| 摘要 |
The present invention relates to a polymer composition, comprising (i) a polypropylene-based matrix which comprises a polypropylene random copolymer prepared by copolymerization of propylene with an olefin comonomer, wherein the amount of olefin comonomer units is within the range of 0.2 wt% to 5 wt%, based on the weight of the polypropylene-based matrix, and (ii) an elastomeric copolymer of propylene and at least one olefin comonomer, the polymer composition having a storage modulus G' at a loss modulus G"=5 kPa of G'(5 kPa) < (3100) Pa, measured at 220°C, and the tensile modulus according to ISO 527-2/1 at 1 mm/min and 23°C is at least 1350 MPa. The invention also relates to a method for preparing such composition. |
