METHOD OF PRODUCTION OF ETHYLENE-BASED POLYMER PARTICLES AND STRETCH-MOLDED ARTICLE OBTAINED FROM THE ETHYLENE-BASED POLYMER PARTICLES

摘要

A method of production of ethylene-based polymer particles includes the steps of: homopolymerizing ethylene or copolymerizing ethylene and a linear or branched alpha-olefin having 3 to 20 carbon atoms in the presence of an olefin polymerization catalyst including: (A) fine particles having an average particle diameter greater than or equal to 1 nm and less than or equal to 300 nm obtained at least by the following two steps: (Step 1) causing contact between a metal halide and an alcohol in a hydrocarbon solvent; (Step 2) causing contact between a component obtained by (Step 1) and an organoaluminum compound and/or an organoaluminumoxy compound; and (B) a transition metal compound represented in General Formula (I) or (II), and (E) an intrinsic viscosity [eta] of the ethylene-based polymer particles, measured in decalin at 135� C., is from 5 to 50 dL/g.