Radical polymerization of ethylene initiated by two organic peroxides with high productivity

摘要

The present invention is a process for producing a polyethylene or ethylene copolymer comprising: a first peroxide polymerization initiator selected from diperketal peroxide compounds of the following formula: [wherein R1, R2, R3, R6, R7 and R8 groups consist of substituted or unsubstituted linear, branched or cyclic C1-C10 alkyl groups] —second of diperketal peroxides of formula (I) other than the first initiator The process comprising the step of radical polymerization or copolymerization of ethylene in the presence of an initiator.