| abstract |
Extruded linear polypropylene having a) a MFR2, measured according to ISO 1133 under a load of 2.16 kg at 230ºC, from 0.01 to 1.00 g / 10 min and b) a foamability index (FN) of more of 0.25 N, the foamability index being defined by the integral, ** Formula ** in which l is the elongation ratio and F is the force in cN, recorded as a function of the elongation ratio λ, and c) a Branching index g 'from 0.95 to 1.00. |