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公开(公告)号：US20220227943A1
公开(公告)日：2022-07-21
申请号：US17575741
申请日：2022-01-14
发明人： Hye Ri Kim , Seung Min Jeon , Jin Hyung Park
摘要： Provided are a polyamideimide resin, and a polyamideimide film and a window cover film including the same. More particularly, a polyamideimide resin for preparing a polyamideimide film which satisfies both optical properties and mechanical properties which are in a trade-off relationship with each other and has more improved mechanical properties than a conventional polyamideimide film, a polyamideimide film using the same, and a window cover film including the same are provided.
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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：US20230119106A1
公开(公告)日：2023-04-20
申请号：US17967096
申请日：2022-10-17
发明人： Hyo Shin Kwak , Hye Ri Kim , Jin Hyung Park , Hyun Kyu Cho
IPC分类号： C07C323/42 , C08G73/10 , C08J5/18
摘要： An embodiment relates to a diamine compound, a polymer including a structural unit derived therefrom, a composition for forming a polyimide film including the polymer, and a polyimide film prepared by using the composition. Specifically, the diamine compound according to an embodiment may be very usefully used as a monomer for preparing a polyimide film that is colorless and has an improved mechanical strength.
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公开(公告)号：US11970579B2
公开(公告)日：2024-04-30
申请号：US17077676
申请日：2020-10-22
发明人： Hyeon Jeong Kim , Sang Yoon Park , Tae Sug Jang , Jin Hyung Park
CPC分类号： C08G73/14 , C08G73/1007 , C08G73/1067 , C08J5/18 , C08J2379/08
摘要： Provided are a polyamic acid resin derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride, and a polyamideimide film including polyamideimide derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride.
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公开(公告)号：US20220363831A1
公开(公告)日：2022-11-17
申请号：US17742898
申请日：2022-05-12
发明人： Seung Min Jeon , Jin Hyung Park , Hye Ri Kim , Cheol Min Yun
摘要： Provided is a polyamideimide film and an image display device including the same and a polyamideimide film which may satisfy a high light transmittance while maintaining mechanical properties to significantly improve viewing properties, and may satisfy all of a low refractive index, a low retardation in the unit thickness direction (Rth), a low yellow index, a low haze, and the like to significantly improve optical properties such as transparency and visibility. An image display device including the same is also provided.
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6.发明申请公开(公告)号：US20210040282A1
公开(公告)日：2021-02-11
申请号：US16985562
申请日：2020-08-05
发明人： Min Sang Park , Jin Hyung Park , Seung Min Jeon , Yoo Seock Hwang
摘要： Provided are a transparent film, an optical material including the same, and a display device including the same.
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公开(公告)号：US11921546B2
公开(公告)日：2024-03-05
申请号：US17244033
申请日：2021-04-29
发明人： Jin Su Park , Hye Ri Kim , Jin Hyung Park , Yoo Seock Hwang
CPC分类号： G06F1/1652 , B32B27/281 , C08G73/14 , G02B1/04 , G02B1/14 , B32B2307/51 , B32B2457/206 , B32B2457/208 , C09K2323/03
摘要： The present invention relates to a polyimide-based film, a window cover film including the polyimide-based film, and a display panel including the polyimide-based film. More specifically, the present invention relates to a polyimide-based film of which a modulus measured according to ASTM D882 is 5 GPa or more and a rate of change of the modulus, after the polyimide-based film is maintained under a high-temperature and high-humidity condition of 60° C. and 90% RH for 500 hours, is 10% or less.
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公开(公告)号：US20230125363A1
公开(公告)日：2023-04-27
申请号：US17972745
申请日：2022-10-25
发明人： Jong Chan Kim , Jin Hyung Park , Seung Min Jeon , Hyo Shin Kwak , So Young Lee
IPC分类号： C08G73/14
摘要： Provided are a polyamideimide precursor, a polyamideimide prepared therefrom, and a polyamideimide film including the same. Specifically, the polyamideimide film according to an exemplary embodiment includes a polyamideimide derived from a combination of specific compositions to implement a high modulus and excellent optical properties.
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9.发明授权公开(公告)号：US11814491B2
公开(公告)日：2023-11-14
申请号：US16985562
申请日：2020-08-05
发明人： Min Sang Park , Jin Hyung Park , Seung Min Jeon , Yoo Seock Hwang
CPC分类号： C08J5/18 , C08G73/10 , C08J2379/08
摘要： Provided are a transparent film, an optical material including the same, and a display device including the same.
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公开(公告)号：US20230122622A1
公开(公告)日：2023-04-20
申请号：US17966935
申请日：2022-10-17
发明人： Jin Hyung Park , Hye Ri Kim , Seung Min Jeon
IPC分类号： C08L79/08 , C07C233/81 , C08J5/18 , C07C211/37 , C07D493/04
摘要： The present disclosure relates to a composition containing a polyamideimide precursor and/or polyamideimide, a polyamideimide film produced using the composition, and a display device including the polyamideimide film. The polyamideimide film produced using the composition and the display device including the polyamideimide film have excellent mechanical and optical properties.
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