| 摘要 |
<p>An injection molding or extrusion polypropylene composition having improved impact strength and improved weld line properties, wherein the polypropylene composition comprises a blend composition of an isotactic polypropylene homopolymer having a number average molecular weight as measured by GPC of at least 15,000, 5 to 15 parts by weight of a zinc neutralized sulfonated EPDM terpolymer per 100 parts by weight of the isotactic polypropylene homopolymer, and 5 to 15 parts by weight of a high molecular weight polypropylene per 100 parts of the isotactic polypropylene.</p> |
