| 摘要 |
<p>Compatible blends of polypropylene and poly(1-butene) are disclosed. The blend preferably contains from about 55 to about 90 percent by weight of crystalline polypropylene, from about 10 to about 45 percent by weight of poly(1-butene) dispersed in a matrix of the polypropylene, and an optional compatibilization enhancing amount of an ethylene/α-olefin plastomer having a weight average molecular weight between about 5,000 to about 50,000, a density from about 0.865 to about 0.90 g/cm3, and a melt index of at least about 50 dg/min. The blend is useful in the formation of melt spun and melt blown fibers. Also disclosed are spun bonded-melt blown-spun bonded fabrics made from the blends.</p> |
