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1.发明公开公开(公告)号：US20240174825A1
公开(公告)日：2024-05-30
申请号：US18502082
申请日：2023-11-06
发明人： Jin Yong LEE , Han Jun KIM , Jin Woo LEE
CPC分类号： C08J5/18 , C08K5/05 , C08J2379/08
摘要： The embodiments aim to provide a polyamide-imide-based film, which comprises an alcohol-based supplement therein and is excellent in mechanical properties, optical properties, and suitability for post-processing. Further, the embodiments aim to provide a process for preparing the polyamide-imide-based film, and a cover window and a display device comprising the polyamide-imide-based film.
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2.发明公开公开(公告)号：US20230287192A1
公开(公告)日：2023-09-14
申请号：US18107439
申请日：2023-02-08
发明人： Sang Hun CHOI , Hak Soo LEE , Jin Woo LEE
IPC分类号： C08J7/043 , C09D175/04 , C09D167/00
CPC分类号： C08J7/043 , C09D175/04 , C09D167/00 , C08J2377/10 , C08J2467/00 , C08J2375/04
摘要： In the multilayer film provided with a primer layer of a specific composition comprising a polyester-based resin on a polyamide-based base layer, the adhesive strength with a hard coating layer and an OCA layer to be coated on the surface thereof is excellent, as well as the optical and mechanical properties are also excellent.
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3.发明公开公开(公告)号：US20230312825A1
公开(公告)日：2023-10-05
申请号：US18044084
申请日：2021-09-08
发明人： Han Jun KIM , Dae Seong OH , Sun Hwan KIM , Jin Woo LEE , Heung Sik KIM , Jiyeon RYU
CPC分类号： C08G69/265 , C08J5/18 , C08J2377/06
摘要： Embodiments relate to a polyamide-based film, a manufacturing method therefor, and a cover window and a display device each comprising same, wherein the polyamide-based film has excellent optical characteristics, such as transmittance, haze, and yellowness, and excellent mechanical characteristics, such as modulus and thickness uniformity. The polyamide-based film contains a polyamide-based polymer and includes a sum XRD peak obtained by adding up a first XRD peak having the maximum value in the section where the 2θ value is 10° (inclusive) to 20° (exclusive) and a second XRD peak having the maximum value in the section where the 2θ value is 20° to 25°, on the XRD graph, wherein the full width at half maximum of the first XRD peak is 6° or less.
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4.发明公开公开(公告)号：US20240279398A1
公开(公告)日：2024-08-22
申请号：US18495751
申请日：2023-10-27
发明人： Han Jun KIM , Jin Yong LEE , Jin Woo LEE
CPC分类号： C08G73/1028 , C08G73/14
摘要： The embodiments aim to provide a polyamide-imide-based film that has a TGA weight loss area value (TDA) of 0.01%·min/° C. or less and is excellent in mechanical properties, optical properties, and the suitability for post-processing, a process for preparing the same, and a cover window and a display device comprising the same.
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5.发明公开公开(公告)号：US20240010803A1
公开(公告)日：2024-01-11
申请号：US18337037
申请日：2023-06-19
发明人： Hak Soo LEE , Sang Hun CHOI , Jin Woo LEE
CPC分类号： C08J5/18 , C08G69/42 , C08K7/18 , C08J2377/10 , C08G2220/00 , C08K2201/003 , C08K2201/011
摘要： The embodiments relate to a polyamide-based film that is excellent in solvent resistance and optical properties, to a process for preparing the same, and to a cover window and a display device comprising the same. The polyamide-based film comprises a polyamide-based polymer, wherein when the 3D surface roughness of a first side of the film is measured, the volume (natural volume) between the surface and a reference plane placed at the elevation of the highest peak parallel to the surface plane is 100 μm3 to 2,800 μm3.
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