MODIFIED POLYPROPYLENE RESIN, FOAM MADE THEREOF AND PROCESSES FOR THE PREPARATION OF THEM

摘要

A MODIFIED POLYPROPYLENE RESIN OBTAINED BY MELT- KNEADING A POLYPROLENE RESIN, AN ISOPRENE MONOMER AND A RADICAL POLYMERIZATION INITIATOR, WHICH HAS A HIGH MELT VISCOSITY AND A HIGH MELT TENSILE STRENGH AND IS HARD TO CAUSE DRAW-DOWN, AND WHICH PROVIDES, BY FOAMING THEREOF, FOAMED ARTICLES HAVING LOW DENSITY, HIGH CLOSED CELL CONTENT, BEAUTIFUL APPEARANCE AND EXCELLENT HEAT RESISTANCE.