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公开(公告)号：US20190219883A1
公开(公告)日：2019-07-18
申请号：US16368268
申请日：2019-03-28
Applicant: LG CHEM, LTD.
Inventor： Ji Yeon KIM , Dong Hyun LEE , Jae Sung HAN , Su Hee LEE , Sa Rah KIM , Doo Hoon SONG
IPC: G02F1/163 , G09G3/19 , G02F1/155 , G02F1/1516 , G02F1/1524 , G02F1/1523
CPC classification number: G02F1/163 , G02F1/1516 , G02F1/15245 , G02F1/1525 , G02F1/155 , G02F2001/1517 , G09G3/19
Abstract: An electrochromic module and a driving method for an electrochromic are provided. The electrochromic module has an electrochromic device provided so as to be colored or bleached depending on an applied drive voltage, a sensing part for sensing an external temperature of the electrochromic device, a control part for determining an application time of a voltage satisfying a particular Relation Equation depending on the sensed external temperature, and a power supply part for applying a voltage to the electrochromic device by the determined application time.
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公开(公告)号：US20190152910A1
公开(公告)日：2019-05-23
申请号：US16091475
申请日：2017-11-06
Applicant: LG CHEM, LTD.
Inventor： Joo Young CHEON , Jun Seon CHOI , Ji Yeon KIM , Wang Rae JOE , Kyung Soo KIM , Eung Seob YEOM , Won Kyun LEE
IPC: C07D207/452 , B01J27/16 , B01J27/28
Abstract: The present invention relates to a synthesis method of N-substituted maleimides using a non-homogeneous solid acid catalyst, and particularly, a synthesis method of N-substituted maleimides with high synthesis yield by using a zirconium(IV) hydrogen phosphate as a catalyst, by which, the loss of the catalyst is minimized, the separation and recovering processes of the catalyst are simplified, in case when the activity of the separated and recovered catalyst is decreased, the complete regeneration of the catalyst is possible via washing or firing, and solvents that could be used during a washing process of the catalyst are not limited.
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公开(公告)号：US20180273460A1
公开(公告)日：2018-09-27
申请号：US15762868
申请日：2016-12-15
Applicant: LG CHEM, LTD.
Inventor： Kyung Soo KIM , Jun Seon CHOI , Ji Yeon KIM , Joo Young CHEON , Wang Rae JOE , Hye Jeong OK
IPC: C07C51/25 , C07C45/52 , B01J27/198 , B01J23/888
CPC classification number: C07C51/252 , B01J23/8885 , B01J27/198 , C07C45/52 , C07C47/22 , C07C57/04
Abstract: The present invention relates to a method for preparing acrylic acid from glycerin. More specifically, the present invention provides a method which can improve the selectivity of acrolein by applying a specific catalyst composition and process conditions to minimize the generation of coke carbon of the catalyst, and can prepare acrylic acid with higher productivity for a longer duration of time because a dehydration reaction can be performed for a longer working period while maintaining catalyst activity at a high level during the reaction.
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4.发明申请公开(公告)号：US20190276607A1
公开(公告)日：2019-09-12
申请号：US16335168
申请日：2017-10-30
Applicant: LG CHEM, LTD.
Inventor： Kyung Oh KIM , Sa Rah KIM , Ji Yeon KIM , Sung Soo YOON , Su Hee LEE , Su Jeong KIM , Jeong Ae YOON
Abstract: The present application relates to a gel polymer electrolyte, a method for producing a gel polymer electrolyte, and an electrochromic device comprising the same. As the gel polymer electrolyte comprises a block copolymer, the present application can simultaneously satisfy high ionic conductivity, low turbidity and adhesiveness.
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公开(公告)号：US20190118168A1
公开(公告)日：2019-04-25
申请号：US16091091
申请日：2017-08-01
Applicant: LG CHEM, LTD.
Inventor： Ji Yeon KIM , Jun Seon CHOI , Joo Young CHEON , Wang Rae JOE , Kyung Soo KIM
CPC classification number: B01J27/16 , B01J21/066 , B01J27/18 , B01J35/002 , B01J35/1009 , B01J35/1019 , B01J35/1061 , B01J37/00 , B01J37/03 , B01J37/031 , B01J37/04 , B01J37/06 , B01J37/08 , C07D207/444 , C07D207/448
Abstract: A dehydration catalyst for preparing N-substituted maleimide, which may minimize formation of by-products, is reusable because its activity is not reduced significantly even after being reused several times, and may maintain its reaction activity for a long time, a preparation method thereof, and a method of preparing N-substituted maleimide, are provided.
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Patent Agency Ranking
公开(公告)号：US20200207710A1
公开(公告)日：2020-07-02
申请号：US16615015
申请日：2018-08-29
Applicant: LG CHEM, LTD.
Inventor： Joo Young CHEON , Jun Seon CHOI , Ji Yeon KIM , Ki Hyuk KANG
IPC: C07D207/448
Abstract: The present invention relates to a method for purifying N-substituted maleimide. More specifically, the present invention, without performing a water washing process, enables to remove organic-acid-impurities which are difficult to remove through distillation because of having similar boiling points to the N-substituted maleimide compound by utilizing solubility of organic-acid-impurities in an organic solvent used in the preparing process of the maleimide compound, and thereby, without producing washing wastewater, ensuring removal efficiency of the organic-acid-impurities equal to or similar to an N-substituted maleimide compound subjected to a water washing process.
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公开(公告)号：US20180257063A1
公开(公告)日：2018-09-13
申请号：US15749472
申请日：2016-12-15
Applicant: LG CHEM. LTD.
Inventor： Jun Seon CHOI , Ji Yeon KIM , Joo Young CHEON , Wang Rae JOE , Hye Jeong OK , Kyung Soo KIM
CPC classification number: B01J27/1808 , B01J23/002 , B01J27/1853 , B01J27/188 , B01J27/195 , B01J35/1014 , B01J35/1019 , B01J37/031 , B01J37/06 , B01J37/08 , B01J37/088 , B01J2523/00 , C07C45/52 , C07C47/22 , B01J2523/48 , B01J2523/51 , B01J2523/69 , B01J2523/842 , B01J2523/55 , B01J2523/27 , B01J2523/56
Abstract: The present disclosure relates to a catalyst for dehydration of glycerin, a preparation method thereof, and a production method of acrolein using the catalyst.Particularly, the catalyst according to an embodiment of the present disclosure is used in a dehydration reaction of glycerin to exhibit high catalytic activity, a high yield, and high selectivity to acrolein and acrylic acid, and has a longer lifetime compared to the conventional catalysts due to a characteristic that coke carbon cannot be easily deposited on the surface of the catalyst.
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公开(公告)号：US20170338468A1
公开(公告)日：2017-11-23
申请号：US15538042
申请日：2016-01-13
Applicant: LG Chem, Ltd.
Inventor： Ji Yeon KIM , Taek Soo LEE , Jun Soo PARK , Sang Hoon CHOY
IPC: H01M4/139 , H01M10/0525 , H01M4/62
CPC classification number: H01M4/139 , H01M4/0404 , H01M4/623 , H01M4/624 , H01M10/0525
Abstract: Provided are a method of preparing a composition for forming a positive electrode of a lithium secondary battery which includes preparing a first dispersed solution by primary dispersion of a conductive agent and a dispersant in a solvent, preparing a second dispersed solution by adding binder powder to the first dispersed solution and performing secondary dispersion, and adding and mixing a positive electrode active material to the second dispersed solution, and a positive electrode and a lithium secondary battery which are prepared by using the composition.A composition for forming a positive electrode of a lithium secondary battery, which has improved dispersibility, may be prepared by the above method, and internal resistance of the battery may be reduced and output characteristics may be improved when a positive electrode is prepared by using the composition.
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9.发明申请公开(公告)号：US20150298105A1
公开(公告)日：2015-10-22
申请号：US14440270
申请日：2014-07-15
Applicant: LG CHEM, LTD.
Inventor： Jun Seon CHOI , Ji Yeon KIM , Joo Young CHEON , Wang Rae JOE
IPC: B01J27/195 , C07C45/52 , B01J37/04 , B01J27/188 , B01J37/08
CPC classification number: B01J27/195 , B01J27/053 , B01J27/055 , B01J27/188 , B01J37/0236 , B01J37/04 , B01J37/08 , B01J37/20 , B01J37/28 , B01J2523/00 , C07C29/60 , C07C45/29 , C07C45/52 , C07C31/225 , C07C47/22 , B01J2523/17 , B01J2523/62 , B01J2523/69 , B01J2523/305 , B01J2523/51 , B01J2523/56 , B01J2523/3712
Abstract: The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein, and more particularly, to a catalyst for glycerin dehydration which minimizes by-product formation during glycerin dehydration to improve acrolein selectivity and maintains high catalytic activity during reaction.
Abstract translation: 本发明涉及一种用于甘油脱水的催化剂及其制备方法和丙烯醛的制备方法，更具体地说，涉及甘油脱水催化剂，其使甘油脱水期间的副产物形成最小化以改善丙烯醛选择性并保持高催化性 反应过程中的活性。
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公开(公告)号：US20210040008A1
公开(公告)日：2021-02-11
申请号：US16964924
申请日：2019-03-18
Applicant: LG CHEM, LTD. , FARMHANNONG CO., LTD.
Inventor： Chanjoong KIM , Sangryeo LEE , Joon Seok LEE , Yil JANG , Ji Yeon KIM , Jae Hoon CHOE
Abstract: The present disclosure relates to a controlled-release fertilizer and, more particularly, to a controlled-release fertilizer comprising a photodegradable capsule including a binder resin containing a polyolefin and an ethylene vinyl acetate copolymer; and a photocatalytic composite in which a surfactant having an HLB value of 1 to 6 is bonded to the surface or inside of aggregates of inorganic fine particles, and a fertilizer contained in a space surrounded by the photodegradable capsule.
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