Patent ID: 7892465

Claim:
A method for forming a hollow molding having a thin film on an inner surface of said hollow molding, comprising: injection-molding a pair of semi-hollow bodies by using a stationary mold and a movable mold made movable with respect to the stationary mold; opening the molds such that one of the pair of semi-hollow bodies is left on the stationary mold whereas the other semi-hollow body is left on the movable mold; and forming a thin film on an inner surface of at least one of the pair of semi-hollow bodies; abutting openings of the pair of semi-hollow bodies while the pair of semi-hollow bodies are left in the molds; and injecting a molten resin around the openings of the pair of semi-hollow bodies so as to integrate the pair of semi-hollow bodies to form a hollow body, wherein the forming of the thin film is carried out in the molds by covering said at least one of the pair of semi-hollow bodies left in the molds with a depositing chamber, the depositing chamber being provided separately from the molds and including a deposition element comprising a target electrode, a substrate electrode and a vacuum suction pipe; wherein the forming of the thin film is carried out while the stationary mold is separated from the moveable mold.