Solid anhydrous composition in powder form comprising at least one organic peroxide, at least one phlegmatizing agent and at least one binder and corresponding preparation process

摘要

Solid anhydrous composition in powder form comprising at least one organic peroxide, at least one phlegmatizing agent and at least one binder and corresponding preparation process The present invention relates to a composition comprising at least one solid organic peroxide, at least one solid phlegmatizing agent, preferably having a melting point greater than or equal to 40 ° C, and at least one solid binder having an enthalpy of fusion greater than or equal. at 125 kJ / kg. The invention also relates to the use of the composition as defined above as a polymerization initiator for the manufacture of acrylic resins and polyester resins, preferably acrylic resins or as a polymer modifier. The present invention also relates to a process for preparing such a composition. Reference: no figure