FIELD: chemistry.
SUBSTANCE: film is made from polymer mixture, which contains (wt %): 50-90% composition of the ethylene polymer and 10-50% polymer component on ethylene basis, having a density in the range from 0.9 to 0.930 g/ml and molten flow-rate till 4 g/10 min. Composition of the ethylene polymer contains a recurring unit, obtained from an ester, selected from (1) ethylene-unsaturated organic monomer in the form of esters unsaturated C3-C20 monobasic carboxylic acids and C1-C24 univalent aliphatic or alicyclic alcohols, (2) vinyl esters saturated C2-C18 carboxylic acids, where the content of esters is in the range from 2.5-8 wt %. Composition of the ethylene polymer has a density in the range from 0.920 to 0.94 g/ml. Stretchable packing film has a relation between the value of tear resistance longitudinally and the vale of tear resistance transversely, which exceeds 0.3 and the value of ultimate tensile strength lengthwise 30% in the range from 6.5 to 15 N.
EFFECT: effective application in the capacity of stretching adhesive covers in various operations in linking packing and wrapping.
6 cl, 3 tbl, 17 ex
