method of producing ethylene-based polymer particles and stretched molded article obtained from ethylene-based polymer particles

摘要

method of producing ethylene-based polymer particles and molded-stretched article obtained from ethylene-based polymer particles. An ethylene-based polymer particle production method includes the steps of: - ethylene homopolymerization or ethylene copolymerization and a linear or branched 244 -olefin having 3 to 20 carbon atoms in the presence of a polymerization catalyst (a) fine particles having an average particle diameter greater than or equal to 1 nm and less than or equal to 300 nm obtained by at least the following two steps: (step 1) producing the contact between a metal halide and an alcohol in a hydrocarbon solvent; (step 2) producing contact between a component obtained by (step 1) and an organoaluminium compound and / or an organoaluminoxy compound; and (b) a transition metal compound represented by the general formula (i) or (ii), and (e) an intrinsic viscosity [sym] of the ethylene-based polymer particles measured in decalin at 135 198 ° C. c is from 5 to 50 dl / g.