Patent ID: 6417122
Filing Date: 2002-07-09
Classification: A61F,B32B,D01F,D04H,Y10T

Abstract:
A multicomponent fiber comprising at least two polymer components arranged in structured domains, comprising:a first polymer component domain comprising a multipolymer blend of at least two different polyolefin polymers, said polymers being present as a lower-melting dominant continuous phase and at least one higher-melting noncontinuous phase dispersed therein, said lower-melting continuous phase forming at least 50 percent by weight of the polymer blend and comprising a polyethylene polymer and said at least one higher-melting noncontinuous phase comprising a polypropylene; and a second polymer component domain comprising a multipolymer blend of at least two different polyolefin polymers, said polymers being present as a higher-melting dominant continuous phase and at least one lower-melting noncontinuous phase dispersed therein, said higher-melting continuous phase comprising a propylene polymer and said at least one lower-melting noncontinuous phase comprising a polyethylene polymer.