Patent ID: 6218010
Filing Date: 2001-04-17
Classification: D01F,Y10T

Abstract:
A fiber comprising an ethylene-propylene copolymer alloy having a substantially single Tg peak, an ethylene content of from about 5 to about 8% by weight of the alloy, said alloy comprising:(a) an ethylene-propylene random copolymer having an ethylene content of from about 0.1 to about 6.0% by weight, and a MFR of from about 0.1 to about 250 g/10 minutes, in an amount of from about 40 to about 90% by weight of the alloy; and(b) an ethylene-propylene bipolymer in an amount of from about 10 to about 60% by weight of the alloy, said bipolymer having an ethylene content less than 40% by weight of the bipolymer,wherein said fiber has a diameter of from about 5 to about 40 microns.