Oliff & Berridge, PLC
Synthetic resin bottle and process for molding the same
A technical problem is to fully make up for a restricted upper limit to the preform body wall thickness. An object is to provide a bottle which is narrow-mouthed and yet has a substantially expanded body. The molding process comprises steps of: (1) injection molding a preform in the shape of a test tube taller than the bottle wherein the preform has a cylindrical mouth opening portion disposed in an upper part of the preform, and wherein the mouth opening portion of the preform serves also as a mouth opening portion of the bottle product; (2) thermally shrinking the preform from an initial height so that portions other than the mouth opening portion of the preform would have a height that is smaller than that of the bottle; and (3) setting this thermally shrunk preform in a blow mold and biaxially drawing and blow molding the preform into the bottle.
Yoshino Kogyosho Co., Ltd.
B B B B B B B B B B B B B B B B B B B B B B
B29L B29C B29C B29C B29C B29C B29C B29C B29B B29C B29C B65D B29C B29B B29C B29C B29C B29C B29C B29K B29K B65D
additional additional additional additional additional additional additional additional additional additional additional inventional additional inventional additional inventional additional additional additional additional additional inventional
Katsuyoshi Takashi Takao Yusuke
Inagawa Otsuka Iizuka Ishii