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US 8,261,392 B2Granted
Sole and method of manufacturing sole
AssigneeMizuno Corporation
InventorsYoshihiro Yabushita, Akihiro Miyauchi, Takeshi Takeshita
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Abstract
A method of manufacturing a sole according to the present invention includes the steps of obtaining a rubber part by previously 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 the polymer mixture, halogenating the rubber part, and bonding the rubber part and thermoplastic resin to each other by molding said thermoplastic resin on said rubber part.
Claims9
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.
4 more elements
Dependencies are inferred from the claim text.