Title:
LAMINATE
Document Type and Number:
WIPO Patent Application WO/2023/243693
Kind Code:
A1
Abstract:
[Problem] To provide a laminate of a polyimide film and a protective film, the laminate having favorable strength, handling properties, die-cutting processability, and winding-up performance. [Solution] Provided is a laminate comprising a polyimide film and a protective film which is layered on at least one surface of the polyimide film. The yellowness index of the polyimide film is 10 or less. The protective film includes a polyethylene terephthalate structure. The product of the tensile modulus of elasticity E1 (GPa) and the film thickness T1 (μm) of the laminate is 200-340.
Inventors:
NAKAMURA MAKOTO (JP)
Application Number:
PCT/JP2023/022319
Publication Date:
December 21, 2023
Filing Date:
June 15, 2023
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/34; B32B7/022; B32B27/36
Domestic Patent References:
| WO2022185607A1 | 2022-09-09 | |||
| WO2013191052A1 | 2013-12-27 | |||
| WO2020261775A1 | 2020-12-30 | |||
| WO2021124865A1 | 2021-06-24 | |||
| WO2021045557A1 | 2021-03-11 | |||
| WO2021066516A1 | 2021-04-08 |
Foreign References:
| JP2021024283A | 2021-02-22 | |||
| JP2007320058A | 2007-12-13 | |||
| JP2020100026A | 2020-07-02 | |||
| JPH115954A | 1999-01-12 | |||
| JP2020093534A | 2020-06-18 |
Download PDF: