ACID-MODIFIED POLYPROPYLENE RESIN, METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION USING SAME

摘要

Disclosed is an acid-modified polypropylene resin usable for an adhesive which is capable of bonding a polyolefin resin and a polar resin with sufficient bonding strength. Also disclosed are a method for producing such an acid-modified polypropylene resin and a resin composition using such an acid-modified polypropylene resin. Specifically disclosed is an acid-modified polypropylene resin obtained by grafting an organic acid component to a polypropylene resin which is an isotactic polypropylene resin. The grafted amount X (wt%) of the organic acid component in the acid-modified polypropylene resin is within the range from 1.0 wt% to 20.0 wt%, and the melt flow rate Y (g/10 min) of the acid-modified polypropylene resin satisfies Y = 18.5 exp (0.82X). Also specifically disclosed is a method for producing such an acid-modified polypropylene resin, a resin composition using such an acid-modified polypropylene resin, and a multilayer body.