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Method for producing three layer co-extruded polyimide film
Method for producing three layer co-extruded polyimide film
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机译:三层共挤聚酰亚胺薄膜的生产方法
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摘要
In the present invention, (i) a polyamic acid solution for forming a thermoplastic polyimide layer to be in no contact with a support contains no chemical dehydrating agent or imidization catalyst, (ii) a polyamic acid solution for forming a thermoplastic polyimide layer to be in contact with the support contains an imidization catalyst, and (iii) a polyamic acid solution for forming a non-thermoplastic polyimide layer contains a chemical dehydrating agent and an imidization catalyst. This arrangement eliminates a property difference between the thermoplastic polyimide layers.
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