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公开(公告)号：US20230123199A1
公开(公告)日：2023-04-20
申请号：US17957519
申请日：2022-09-30
发明人： Hyun Kyu Cho , Jin Hyung Park , Hyo Shin Kwak , Seung Min Jeon , Jong Chan Kim , Joo Hyun Lee
摘要： The present invention relates to a diamine, and a polymer and film produced using the same. Specifically, the diamine may be significantly effectively used as a monomer for producing a polyimide-based film that is colorless and transparent and has improved mechanical strength.
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公开(公告)号：US11851412B2
公开(公告)日：2023-12-26
申请号：US17463873
申请日：2021-09-01
发明人： Min Seon Jung , Hyo Shin Kwak , Joo Hyun Lee
IPC分类号： C07D263/57
CPC分类号： C07D263/57
摘要： The present invention relates to a diamine compound, a method of preparing the same, and a composition containing the same. The diamine compound of the present invention may be very usefully used as a monomer used to produce a polyimide film having excellent heat resistance and improved transparency and coefficient of thermal expansion.
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公开(公告)号：US20230096745A1
公开(公告)日：2023-03-30
申请号：US17895147
申请日：2022-08-25
发明人： Cheol Min Yun , So Young Lee , Hye Jin Park , Joo Hyun Lee
摘要： The present disclosure relates to a polyamideimide film-forming composition, a polyamideimide film, a method of preparing a polyamideimide film-forming composition, a method of producing a polyamideimide film, and uses of a polyamideimide film-forming composition and a polyamideimide film. The polyamideimide film according to one embodiment prevents deterioration of colorless and transparent optical properties, has excellent visibility with no optical stains, has excellent heat resistance, is flexible, and has excellent bending properties.
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公开(公告)号：US20220389165A1
公开(公告)日：2022-12-08
申请号：US17735811
申请日：2022-05-03
发明人： Joo Hyun Lee , Sang Yoon Park , So Young Lee
IPC分类号： C08G73/10 , C08J5/18 , C07D241/04 , C07D243/08 , C07D498/18
摘要： Provided a diamine compound, a polyimide precursor and a polyimide film using the same, and a use thereof. The diamine compound may be very useful as a monomer for manufacturing a polyimide film having excellent transparency, high heat resistance, and low retardation.
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公开(公告)号：US20220073681A1
公开(公告)日：2022-03-10
申请号：US17412755
申请日：2021-08-26
发明人： Min Seon Jung , Hyo Shin Kwak , Joo Hyun Lee
摘要： The present invention relates to a polyimide precursor, a polyimide precursor solution, a polyimide film, a manufacturing method thereof, and a use thereof. The polyimide precursor according to the present invention may provide a polyimide film that has excellent heat resistance and satisfies transparency and a low coefficient of linear thermal expansion, and thus the polyimide film will be usefully applicable in the field of flexible displays requiring high dimensional stability.
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公开(公告)号：US20220227934A1
公开(公告)日：2022-07-21
申请号：US17575761
申请日：2022-01-14
发明人： Joo Hyun Lee , Hye Ri Kim , Seung Min Jeon , Hyo Shin Kwak
摘要： The present disclosure relates to a compound used to prepare a polyamide-based polymer. More specifically, the present disclosure relates to a compound represented by the following Formula 1 and a polyamide-based polymer using the same. wherein n is an integer of 1 or 2.
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公开(公告)号：US11970578B2
公开(公告)日：2024-04-30
申请号：US17412755
申请日：2021-08-26
发明人： Min Seon Jung , Hyo Shin Kwak , Joo Hyun Lee
CPC分类号： C08G73/1085 , C08J5/18 , C08J2379/08
摘要： The present invention relates to a polyimide precursor, a polyimide precursor solution, a polyimide film, a manufacturing method thereof, and a use thereof. The polyimide precursor according to the present invention may provide a polyimide film that has excellent heat resistance and satisfies transparency and a low coefficient of linear thermal expansion, and thus the polyimide film will be usefully applicable in the field of flexible displays requiring high dimensional stability.
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公开(公告)号：US20220073480A1
公开(公告)日：2022-03-10
申请号：US17463873
申请日：2021-09-01
发明人： Min Seon Jung , Hyo Shin Kwak , Joo Hyun Lee
IPC分类号： C07D263/57
摘要： The present invention relates to a diamine compound, a method of preparing the same, and a composition containing the same. The diamine compound of the present invention may be very usefully used as a monomer used to produce a polyimide film having excellent heat resistance and improved transparency and coefficient of thermal expansion.
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9.发明申请公开(公告)号：US20200185774A1
公开(公告)日：2020-06-11
申请号：US16703917
申请日：2019-12-05
发明人： In Haeng Cho , Hyo Shin Kwak , Joo Hyun Lee , Dai In Park
IPC分类号： H01M10/0567 , H01M10/0569 , H01M10/0525 , H01M4/505 , H01M4/525 , C07F9/146
摘要： Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a difluorophosphite olefin compound, and a lithium secondary battery including the same.
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公开(公告)号：US11437647B2
公开(公告)日：2022-09-06
申请号：US16596813
申请日：2019-10-09
发明人： In Haeng Cho , Hyo Shin Kwak , Dai In Park , Jin Haek Yang , Joo Hyun Lee , Myoung Lae Kim , Sung Yon Oh , Su Hee Han
IPC分类号： H01M10/0567 , H01M10/052 , H01M10/0569
摘要： Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a bisfluorophosphite multicyclic compound, and a lithium secondary battery including the electrolyte.
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