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1.发明公开公开(公告)号：US20240109858A1
公开(公告)日：2024-04-04
申请号：US18274594
申请日：2022-03-23
Applicant: LG Chem, Ltd. , LG Energy Solution, Ltd.
Inventor： Jung Keun Kim , Su Jeong Kim , Mi Sook Lee , Won Kyun Lee , Duk Hun Jang , Jeong Ae Yoon , Kyoung Hoon Kim , Chul Haeng Lee , Mi Yeon Oh , Kil Sun Lee , Jung Min Lee , Esder Kang , Chan Woo Noh , Chul Eun Yeom
IPC: C07D327/04 , H01M10/052 , H01M10/0567
CPC classification number: C07D327/04 , H01M10/052 , H01M10/0567
Abstract: The present invention relates to a compound capable of lowering the flammability of a non-aqueous electrolyte when included in the non-aqueous electrolyte and improving the life properties of a battery by forming an electrode-electrolyte interface which is stable at high temperatures and low in resistance, and relates to a compound represented by Formula I descried herein, a non-aqueous electrolyte solution and a lithium secondary battery both including the compound,
n, m, Ak, and X are described herein.-
公开(公告)号：US12140831B2
公开(公告)日：2024-11-12
申请号：US15734968
申请日：2019-10-25
Applicant: LG CHEM, LTD.
Inventor： Jin Young Park , Yunah Yu , Duk Hun Jang , Yongjoon Heo , Yeongrae Chang
Abstract: The present disclosure relates to a cover window for a flexible display device and a flexible display device including the cover window, wherein the cover window includes a polymer substrate including a polyamideimide block copolymer; and a hard coating layer formed on at least one surface of the polymer substrate and having a pencil hardness of 5H or more under a load of 750 g, and no crack occurs when wound on a mandrel having a diameter of 3 mm.
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公开(公告)号：US11377556B2
公开(公告)日：2022-07-05
申请号：US16332389
申请日：2017-12-13
Applicant: LG CHEM, LTD.
Inventor： Duk Hun Jang , Byung Guk Kim , Young Sik Eom , Sung Yeol Choi , Sang Gon Kim , Jin Sook Ryu , Sun Ok Oh , Hyung Sam Choi
Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based block copolymer film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having low haze and yellow index value while exhibiting excellent transparency.
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公开(公告)号：US11098160B2
公开(公告)日：2021-08-24
申请号：US15769847
申请日：2017-10-12
Applicant: LG CHEM, LTD.
Inventor： Sung Yeol Choi , Byung Guk Kim , Sang Gon Kim , Duk Hun Jang , Hyung Sam Choi
Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having a large molecular weight and exhibiting colorless and transparent properties.
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公开(公告)号：US10800882B2
公开(公告)日：2020-10-13
申请号：US15773829
申请日：2017-09-08
Applicant: LG CHEM, LTD.
Inventor： Sang Gon Kim , Sung Yeol Choi , Duk Hun Jang , Hyung Sam Choi
Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film exhibiting excellent mechanical properties while having a high molecular weight, and being colorless and transparent.
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Patent Agency Ranking
公开(公告)号：US11414520B2
公开(公告)日：2022-08-16
申请号：US16757484
申请日：2018-10-15
Applicant: LG CHEM, LTD.
Inventor： Yunah Yu , Hyung Sam Choi , Byung Guk Kim , Young Sik Eom , Sung Yeol Choi , Sang Gon Kim , Duk Hun Jang
Abstract: The polyamide-imide copolymer according to the present disclosure makes it possible to provide a polyamide-imide film that is excellent in both thermal stability and mechanical properties, and is capable of realizing anisotropy.
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公开(公告)号：US10428182B2
公开(公告)日：2019-10-01
申请号：US15741642
申请日：2017-07-07
Applicant: LG CHEM, LTD.
Inventor： Sanggon Kim , Hyungsam Choi , Duk Hun Jang
IPC: C08L81/02 , C08L81/06 , C08J5/18 , C08G75/20 , C08G75/0204 , C08G75/0209 , C08G75/0227 , C08G75/0236 , C08G75/0245
Abstract: The present disclosure provides a sulfide-based polymer, a film comprising the same, and a method for preparing the same.
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公开(公告)号：US20240014443A1
公开(公告)日：2024-01-11
申请号：US18031991
申请日：2022-03-28
Applicant: LG Chem, Ltd. , LG Energy Solution, Ltd.
Inventor： Su Jeong Kim , Jeong Ae Yoon , Jung Min Lee , Mi Sook Lee , Won Kyun Lee , Duk Hun Jang , Chan Woo Noh , Chul Eun Yeom , Kyoung Hoon Kim , Chul Haeng Lee
IPC: H01M10/0567 , H01M10/0525 , C07D411/12 , C07D327/04
CPC classification number: H01M10/0567 , H01M10/0525 , H01M2300/0025 , C07D327/04 , C07D411/12
Abstract: The present invention relates to a compound having a cyclic sulfur oxide structure, and a non-aqueous electrolyte solution additive, a non-aqueous electrolyte solution, and a lithium secondary battery which include the same, wherein the lithium secondary battery of the present invention may achieve improved effects in terms of high-temperature stability and gas generation while being able to achieve stable performance for a long time.
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公开(公告)号：US11518853B2
公开(公告)日：2022-12-06
申请号：US16630348
申请日：2018-12-07
Applicant: LG CHEM, LTD.
Inventor： Yunah Yu , Hyungsam Choi , Byungguk Kim , Youngsik Eom , Sungyeol Choi , Sanggon Kim , Duk Hun Jang
Abstract: There is provided a polyamide-imide resin film including a polyamide-imide block copolymer having a specific structure and having a predetermined retardation.
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公开(公告)号：US10717819B2
公开(公告)日：2020-07-21
申请号：US16091269
申请日：2017-11-14
Applicant: LG CHEM, LTD.
Inventor： Duk Hun Jang , Byung Guk Kim , Young Sik Eom , Sung Yeol Choi , Sang Gon Kim , Hyung Sam Choi
IPC: C08G73/10 , C08J5/18 , C08G73/14 , C09D179/08
Abstract: The present disclosure relates to a polyimide-based block copolymer film. The polyimide-based block copolymer film according to the present disclosure exhibits excellent an ultraviolet shielding property to be suitably used for substrates for displays, protective films for displays, touch panels, and the like.
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