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公开(公告)号：US10508175B2
公开(公告)日：2019-12-17
申请号：US15720992
申请日：2017-09-29
发明人： Sungwon Choi , Chanjae Ahn , Hyunjeong Jeon , Sang Soo Jee , Byunghee Sohn , Won Suk Chang
IPC分类号： C08G77/445 , C08G77/455 , C08G77/04 , C08L83/12 , C08G73/14 , C08G73/10 , C08L79/08 , C09D179/08 , C08G77/00 , C08G77/16 , C08G77/18
摘要： A composition including a polyamideimide precursor modified with an alkoxysilane group and an oligosilica compound, wherein the oligosilica compound is a condensation reaction product of an organosilane diol and an alkoxysilane compound.
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公开(公告)号：US10240002B2
公开(公告)日：2019-03-26
申请号：US15346876
申请日：2016-11-09
发明人： Hongkyoon Choi , Chanjae Ahn , Hyunjeong Jeon , Sang Soo Jee , Sungwon Choi , Sung Woo Hong , Byunghee Sohn
IPC分类号： C08G73/14 , B32B27/00 , C09D179/08 , C09J179/08 , C08G73/10
摘要： A poly(imide-amide) copolymer including a structural unit represented by Chemical Formula 1; a structural unit represented by Chemical Formula 2; and any one of a structural unit represented by Chemical Formula 3, an amic acid precursor of the structural unit represented by Chemical Formula 3, and a combination thereof; wherein a cured material of the poly(imide-amide) copolymer may have a tensile modulus of greater than or equal to about 5.5 GPa, and a yellowness index of less than or equal to about 5: wherein, groups and variables in Chemical Formulae 1 and 3 are the same as described in the specification.
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公开(公告)号：US09988493B2
公开(公告)日：2018-06-05
申请号：US14741959
申请日：2015-06-17
发明人： Chanjae Ahn , Sungwon Choi , Sungwoo Hong , Byunghee Sohn , Sun Jin Song , Kyeong-sik Ju
CPC分类号： C08G73/14 , C08G73/1039
摘要： A poly(amide-imide) copolymer including a structural unit represented by Chemical Formula 1; a structural unit represented by Chemical Formula 2, and/or an amic acid precursor structural unit which forms the structural unit represented by Chemical Formula 2 through imidization; and a structural unit represented by Chemical Formula 3, and/or an amic acid precursor structural unit which forms the structural unit represented by Chemical Formula 3 through imidization, wherein the poly(amide-imide) copolymer has a modulus of greater than or equal to about 5.5 giga Pascals after being cured, a yellowness index YI of less than or equal to about 3.5, and an increase in yellowness index ΔYI of less than or equal to about 0.7 after being exposed to ultraviolet light for 72 hours: wherein in Chemical Formulae 1 to 3, groups and variables are the same as described in the specification.
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公开(公告)号：US10072180B2
公开(公告)日：2018-09-11
申请号：US14744621
申请日：2015-06-19
发明人： Sungwon Choi , Chanjae Ahn , Sungwoo Hong , Byunghee Sohn , Hyunjeong Jeon , Kyeong-sik Ju
IPC分类号： C08G73/10 , C09D179/08 , B32B27/08 , C08G73/14
CPC分类号： C09D179/08 , C08G73/1028 , C08G73/1039 , C08G73/1042 , C08G73/1067 , C08G73/14
摘要： A composition for preparing an article including a poly(imide-amide) copolymer, the composition including (i) a copolymer obtained by reacting a tetracarboxylic acid dianhydride represented by Chemical Formula 1, a diamine represented by Chemical Formula 2, and a carboxylic acid dichloride to form a reaction product, followed by removing hydrochloric acid from the reaction product, (ii) an acid anhydride, and (iii) a solvent: Wherein group R1 in Chemical Formula 1 and group R2 in Chemical Formula 2 are the same as described in the specification.
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公开(公告)号：US10927218B2
公开(公告)日：2021-02-23
申请号：US16126270
申请日：2018-09-10
发明人： Boreum Jeong , Sang Soo Jee , Won Suk Chang , Kyeong-sik Ju , Chanjae Ahn , A Ra Jo , Sungwon Choi
摘要： A poly(amide-imide) copolymer that is a reaction product of a substituted or unsubstituted aromatic diamine having a maximum absorption wavelength in a range from 500 nanometers (nm) to 650 nm in a visible light region, a diamine represented by Chemical Formula 1, a dicarbonyl compound represented by Chemical Formula 2, and a tetracarboxylic acid dianhydride represented by Chemical Formula 3: wherein, in Chemical Formulae 1 to 3, A, R3, R10, R12, R13, X, n7 and n8 are the same as defined in the specification.
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公开(公告)号：US10858482B2
公开(公告)日：2020-12-08
申请号：US14879287
申请日：2015-10-09
发明人： Sung Woo Hong , Byung-hee Sohn , Sun Jin Song , Chanjae Ahn , Kyeong-sik Ju , Sungwon Choi
IPC分类号： C08G73/22 , C08G73/10 , C08G73/14 , C08J5/18 , C09D179/08 , C09D179/04
摘要： A composition for preparing poly(imide-benzoxazole) copolymer is described, where the copolymer include: a tetracarboxylic acid dianhydride represented by Chemical Formula 1, a diamine represented by Chemical Formula 2, and a diamine represented by Chemical Formula 3: wherein definitions of groups and variables in Chemical Formulae 1 to 3 are the same as described in the specification.
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公开(公告)号：US10815343B2
公开(公告)日：2020-10-27
申请号：US16016734
申请日：2018-06-25
发明人： Byunghee Sohn , Sungwon Choi
IPC分类号： C08J3/24 , C08G73/10 , C08J5/18 , C08G73/14 , C09D179/08
摘要： A composition for preparing at least one of a polyimide and a poly(imide -amide) copolymer, the composition including at least one of a polyamic acid and a poly(amic acid-amide) copolymer, and at least one of a carbodiimide derivative and a carbodiimidazole derivative.
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公开(公告)号：US10591761B2
公开(公告)日：2020-03-17
申请号：US15789695
申请日：2017-10-20
发明人： Sang Soo Jee , Sun Jin Song , Chanjae Ahn , Sungwon Choi
IPC分类号： C08G73/14 , G02F1/1333 , C09D183/06 , C08J7/04 , C08K5/5419 , C08L79/08
摘要： A flexible plastic substrate includes a film including a poly(amide-imide) copolymer; and a hard coating layer disposed on a first surface of the film, wherein the hard coating layer includes a crosslinked siloxane copolymer, and wherein the flexible plastic substrate has pencil hardness of greater than or equal to 2H under a vertical load of 1 kilogram according to ASTM D3363, a total light transmittance of greater than or equal to about 89% in a wavelength region of 350 nanometers to 750 nanometers.
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公开(公告)号：US11926127B2
公开(公告)日：2024-03-12
申请号：US16929382
申请日：2020-07-15
发明人： Chanjae Ahn , Sun Jin Song , Won Suk Chang , Boreum Jeong , A Ra Jo , Kyeong-Sik Ju , Sungwon Choi
CPC分类号： B32B27/34 , B32B27/08 , B32B27/283 , C08G69/265 , C08G69/42 , C08J7/0427 , C08J7/046 , G02B1/14 , B32B2307/412 , B32B2307/536 , B32B2457/20 , C08J2377/06 , C08J2483/04
摘要： Disclosed is a window film for a display device including a light transmitting substrate including a polyamide including a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and a hard coating layer laminated on one surface of the light transmitting substrate:
in Chemical Formula 1 and Chemical Formula 2, each of A1, A2, B, and D is the same as defined in the detailed description.-
公开(公告)号：US11898012B2
公开(公告)日：2024-02-13
申请号：US17246926
申请日：2021-05-03
发明人： A Ra Jo , Chanjae Ahn , Sungwon Choi , Won Suk Chang , Boreum Jeong
CPC分类号： C08G73/14 , B29C41/003 , B29C41/46 , C08G73/1039 , C08G73/1042 , C08J5/18 , B29K2079/08 , B29L2007/008 , C08J2379/08
摘要： A poly(amide-imide) copolymer that is a reaction product of a substituted or unsubstituted linear aliphatic diamine including two terminals, a diamine represented by Chemical Formula 1, a dicarbonyl compound represented by Chemical Formula 2, and a tetracarboxylic acid dianhydride represented by Chemical Formula 3:
NH2-A-NH2 Chemical Formula 1
wherein, in Chemical Formulae 1 to 3, A, R3, R10, R12, R13, X, n7 and n8 are the same as defined in the specification.
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