EXPANDABLE RESIN PARTICLES OF STYRENE-MODIFIED STRAIGHT-CHAIN AND LOW-DENSITY POLYETHYLENE, PROCESS THE PRODUCTION THEREOF, PRE-EXPANDED PARTICLES, AND FOAMS

摘要

ACCORDING TO THE PRESENT INVENTION, THERE IS PROVIDED EXPANDABLE BEADS OF A STYRENE-MODIFIED LINEAR LOW-DENSITY POLYETHYLENE-BASED RESIN COMPRISING A VOLATILE BLOWING AGENT AND A BASE RESIN, THE BASE RESIN CONTAINING MORE THAN 50 TO 1000 PARTS BY WEIGHT OF A POLYSTYRENE-BASED RESIN COMPONENT RELATIVE TO 100 PARTS BY WEIGHT OF A NON-CROSSLINKED LINEAR LOW-DENSITY POLYETHYLENE-BASED RESIN COMPONENT, WHEREIN THE BASE RESIN CONTAINS LESS THAN 2 WT% OF A GEL COMPONENT COMPRISING A GRAFT POLYMER OF THE POLYSTYRENE-BASED RESIN COMPONENT AND THE LOW-DENSITY POLYETHYLENE-BASED RESIN COMPONENT.