FILLER DISPERSIBILITY IMPROVER, FILLER-CONTAINING RESIN COMPOSITION, AND PRODUCTION METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a filler dispersibility improver excellent in improving reinforcing effects and dispersibility, a filler-containing resin composition, and a production method therefor. SOLUTION: This improver comprises an olefin block copolymer (A) represented by formula (I): PO-f-R (wherein PO is a polyolefin segment comprising repeating units derived from a 2-20C olefin and having an Mw of 2,000 or higher; f is an ether, ester, or amide bond; and R is a functional segment obtained by chain polymerization and having an Mw of 500 or higher). The method for producing the filler-containing resin composition comprises producing PO followed by producing R in the presence of a filler.