| abstract |
The present invention relates to a polymer blend comprising: (a) 50 to 90% by weight of a first elastomeric polymer having a high molecular weight, (b) 5 to 50% by weight, preferably 5 to 40% by weight, more Preferably, 10 to 35% by weight of the second elastomeric polymer having a low molecular weight and being coupled, wherein the amounts of components (a) and (b) are based on the total weight of the polymer blend. |