Polyolefin compositions suitable for high resilience foams

A polyolefin composition, comprising:

• a) ≥65.0 wt. % and ≤94.0 wt. %, of an ethylene alpha-olefin co-polymer (A), with regard to the total weight of the polyolefin composition, wherein the ethylene alpha-olefin co-polymer has at least one of:
• i. a peak melting temperature of ≥35° C. and ≤90° C., when determined in accordance with ASTM D3418-15, using Differential Scanning calorimetry (DSC) with a first heating and cooling cycle at a temperature between 23° C. to 200° C. and at a heating and a cooling rate of 10° C./min for a 10 mg film sample, using a nitrogen purge gas at flow rate of 50±5 mL/min, followed by a second heating cycle identical to the first heating cycle;
• ii. ≥5.0 wt. % and ≤45.0 wt. %, of polymeric units derived from one or more alpha-olefins having 3-12 carbon atoms, with regard to the total weight of the ethylene alpha-olefin co-polymer;
• iii. a melt flow rate (MFR) of ≥0.10 g/10 min and ≤30.0 g/10 min, when determined at 190° C. at 2.16 kg load in accordance with ASTM D1238 (2013);
• and
• iv. a density of ≥850 kg/m3 and ≤900 kg/m3, when determined in accordance with ASTM D792 (2008);
• and
• b) ≥6.0 wt. % and ≤35.0 wt. %, of an ethylene polymer (B), with regard to the total weight of the polyolefin composition, wherein the ethylene polymer (B) has at least one of:
• i. a density of ≥940 kg/m3 and ≤980 kg/m3, when determined in accordance with ASTM D1505-10 (2018) at 23° C.;
• and
• ii. a melt flow rate (MFR) of ≥0.03 g/10 min and ≤40.0 g/10 min, when determined at 190° C. at 2.16 kg load in accordance with ASTM D1238 (2013).