Polymer Compositions and Nonwoven Compositions Prepared Therefrom

A nonwoven composition having at least one elastic layer, wherein the elastic layer comprises a propylene-based polymer composition, and wherein:

• the polymer composition comprises propylene and from about 5 wt % to about 20 wt % ethylene and/or a C4-C12 alpha-olefin;
• the polymer composition has a triad tacticity greater than about 90%, a heat of fusion less than about 75 J/g, and an MFR greater than or equal to about 25 g/10 min (230° C., 2.16 kg);
• the polymer composition is a reactor grade composition comprising a reactor blend of a first polymer and a second polymer;
• the first and second polymers are prepared with the same catalyst system;
• and
• the nonwoven composition has at least one of (a) a 2nd cycle permanent set less than or equal to about 9%;
• (b) 1st cycle retractive force at 50% recovery greater than about 1.6 N;
• and (c) a 2nd cycle retractive force at 50% recovery greater than about 1.5 N.