FIELD: medical equipment.
SUBSTANCE: invention relates to the field of multilayer noise-insulating polymer films intended for use in a variety of applications, such as the formation of stoma bags, urine/ colostomy bags, bags for medical waste, etc. Multilayer film of the invention comprises at least one barrier layer, to which at least one noise dampening layer adjoins, containing noise dampening polymers. Noise dampening layer contains 3-97 wt. % of a noise insulating polymer, comprising a hydrogenated styrene block copolymer and an nonhydrogenated styrene block copolymer, and 97-3 wt. % of a copolymer of ethylene and an ester. Said noise dampening layer has a delta tangent of at least 0.10 at a temperature of about -25°C to 40°C, measured according to ASTM D-4065, also, said film has a tensile strength of about 150-400 kg / m2, measured according to ASTM standard 882-12.
EFFECT: thus, the proposed film provides improved sound absorption, high tensile strength, effective barrier properties with respect to gases, odors and liquids.
18 cl, 1 dwg, 14 tbl
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