Patent ID: 8261392

Claim:
A method of manufacturing a sole comprising a rubber part and a thermoplastic resin base, the method comprising the steps of: molding a rubber part by crosslinking a polymer mixture containing 50 to 100 mass % of a diene-based polymer and 0 to 40 mass % of an acrylonitrile component in a polymer component of said polymer mixture, said molded rubber part comprising a plurality of surfaces; using an applicator to apply a halogenating agent such that only the surfaces of said rubber part that will be bonded to the thermoplastic resin base receive the halogenating agent; and bonding said rubber part and the thermoplastic resin base to each other by: placing said rubber part in an injection mold such that there are substantially no gaps between a surface of the rubber part that will not be bonded to thermoplastic resin and the injection mold; and injection molding said thermoplastic resin on said surfaces of said rubber part that received the halogenating agent.