PROPYLENE POLYMER COMPOSITIONS Russian patent published in 2015 - IPC C08L23/12 C08L23/16 C08F297/08 

FIELD: chemistry.

SUBSTANCE: disclosed is a propylene polymer composition, which contains (wt %): A) 68-80% propylene homopolymer, having polydispersity index (PI) of 4.7-10 and melt flow rate MFR L (melt flow rate according to ISO 1133, condition L, i.e. 230°C and load of 2.16 kg) in the range of 10 to 30 g/10 min; B) 20-32% propylene copolymer containing 40.1-42.% of the latter, including links, ethylene derivatives; wherein the composition has characteristic viscosity of a fraction which is soluble in xylene at 25°C, in the range of 3-6 dl/g and MFR L of 4-12 g/10 min.

EFFECT: propylene polymer composition is particularly suitable for articles made by pressure casting, having high hardness and improved impact properties at room and low temperatures.

2 tbl, 7 cl