Patent ID: 9062169
Filing Date: 2015-06-23
Classification: C08J,D01D,D01F

Abstract:
1. A process for producing a slit film tape comprising: combining (i) a propylene elastomer comprising about 70 wt % to about 95 wt % propylene and about 5 wt % to about 30 wt % alpha-olefin comonomer based upon total weight of the propylene elastomer, wherein the propylene elastomer has a melt flow rate of about 1 to about 35 dg/min, a peak melting point of less than about 115° C., an mm triad tacticity of at least about 70%, and a narrow composition distribution; (ii) a polypropylene comprising about 10 to about 100 mol % propylene, wherein the polypropylene has a melt flow rate of about 2 to about 35 dg/min and a peak melting point of at least about 130° C.; and (iii) a filler; forming the combination into a film; slitting the film into tapes: wherein the forming is performed in an extruder.