A composition comprising at least two trimeric cyclic ketone peroxides: a trimeric cyclic methyl ethyl ketone peroxide (3MEK-cp) of formula (I) and at least one peroxide satisfying formula (II) wherein R1 through R3 are independently selected from alkyl and alkoxyalkyl groups, said groups having 2 to 5 carbon atoms, the total number of carbon plus oxygen atoms of R1+R2+R3 is in the range 7-15, and the molar ratio of 3MEK-cp to the total amount of peroxides satisfying formula (II) being in the range of from 10:90 to 80:20.
一种组合物,包括至少两种三聚环状酮过氧化物:具有式(I)的三聚环状
甲基乙基酮过氧化物(3MEK-cp)和至少一种符合式(II)的过氧化物,其中R1至R3分别选自烷基和烷氧基烷基基团,所述基团具有2至5个碳原子,R1+R2+R3的碳加氧原子的总数在7-15范围内,3MEK-cp与符合式(II)的过氧化物总量的摩尔比在10:90至80:20范围内。