SHOCK-RESISTANT POLYOLEFIN COMPOSITIONS Russian patent published in 2007 - IPC C08L23/10 C08L23/16 C08F2/00 

FIELD: polymer materials.

SUBSTANCE: polyolefin compositions comprise: 55-90% crystalline propylene homo- or copolymer containing up to 15% ethylene and/or C₄-C₁₀-α-olefin(s) and having MFR value (230°C, 2.16 kg) equal to or higher than 25 g/10 min; and 10-45% copolymer of ethylene and one or several C₄-C₁₀-α-olefins. Such compositions are characterized by MFR values equal to or higher than 25 g/10 min, total content of ethylene equal to or higher than 20%, total content of C₄-C₁₀-α-olefin(s) equal to or higher than 4.5%, ratio of total ethylene content to total content of C₄-C₁₀-α-olefin(s) equal to or higher than 2.3, content of summary fraction soluble in xylene at room temperature below 18%, and intrinsic viscosity of above fraction equal to or lower than 1.7 dL/g. Polymer compositions can be used to manufacture products via injection molding, including plates, dishes, and toys, and, in particular, articles contacting food products.

EFFECT: improved consumer's properties of material.

9 cl, 2 tbl