Patent ID: 7868095
Filing Date: 2011-01-11
Classification: C08F

Abstract:
1. 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 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.