and which is coated on a substrate to improve infrared transmittance. The fluorine-based polymer coating film according to the present invention has improved infrared transmittance, and since the size of the fluorine-based polymer nanoparticles is controlled to control the ultraviolet-infrared transmittance, transmission wavelength selectivity can be improved.
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Patent Agency Ranking
3.发明公开公开(公告)号：US20240199780A1
公开(公告)日：2024-06-20
申请号：US18286104
申请日：2022-02-07
Inventor： Eun-Ho SOHN , Won Wook SO , In Joon PARK , Bong Jun CHANG , Ju Hyeon KIM , Ji Hoon BAIK , Myung Seok OH , Jong Min KIM , Sang Goo LEE , Myoung Sook LEE , Hyeon Jun HEO , Shin Hong YOOK
IPC: C08F220/22 , C08F220/06 , C08F220/18 , C08F220/20 , C08K5/29 , C09D5/16 , C09D133/16
CPC classification number: C08F220/22 , C08F220/06 , C08F220/1818 , C08F220/20 , C08K5/29 , C09D5/1668 , C09D133/16
Abstract: The objective of the present invention is to provide a fluorine-based polymer having a low surface energy, a fluorine-based polymer composition comprising same, a fluorine-based polymer membrane comprising same, and a method for manufacturing same. The present invention provides an acrylate-based copolymer, and in particular, the present invention is characterized in that the number of fluorocarbons in the repeating unit is limited to 3 to 5, such that the surface energy of the polymer and the polymer membrane produced therefrom is significantly lowered. In addition, when the polymer of the present invention is coated on glass, etc., the polymer has the effect of remarkably improving light transmittance, and has excellent mechanical strength.
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公开(公告)号：US20240101810A1
公开(公告)日：2024-03-28
申请号：US17768986
申请日：2020-09-04
Inventor： Eun Ho SOHN , Shin Hong YOOK , Hong Suk KANG , In Joon PARK , Sang Goo LEE , Soo Bok LEE , Won Wook SO , Hyeon Jun HEO , Dong Je HAN , Seon Woo KIM
IPC: C08L33/16 , C09D133/16
CPC classification number: C08L33/16 , C09D133/16
Abstract: The present invention relates to a composition for forming a composite polymer film, a method for preparing the composition for forming a composite polymer film, a composite polymer film and a method for preparing the composite polymer film. The composition for forming a composite polymer film comprises: a fluorine-based polymer solution comprising a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the fluorine-based polymer solution. The method for preparing the composition for forming a composite polymer film comprises the steps of: preparing a fluorine-based polymer solution comprising a fluorine-based polymer; and dispersing polyvinylidene fluoride nanoparticles in the fluorine-based polymer solution. The composite polymer film comprises: a polymer matrix formed from a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the polymer matrix. The method for preparing the composite polymer film comprises the steps of: preparing a fluorine-based polymer solution comprising a fluorine-based polymer; preparing a composition, for forming a composite polymer film, by dispersing polyvinylidene fluoride nanoparticles in the fluorine-based polymer solution; and forming the composite polymer film by applying the composition for forming a composite polymer film.
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公开(公告)号：US20230100403A1
公开(公告)日：2023-03-30
申请号：US17907844
申请日：2021-02-22
Inventor： Hong Suk KANG , In Joon PARK , Shin Hong YOOK , Eun-Ho SOHN , Sang Goo LEE , Soo Bok LEE , Won Wook SO
Abstract: According to an embodiment of the present invention, provided is a process for polymerizing molecular weight—adjustable polymer, comprising: a reactant supply step of supplying a gaseous monomer, a surfactant, and an initiator; a polymerization reaction step of performing a polymerization reaction in which the monomer, the surfactant, and the initiator participate; and a product discharging step of discharging the polymer compound produced by the polymerization reaction, wherein the flow rate of the supplied initiator is inversely proportional to the molecular weight of the polymer compound, and the molecular weight of the polymer compound produced by the polymerization reaction is adjusted by controlling the flow rate of the initiator.
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公开(公告)号：US20250084196A1
公开(公告)日：2025-03-13
申请号：US18580684
申请日：2022-07-04
Inventor： Eun-Ho SOHN , Won Wook SO , In Joon PARK , Bong Jun CHANG , Hong Suk KANG , Ju Hyeon KIM , Ji Hoon BAIK , Sang Goo LEE , Hyeon Jun HEO , Shin Hong YOOK , Dong Je HAN , Ji Young LEE
IPC: C08F220/14 , C08F220/22 , C08J5/18
Abstract: An aspect of the present invention is to provide a fluorine-based polymer showing a significantly low dielectric constant of less than 1.8 and a fluorine-based polymer composition including the same. The fluorine-based polymer provided in an aspect of the present invention shows a very low dielectric constant, wherein the polymer is not only a pollution-reducing material generating no harmful substance, but may also be utilized as a coating material in various fields due to high adhesiveness. Furthermore, a polymer film employing the polymer as a material has a volume resistance of about 5.8×1015 Ohmcm, showing an excellent resistance value as an insulating material.
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7.发明公开公开(公告)号：US20240194372A1
公开(公告)日：2024-06-13
申请号：US18250147
申请日：2021-10-25
Applicant: KOREA ELECTRO TECHNOLOGY RESEARCH INSTITUTE , KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventor： Ki Dong SONG , Yeon Ho OH , Hyun Jae JANG , In Joon PARK , Won Wook SO , Shin Hong YOOK , Sang Goo LEE , Hong suk KANG , Ju Hyeon KIM , Ji Hoon BAIK , Eun Ho SOHN , Myoung Sook LEE , Bong Jun CHANG
IPC: H01B3/56 , H01H33/56 , H02B13/055
CPC classification number: H01B3/56 , H01H33/56 , H02B13/055 , H01H2033/566
Abstract: The present invention relates to an insulating gas used for electrical insulation or arc extinguishing of an electrical device, and an electrical device for insulating electricity using the same. The insulating gas of the present invention, which may replace SF6 gas, consists of a mixed gas of trifluoromethyl trifluorovinyl ether (CF3OCFCF2) and a carrier gas. The insulating gas of the present invention has the characteristics of a low boiling point, high dielectric strength, low toxicity, and a low global warming potential (GWP=1 or less), and thus may replace SF6, and the low global warming potential with no loss of high insulating capacity and arc extinguishing capability may reduce greenhouse gases.
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