| abstract |
(Problem) The polyimide laminated body which is excellent in the handleability and dimensional stability of the polyimide film which has transparency, and can isolate | separate a polyimide film easily from a support base material, and its manufacturing method are provided. (Solution means) A polyimide laminate having a support substrate on the back side of the polyimide layer, wherein the polyimide layer has a transmittance of 70% or more in a predetermined wavelength region, and the surface of the support substrate at these interfaces is The glass transition temperature Tg is formed of a heat-resistant polyimide having a temperature of 300 ° C. or more, the surface roughness Ra is 100 nm or less, the adhesive strength of the support substrate and the polyimide layer is 1 N / m or more and 500 N / m or less, and the polyimide from the support substrate The polyimide laminated body which is a polyimide laminated body which isolate | separated the layer, and also apply | coats and imidizes the resin solution of polyamic acid, conveying a elongate support base material by the roll-to-roll process, and forms a predetermined polyimide layer. It is a manufacturing method of. |