Patent ID: 11970579
Assignee: SK GEO CENTRIC CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H | IPC C

Claim 0:
1. A polyamideimide film comprising polyamideimide derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride, wherein
the cycloaliphatic dianhydride includes a compound represented by the following Chemical Formula 1,
the aromatic dianhydride includes IBIS-BAN (CAS No. 867350-98-9) represented by the following Chemical Formula 2, and
the polyamideimide film has a total light transmittance of 89% or more, and a light transmittance measured at 388 nm of 10% or less, based on a thickness of 55 um:, wherein
R1 to R4 are independently of one another, selected from the group consisting of hydrogen, halogen, a C1 to C10 alkoxy group or a C1 to C10 alkoxy group, wherein a content of the cycloaliphatic dianhydride is 5 to 30 mol, based on 100 mol of the aromatic diamine,,