Patent ID: 7319122

Claim:
A fiber comprising: A blended polypropylene composition, comprising: 70% to 90% by weight of a first propylene polymer component having a weight average molecular weight of less than 180,000 and a melt flow rate of from about 30 g/10 min to about 400 g/10 min measured according to ASTM D-1238, condition 230/2.16; and 30% to 10% by weight of a second propylene polymer component having a weight average molecular weight of more than 180,000 and a melt flow rate of from about 0.1 g/10 min to about 30 g/10 min measured according to ASTM D-1238, condition 230/2.16, wherein the blended polypropylene composition has a melt flow rate of greater than 10 g/10 min measured according to ASTM D-1238, condition 230/2.16; and wherein the fibers have an Elongation value greater than 200 percent when spun at a speed of 1,500 m/min or more and at an output rate of 0.6 gram/hole/min under normal cooling conditions.