FIELD: biotechnology.
SUBSTANCE: invention relates to a copolymer of propylene. Propylene copolymer (R-PP) contains ethylene in the range of 2.5–11.5 mol %. MFR2 flow rate, (230 °C), measured according to ISO 1133, is 1.0–16.0 g / 10 minutes. Relative content of the I (E) molar fraction of the propylene / ethylene / propylene sequences (PEP) in the sample is 45.0–69.0 %. Content of I (E) is determined using equation (I). Process for the preparation of a propylene copolymer and an undirected film are also described. 
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EFFECT: technical result is the preparation of a copolymer of propylene having high impact and optical properties.
15 cl, 4 ex, 3 tbl
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