Polyolefin compositions obtained from recycled polyolefins

A multilayer film comprising:

• I. at least one core layer comprising
• i. a polypropylene composition comprising
• A) from 55 wt. % to 85 wt. % of a recycled a recycled polypropylene (r-PP), having the following features:
• A.1. a propylene derived units content, measured with 13C-NMR, higher than 60 wt. %;
• A.2. an ethylene derived units content, measured with 13C-NMR, between 1.5 wt. % and 20.3 wt. %;
• A.3. a Melt Flow Rate (ISO 1133 230° C./2.16 kg) ranging from 0.2 to 20 g/10 min;
• A.4. a fraction soluble in xylene at 25° C., determined according to ISO 16152:2005, lower than 15.0 wt. %;
• A.5. a flexural modulus, measured according to ISO 527-2, ranging from 820 N/mm2 to 1720 N/mm2;
• A.6. a Charpy impact test at 23° C., determined according to ISO 179-1eA, and ISO 1873-2, ranging from 2.2 KJ/m2 to 13.0 KJ/m2;
• A.7. an elongation at break, measured according to ISO 527, ranging from 50% to 200%;
• and
• A.8. the FTIR spectrum of film showing at least two peaks at different wavenumbers (cm−1) selected from the group consisting of:
• 3303±1 cm−1;
• 1726±1 cm−1;
• 1642±1 cm−1;
• 1600±1 cm−1;
• 1550±1 cm−1;
• 906±1 cm−1;
• 839±1 cm−1, 818±1 cm−1;
• 748±1 cm−1;
• 695+1 cm−1;
• and
• B) from 15 wt. % to 45 wt. % of a virgin polypropylene composition comprising
• (b1) from 75 wt. % to 95 wt. % of a propylene homopolymer, having:
• (b1.1) a fraction soluble in xylene at 25° C. lower than 6.0 wt. %;
• and
• (b1.2) a Melt Flow Rate (ISO 1133 230° C./5.0 kg) ranging from 0.1 to 6.0 g/10 min;
• and
• (b2) from 5 wt. % to 25 wt. % of a copolymer of propylene and ethylene, having:
• (b2.1) units derived from ethylene, measured according to 13C-NMR, in an amount ranging from 25.0 wt. % to 68.0 wt. %;
• wherein the polypropylene composition (B), having the following features:
• B.1. a Melt Flow Rate (ISO 1133 230° C./5.0 kg) ranging from 0.4 to 5.0 g/10 min;
• B.2. an amount of fraction soluble in xylene at 25° C. ranging from 7.0 wt. % to 18.0 wt. %;
• B.3. an intrinsic viscosity fraction soluble in xylene at 25° C., measured in tetrahydronaphthalene at 135° C., ranging from 1.2 to 7.5 dl/g;
• and
• B.4. a total content of ethylene, measured according to 13C-NMR, ranging from 4.0 wt. % to 10.0 wt. %;
• wherein, in the polypropylene composition (i), the sum of b1) and b2), being referred to the total weight of b1) and b2), is 100, and the sum of the amounts of (A) and (B), being referred to the total weight of (A) and (B), is 100.