Patent ID: 6448194
Filing Date: 2002-09-10
Classification: B32B,D04H,Y10T

Abstract:
A nonwoven fabric comprising fibrous material in the form of continuous filaments or staple fibers of a size less than 15 dtex/filament randomly arranged and bonded to one another at discrete locations, said fibrous material being formed of a dispersed 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 70 percent by weight of the fibrous material and comprising linear low density polyethylene having a melt index of greater than 10 g/10 min. and a density of less than or about 0.945 g/cc and said at least one higher-melting noncontinuous phase comprising at least one copolymer or terpolymer of propylene having a melt flow rate of greater than 20 g/10 min., wherein a ratio of the melt index of said polyethylene to the melt flow rate of said copolymer or terpolymer of propylene ranges from about 0.5 to about 1.57.