POLYETHYLENE HAVING EXCELLENT SEALING PROPERTY AT LOW TEMPERATURE, AND METHOD FOR PREPARING THE SAME

摘要

PURPOSE: Polyethylene with low temperature sealing ability is provided to have excellent moldability and processability, and to have excellent low temperature sealing strength and sealing ability because of low heat sealing initial temperature. CONSTITUTION: Polyethylene has density of 0.91-0.94 g/cm^3, the index of broad orthogonal comonomer distribution is 0-3, SCB distribution slope is remarkably changed in ±5% region of a center, has remarkably higher SCB distribution slop than the SCB distribution slope of low molecular weight region, The molecular distribution(weight average molecular weight / number average molecular weight) is 3-5, and the heat sealing initial temperature is 90-94 °C(1 kg, 0.5 sec), and low temperature sealing strength is 0.03 kgf(1 kg, 0.5 sec, 100°C) or more.