POLYPROPYLENE COMPOSITION Russian patent published in 2021 - IPC C08F210/06 C08F210/02 C08F210/08 C08L23/14 C08J5/18 

FIELD: polymers.

SUBSTANCE: invention can be used for manufacturing films and packaging systems. The polypropylene composition for manufacturing products comprises a propylene terpolymer and an α-nucleating agent. The propylene terpolymer includes from 1.1 to 1.70 wt.% of comonomer units produced from ethylene and from 5.5 to 8.0 wt.% of comonomer units produced from a C₄-C₁₀ α-olefin. The polypropylene composition therein has a double melting peak in the range from 120 to 155°C when conducting differential scanning calorimetry. Also proposed are a method for producing the polypropylene composition, applications thereof, and a product.

EFFECT: invention improves the balance of mechanical properties, such as stiffness and impact strength, and optical properties.

14 cl, 4 tbl