POLYPROPYLENE RESIN COMPOSITION AND EXTRUDED SHEET MADE THEREFROM

摘要

PURPOSE:To obtain the title composition which can give a lightweight molding of excellent rigidity by mixing a specified propylene polymer with an olefin elastomer and a filler. CONSTITUTION:The composition comprises 30-99.9wt.% propylene polymer having an MFR in the range of 0.1-500g/10min as measured at 230 deg.C under a load of 2.16kg, a stereoregularity index in the range of 0.970-0.995 as determined according to a specified formula, a stereo-regularity index in the range of 0.0020-0.0050 as determined according to a specified formula and a degree of crystallinity of 60% or above as measured on boiling-n-heptane insolubles, 1-30wt.% olefin elastomer comprising at least two kinds of structural units derived from monomers selected form 2-20 C olefins and 0.1-30wt.% filler.