Polyethylene composition for filaments or fibers

A polyethylene composition comprising:

• A) from 65% to 97% by weight of a copolymer of ethylene with one or more comonomers selected from C3-C10 alpha-olefins, wherein the ethylene copolymer has:
• 1) a density of 0.925 g/cm3 or higher, measured according to ISO 1183-1:2012 at 23° C.;
• and
• 2) a MI2 value of 0.5 g/10 min. or greater, where MI2 is the Melt Index measured according to ISO 1133-2:2011 at 190° C. with a load of 2.16 kg;
• and
• B) from 3% to 35% by weight of a polyolefin composition comprising:
• BI) from 5% to 35% by weight of a propylene homopolymer containing 10.0% by weight or less of a fraction soluble in xylene at 25° C. (XSI), referred to the weight of BI);
• BII) from 20% to 50% by weight of an ethylene homopolymer or a copolymer of ethylene with up to 5% by weight of one or more comonomers selected from C3-C10 alpha-olefins, both homopolymer and copolymer containing 5% by weight or less of a fraction soluble in xylene at 25° C. (XSII), both the amount of comonomers and the -amount of the fraction XSII being referred to the weight of BII);
• and
• BIII) from 30% to 60% by weight of a terpolymer of ethylene, propylene, and butene-1 containing from 45% to 65% by weight of ethylene units, and from 15% to 38% by weight of 1-butene units, and containing from 30% to 85% by weight of a fraction soluble in xylene at 25° C. (XSIII), the amounts of ethylene units and butene-1 units and of the fraction XSIII being referred to the weight of BIII);
• the amounts of A) and B) being referred to the total weight of A)+B) and the amounts of BI), BII) and BIII) being referred to the total weight of BI)+BII) BIII).