FIELD: polymer materials.
SUBSTANCE: co-extruded multilayer films based on an ethylene copolymer and α-olefins, including barrier films and non-barrier films, as well as industrial products that include films, such as flexible bags and containers for fluid materials. Films and products including films have increased resistance to cracking in bending and impact strength. Films and products that include films have good barrier properties because the barrier films include a core layer of an ethylene-vinyl alcohol (EVOH) copolymer having a high ethylene content. The low amount of EVOH copolymer in the entire film, necessary to achieve flex crack resistance, impact strength, and good barrier properties, further allows processing of such films and industrial products.
EFFECT: improved resistance to cracking in bending, resistance to impact loads, and good barrier properties, as well as recyclability.
39 cl, 14 dwg
