USE OF AROMATIC aliphatic KETONES as initiators for photopolymerization of unsaturated RELATIONS AND TO PHOTO CHEMICAL Cross-linking of polyolefins, photopolymerizable SYSTEM INCLUDING SUCH KETONES AND METHOD FOR photopolymerization of unsaturated RELATIONS

摘要

aromatic aliphatic ketones of the formula i, ii, iii or ivwherein n is 1 or 2, or a arylrest, r and r2 is aliphatic monohydric, cycloaliphatische or araliphatische residue, r3 is a direct link or a z