Process for the degradation of (co)polymers of propylene.

摘要

A process for the degradation of (co)polymers using as degradants chlorinated 1,1,2,2-tetramethyl-1, 2-diphenyl ethane (chlorinated bicumyl) and/or derivatives thereof carrying alkyl substituents in the aromatic nuclei. The present degradants generally are mixtures of bicumyls having varying degrees of chlorination. They may be employed in combination with usual antioxidants and/or UV-stabilizers and display higher activity than bicumyl itself.