Expandable polyolefin having a double peak in DSC

摘要

Particulate expandable polyolefin, comprising blowing agent, containing a) 1 to 99% by weight of a polypropylene A, b) 1 to 99% by weight of a polyethylene as polymer B, which is partly or fully crystalline and is incompatible with polypropylene, and has in the diagram Differential Scanning Calorimetry (DSC) a double peak formed by a low temperature peak with a maximum in the range of 100 to 140C, and high temperature peak with a maximum in the range of 130 to 180 ° C.