Patent ID: 10626263

Abstract:
Peroxide masterbatch comprising: —15-55 wt % of one or more organic peroxides, —15-45 wt % of one or more copolymers of at least two different monomers, the first monomer being ethylene or propylene, the second monomer being a vinyl monomer comprising at least four carbon atoms and optionally heteroatoms, —6-70 wt % of at least two filler types—filler type 1 and filler type 2—each having a different BET surface area: (i) filler type 1 being present in the masterbatch in a concentration of 3-30 wt % and having a BET surface area of more than 100 m2/g; (ii) filler type 2 being present in the masterbatch in a concentration of 3-40 wt % and having a BET surface area of 100 m2/g or less; wherein the masterbatch has the form of extrudates.