COMPOSITE SPOUT AND INJECTION MOLDING APPARATUS FOR MOLDING COMPOSITE SPOUT

Title:

COMPOSITE SPOUT AND INJECTION MOLDING APPARATUS FOR MOLDING COMPOSITE SPOUT

Document Type and Number:

WIPO Patent Application WO/2007/102566

Kind Code:

A1

Abstract:

A composite spout in which a sleeve fitted to a core member is not displaced during injection molding and the end face of the sleeve is not exposed to the inside of a spout body. A functional resin layer is provided as an intermediate layer in the sleeve, a spout body is injection-molded with the sleeve that functions as a core and is put over the core member of an injection molding die. Therefore, substantially only the inner peripheral surface of the sleeve is exposed to the inner peripheral surface of the spout body. At least a circumferential part of one end of the inner peripheral surface of the spout body meets the inner peripheral edge on one end side of the sleeve or forms a slope radially outwardly tilting from the part of the spout body toward the one end of the spout body.

Inventors:

KUROSAWA TAKAHIRO (JP)
TAKEUCHI KIMIO (JP)
HASHIMOTO KATSUMI (JP)
YONEKAWA YUHEI (JP)
ISHII OSAMU (JP)
MATSUTANI HIROOMI (JP)

Application Number:

PCT/JP2007/054497

Publication Date:

September 13, 2007

Filing Date:

March 01, 2007

Export Citation:

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Assignee:

TOYO SEIKAN KAISHA LTD (JP)
CROWN CORK JAPAN (JP)
KUROSAWA TAKAHIRO (JP)
TAKEUCHI KIMIO (JP)
HASHIMOTO KATSUMI (JP)
YONEKAWA YUHEI (JP)
ISHII OSAMU (JP)
MATSUTANI HIROOMI (JP)

International Classes:

B65D33/38; B29C33/12; B29C45/14; B29L23/00

Domestic Patent References:

WO2003029094A1

2003-04-10

Foreign References:

JP2006001623A	2006-01-05
JPH07205193A	1995-08-08
JP2001213455A	2001-08-07
JP2007106498A	2007-04-26
EP1700794A1	2006-09-13
JP2001213455A	2001-08-07

Other References: