| 摘要 |
The invention relates to a process for the production of high density polyethylene having a density in the range between 945 and 965 kg/m3 by polymerisation of ethylene in the presence of a silylchromate based catalyst and a reducing agent. The reducing agent comprises the reaction mixture of an alkyl aluminum compound and a nitrogen containing compound, wherein the alkyl aluminum compound is an organo aluminum compound having the formula AlR3, in which R is a hydrocarbon radical containing 1-10 carbon atom and wherein the nitrogen containing compound is a cycloalkylamine having the general formula R-NH2, wherein R is cycloalkyl radical having from 3 to 8 carbon atoms. |
