Patent ID: 8389636

Claim:
A polystyrene blend, comprising: a first polystyrene containing composition having a first melt flow index; and a second polystyrene containing composition having a second melt flow index; wherein the second melt flow index is at least 2 dg/min higher that the first melt flow index; wherein the second polystyrene containing composition comprises 0.1 to 40 wt. % of the total weight of the polystyrene blend; wherein the first polystyrene containing composition has a first physical property value and the second polystyrene containing composition has a second physical property value and the polystyrene blend has an expected physical property value; wherein the expected physical property value is a weighted average of the first physical property value and the second physical property value based on the amount of the first polystyrene containing composition and the second polystyrene containing composition in the polystyrene blend; and wherein the polystyrene blend has an observed physical property value greater than 3% above the expected physical property value.