Patent ID: 8716400

Claim:
A formulated composition comprising: a) polypropylene; b) a compatibilizer; and, c) an elastomer wherein the composition exhibits an Izod strength in kJ/m 2 as measured by ASTM D256 or ISO180 at 0° C. or 23° C. that is at least 10% higher than that of the composition without (b); and exhibits a flexural modulus that is less than 10% reduced as compared to that of the composition without (b); and, wherein the compatibilizer comprises a block composite comprising diblock copolymers having isotactic polypropylene blocks and ethylene-propylene blocks wherein the block composite has an Mw/Mn of 1.7 to 3.5; and, wherein the compatibilizer is present in an amount of 0.5 wt % to 20 wt % and, wherein the composition has an average domain size of less than 300 nm.