RESIN COMPOSITION FOR EXPANSION-MELDED FORM, EXPANSION- MOLDED FORM AND METHOD FOR PRODUCING THE MOLDED FORM

摘要

PROBLEM TO BE SOLVED: To provide a resin composition for an expansion-molded form that is suitable, in particular, as a microorganism-immobilized support for fluidized bed or support for combined septic tank used in a sewage treatment plant for treating sewage by making use of microorganisms. SOLUTION: This resin composition for expansion-molded form is characterized by comprising a polypropylene-based resin with a melt tension at 230 deg.C of >=7 gf and another polypropylene-based resin with a melt tension at 230 deg.C of <7 gf.