Method for formation polymer

(Twice Amended)

• A method for molding a thermoplastic elastomer and/or a synthetic rubber comprising the steps of, injecting a thermoplastic elastomer and/or a synthetic rubber in a molten state each containing a foaming agent and a cross-linking agent through a nozzle into a mold cavity while pressing gas through a pipe provided in the same position as the nozzle into the inside of the thermoplastic elastomer and/or the synthetic rubber to contact them close to the surface of the mold cavity, then exhausting the gas through the pipe to fill the space occupied until then by the gas with the thermoplastic elastomer and/or the synthetic rubber to increase a volume to be occupied by them while maintaining the inside shape of the mold cavity, and obtaining a molded product having an outside shape thereof fit to the inside shape of the mold cavity and the inside thereof made foamed and rubber elasticized.

(Twice Amended)

• A method for molding a polymer comprising the steps of, putting a polymer containing a foaming agent into a mold cavity while contacting the polymer in a molten state close to the surface of the mold cavity, communicating the mold cavity with a shelter to release a part of the polymer to the shelter by foaming pressure and increase a volume to be occupied by the polymer while maintaining the inside shape of the mold cavity, and obtaining a molded product having an outside shape thereof fit to the inside shape of the mold cavity and the inside thereof made foamed.

(Canceled)

(Canceled)

(Amended)

• A method for molding a polymer comprising the steps of, putting a polymer containing a foaming agent into a mold cavity being communicated with a shelter, contacting the polymer in a molten state close to the surface of the mold cavity while releasing a part of the polymer to the communicated shelter to increase a volume to be occupied by the polymer while maintaining the inside shape of the mold cavity, and obtaining a molded product having an outside shape thereof fit to the inside shape of the mold cavity and the inside thereof made foamed.

(Canceled)