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Title:
HOLLOW ARTICLE AND METHOD AND APPARATUS FOR MOLDING HOLLOW ARTICLE
Document Type and Number:
WIPO Patent Application WO/1996/026062
Kind Code:
A1
Abstract:
A method of molding a hollow article, which comprises the step of injecting a molten resin into a main cavity having one end provided with a pressure port and a floating core and the other end communicating with a sub-cavity through a port capable of being opened and closed; and introducing a pressurized fluid through the pressure port to move the floating core towards the port, thereby extruding the resin from the main cavity into the sub-cavity until the floating core is moved into the sub-cavity.

Inventors:
KATAGIRI HIROKI (JP)
WATANABE MITUO (JP)
OZIRO MINORU (JP)
AKUTU HIDETOSHI (JP)
ONO MASAKI (JP)
IIDA ISAO (JP)
Application Number:
PCT/JP1996/000417
Publication Date:
August 29, 1996
Filing Date:
February 23, 1996
Export Citation:
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Assignee:
ARUPI TOPURA KABUSHIKI KAISHA (JP)
KATAGIRI HIROKI (JP)
WATANABE MITUO (JP)
OZIRO MINORU (JP)
AKUTU HIDETOSHI (JP)
ONO MASAKI (JP)
IIDA ISAO (JP)
International Classes:
B29C33/00; B29C33/76; B29C45/00; B29C45/17; B29C45/76; B29D23/00; (IPC1-7): B29C45/00; B29C33/34; B29D23/00
Foreign References:
JPH04208425A1992-07-30
JPH01145108A1989-06-07
JPH03138115A1991-06-12
JPH03121821A1991-05-23
Other References:
See also references of EP 0757936A4
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