LOW PARTICLE SIZE POLYETHYLENE, ITS CHLORINATED POLYETHYLENE AND PVC COMPOSITION CONTAINING THE SAME

摘要

The present invention relates to polyethylene, chlorinated polyethylene thereof, and a PVC composition containing the same, and more specifically, to polyethylene, which has an average particle size of 30-170 m, a melt index (5.0 kg) of 0.001-100, a weight average molecular weight of 50,000-300,000, a molecular weight distribution (MWD) of 20 or less, a melting point of 125-140C, and a density of 0.94 g/cm^3 or more and is used for preparing chlorinated polyethylene, to chlorinated polyethylene thereof, and to a PVC composition containing the same. According to the present invention, there is an effect of providing polyethylene having excellent chlorine distribution uniformity in polyethylene during chlorination, chlorinated polyethylene having excellent compatibility with PVC, excellent impact reinforcement performance, and remarkably reduced fusion time, and a PVC composition having excellent impact strength, processability, and productivity.