FIELD: polymer production. SUBSTANCE: invention relates to production of polymeric film materials with special mechanical properties, which can be used in food and processing industries. Process is realized by extrusion of polymer composition melt containing polystyrene and 45 to 85 wt % of copolymer prepared by copolymerization of 20-35% styrene and 65-80% butadiene. Extruded material is cooled and drawn into film. EFFECT:, simplified production technology, ensured physiologic harmlessness of films in contact with foods, optimized twist effect and rigidity. 1 tbl
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