Patent ID: 6106260
Filing Date: 2000-08-22
Classification: B29C

Abstract:
A mold for production of a hollow thermoplastic resin-molded article comprising:a set of a female mold member and a male mold member having opposing mold surfaces respectively, at least one mold member having a gas passage therein;a gas introducing member having a tip and having a gas path extending therethrough to said tip, said gas introducing member being disposed in at least one of said mold members such that said tip does not protrude from its respective mold surface, said path being in communication with said gas passage, wherein said gas introduction member is a molded piece having at least one of grooves in a peripheral part or penetrating holes through an interior thereof, said grooves and holes communicating with said gas passage; anda lagging material in at least one of said opposing mold surfaceswherein said lagging material is provided around the periphery of said gas introducing member and in the mold member having a gas passage.