FIELD: plastic processing. SUBSTANCE: method involves watering of polyamideacid solution on the forming surface of drum treated with antiadhesion coating. The first layer of antiadhesion coating is water-repellent liquid, the second layer is a composition, wt.-%: mixture of organosilicon oligomers with vinyl and hydride groups of the formula 
; 0.01 M solution of H2Pt Cl6·6H2O in isopropanol 0.05-0.3, and hexane up to 100. Hardening of layer is carried out at 105-110 C for 1.5-5 h. EFFECT: increased output, improved quality of polyimide films. 2 tbl
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