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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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Patent Agency Ranking
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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公开(公告)号：US10689489B2
公开(公告)日：2020-06-23
申请号：US16064405
申请日：2017-06-22
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 exhibiting excellent mechanical properties while being colorless and transparent. The polyimide-based film may be used as a cover film of various flexible or foldable devices.
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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：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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