POLYPROPYLENE COMPOSITION Russian patent published in 2021 - IPC C08L23/12 C08L23/14 C08L23/08 C08F210/06 C08F4/659 

FIELD: chemistry.

SUBSTANCE: present invention relates to a polypropylene composition containing heterophasic polypropylene (HECO) and bimodal metallocene linear low density polyethylene (mLLDPE), to articles obtained from said polypropylene composition, and in addition to the use of (mLLDPE) as a modifier for heterophasic polypropylenes (HECO) to improve impact resistance and optical properties. Described is a polypropylene composition for obtaining various articles, such as films, as well as cast in the form of articles, containing heterophasic polypropylene (HECO), bimodal metallocene linear low density polyethylene (mLLDPE), optionally polypropylene homopolymer with a melt flow rate MFR2 (ISO 1133; 230 °C; 2.16 kg) ranging from 0.5 to 100.0 g / 10 minutes and / or optionally an alpha nucleating agent.

EFFECT: providing a polypropylene composition with an optimized or improved balance of mechanical properties, such as stiffness and impact strength, and optical properties, in particular haze.

13 cl, 1 dwg, 4 tbl, 3 ex