BigPatents India

This invention relates to Polyolefin compositions comprising (percent by weight): (1) 55-75%, of a crystalline propylene homopolymer or copolymer containing up to 15% of ethylene and/or C4-C10 -olefin(s) and having an MFR value of from 15 to 80 g/l0min; and (2) 25-45%, of a copolymer of ethylene with one or more C4-C10  -olefin(s) containing from 20 to 40% of said C4-C10  -olefin(s); said compositions having values of MFR (230°C, 2.16 kg) equal to or higher than 15 g/10 min, a total content of ethylene of 20% or more, a total content of C4-C10  -olefin(s) of 6% or more, a ratio of the total content of ethylene to the total content of C4-C10  -olefin(s) of 2.3 or more, characterized in that a total fraction soluble in xylene at room temperature is higher than 20%, an intrinsic viscosity value of the fraction soluble in xylene at room temperature of 1.7 dl/g or less, and a flexural modulus value of from 600 to less than 770 MPa.