peroxide master batch, process for preparing a peroxide master batch, process for crosslinking an elastomer, and use of the peroxide master batch

摘要

It is a master batch of peroxide comprising: - 15 to 55% by weight of one or more organic peroxides, - 15 to 45% by weight of one or more copolymers of at least two different monomers, the first monomer being is ethylene or propylene, the second monomer is a vinyl monomer comprising at least four carbon atoms and optionally heteroatoms, - 6 to 70% by weight of at least two charge types? type 1 and type 2 cargo - each having a different bet surface area: (i) type 1 cargo which is present in the master batch at a concentration of 3 to 30% by weight and which has a surface area of concrete of more than 100 m2 / g; (ii) type 2 filler which is present in the master batch at a concentration of 3 to 40% by weight and which has a concrete surface area of 100 m2 / g or less; where the master batch is extruded.