Patent ID: 8017204

Claim:
A composition for manufacturing injection molded articles having a wall thickness of between 500 μm and 2.0 mm, the composition comprising a blend of: (A) from 2 to 15% by weight of a propylene-ethylene copolymer having substantially isotactic propylene sequences, the propylene-ethylene copolymer comprising: (1) at least 75% by weight units derived from propylene and from about 11 to 18% by weight units derived from ethylene; (2) the propylene-ethylene copolymer having a melt flow rate from 4 to 30 grams/10 minutes; (B) from 85 to about 98% by weight of a random polypropylene copolymer having an ethylene content of from 2.0-5.0 percent by weight, a melt flow rate of from 25 to 130 grams/10 minutes, wherein, the melt flow rate of the blend is from 20 to 125 grams/10 minutes; and (C) from 500 to 2500 ppm by weight of a nucleator/clarifier additive based on the weight of the random polypropylene copolymer (B), wherein, the melt flow rate of the composition is from 20 to 125 grams/10 minutes and wherein a 1.6 mm thick section of the injection molded article exhibits: (1) room temperature (23° C.) Dart Impact strength by ISO 6603 of at least 7.5 J/mm; (2) tensile-yield strength by ISO 527 of between 20 and 30 MPa; (3) 0° Dart Impact Strength by ISO 6603 of at least 0.43 to 0.75 J/mm; and (4) a value for haze of less than 50% by ASTM 1003.