Patent ID: 7868095

Claim:
A process comprising extruding a blend of linear polyethylene and amorphous EP(D)M copolymers or terpolymers, optionally mixed with semi-crystalline EP(D)M, in the presence of at least one hydroperoxide and optionally in the presence of at least one polyfunctional vinyl monomer, wherein the process is carried out at a temperature ranging from 75° C. to 260° C. and at a shear value higher than 100 sec −1 , and the processing conditions, including the temperature and shear value, are chosen such that the hydroperoxide does not undergo thermal decomposition, the at least one hydroperoxide has a halving time ten times higher than the process time, and the extruded blend of linear polyethylene and amorphous EP(D)M copolymers or terpolymers is not crosslinked.