Use of chelating agents to restore the controlled degradation performance of organic peroxides and n-acyloxyamines in the presence of copper(II) ions

Abstract

A process for the thermal degradation of a polymer composition comprising polypropylene or propylene copolymers in the presence of a free radical generator and copper(II) ions, characterized in that the thermal degradation is carried out in the presence of a chelating agent selected from the group consisting of substituted triazoles, substituted salicyloyl hydrazides and substituted salicyloyl amides.

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