Masterbatch

Abstract

The purpose of the present invention is to provide: a masterbatch in which cellulose fibers are well dispersed in a rubber and the adhesion strength at the interface between the fibers and the rubber can be increased; and a simple method for producing the masterbatch. The present invention provides a masterbatch containing a polyolefin resin, cellulose fibers, and a silane coupling agent. The mass ratio of the polyolefin resin to the cellulose fibers to the silane coupling agent is preferably in a range of 25-74:20-55:2-55. The silane coupling agent preferably has a polysulfide structure.

Dependencies are inferred from the claim text.