| abstract |
The present invention relates to (a) a first elastomeric polymer having a high molecular weight of 50 to 90 weight percent, (b) 5 to 50 weight percent, preferably 5 to 40 weight percent, more preferably 10 to 35 weight percent a second elastomeric polymer coupled with a low molecular weight in percent, wherein the amounts of components (a) and (b) relate to the polymer blend based on the total weight of the polymer blend. |