FIELD: chemistry.
SUBSTANCE: invention relates to a thermoplastic film having a base film containing an extensible polyolefin material having one or more layers; and a plurality of extruded fibrous elements; wherein the extruded fibrous elements are situated on at least one surface of the base film; and the extruded fibres form one or more protrusions relative to the plane of the base film; and on the site of the fibre elements on the base film between a zone of clean base film material and a zone of clean fibre material there is a zone of a mixture of materials containing base film material and fibre material, such that part of each of the fibrous elements forms an inter-phase mixture with the base film, and the average thickness of the base film is less than the average thickness of the protrusion.
EFFECT: improved bonding strength between the base film and reinforcing elements.
26 cl, 6 dwg
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