FIELD: chemistry.
SUBSTANCE: polypropylene has a melt flow rate MFR2 (230°C) from 30 to 300 g/10 min, the complex viscosity ratio eta*(0.05 rad/s)/eta*(300 rad/s) at 200°C from 20.0 to 60.0, and a content of 2.1 erythro-dega defects, equal to or less than 0.4 mole. %. Herewith polypropylene is α-nucleated and contains three fractions, differing from each other in the melt flow rate.
EFFECT: polypropylene of the invention has both high rigidity and high fluidity.
16 cl, 6 tbl
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