THERMOPLASTIC POLYOLEFIN COMPOSITION Russian patent published in 2013 - IPC C08L23/12 C08L23/16 C08L23/04 C08L23/06 C08J3/22 

FIELD: chemistry.

SUBSTANCE: invention relates to a heterophase propylene composition for making articles by injection moulding, as well as a composition for improving strength of polypropylene at low temperatures. The composition contains a polypropylene matrix, an elastomer copolymer containing ethylene links, at least one C₃-C₂₀ α-olefin and optionally an unconjugated diene, high-density polyethylene which is bimodal or multimodal polyethylene and inorganic filler.

EFFECT: disclosed heterophase polypropylene has acceptable impact characteristics at -40°C without loss of hardness.

14 cl, 3 tbl, 14 ex