LOW-POLLUTION BLOW-MOLDABLE RESIN COMPOSITION

摘要

PURPOSE:To make it possible to provide a low-pollution blow-molding good in falling ball impact resistance and pressure resistance with good high-speed moldability, by mixing high-density polyethylene with calcium carbonate and wollastonite at a specified mixing ratio. CONSTITUTION:This low-pollution blow-moldable resin composition contains 50-70wt% high-density polyethylene and 50-30wt% total of calcium carbonate and wollastonite at a ratio (by weight) of calcium carbonate to wollastonite of 30/1-2/1. Said high-density polyethylene preferably has a melt flow index of 0.05-10g/10min. Said calcium carbonate preferably has an average particle diameter <=10mum and said wollastonite preferably has an average particle diameter <=20mum.