PROPYLENE-BASED RESIN COMPOSITION FOR FLEXIBLE FOAM AND ITS APPLICATION

摘要

PROBLEM TO BE SOLVED: To provide a propylene-based resin composition for a flexible foam from which a polypropylene-based flexible foam excellent in flexibility and heat resistance is obtained. SOLUTION: The propylene-based resin composition for a flexible foam comprises: 50-90 pts.wt. of a propylene-based random block copolymer (A) obtained by polymerization in the presence of a metallocene catalyst, having a melt flow rate in the range of 0.1-10 g/10 min and a melting point in the range of 100-155°C, and consisting of 90-30 wt.% of a fraction insoluble in room-temperature n-decane (Dinsol) and 10-70 wt.% of a fraction soluble in room-temperature n-decane (Dsol); and 50-10 pts.wt. of modified polypropylene (B) having a melt tension in the range of 4-30 g. COPYRIGHT: (C)2009,JPO&INPIT