ULTRASONIC-SEALED LAMINATE AND METHOD OF PRODUCING THE SAME, AND ULTRASONIC WELDING MACHINE USING THE SAME

Title:

ULTRASONIC-SEALED LAMINATE AND METHOD OF PRODUCING THE SAME, AND ULTRASONIC WELDING MACHINE USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2003/076272

Kind Code:

A1

Abstract:

A laminate whose films are reliably ultrasonically joined and sealed; a method of producing the same; and an ultrasonic welding machine used therefor. In such laminate, a fluidic substance (4) is disposed between weldable thermoplastic resin films (2, 3), and at least part of the peripheral edge thereof is multi-sealed by a joint (5) formed by ultrasonic welding and a joint (6) formed on the outside thereof by ultrasonic fusion, thus making it possible to reliably confine the fluidic substance without causing it to leak outside.

Inventors:

Saito, Katsunori c/o Showa Denko Plastic Products Co. Ltd. (Kawasaki Research Laboratory, 3-2, Chidori-cho, Kawasaki-k, Kawasaki-shi Kanagawa, 210-0865, JP)
Ishiwatari, Kiyokazu c/o Showa Denko Plastic Products Co. Ltd. (Kawasaki Research Laboratory, 3-2, Chidori-cho, Kawasaki-k, Kawasaki-shi Kanagawa, 210-0865, JP)

Application Number:

PCT/JP2003/003008

Publication Date:

September 18, 2003

Filing Date:

March 13, 2003

Export Citation:

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Assignee:

SHOWA DENKO PLASTIC PRODUCTS CO., LTD. (9-10, Nihonbashi Horidome-cho 1-chom, Chuo-ku Tokyo, 103-0012, JP)
Saito, Katsunori c/o Showa Denko Plastic Products Co. Ltd. (Kawasaki Research Laboratory, 3-2, Chidori-cho, Kawasaki-k, Kawasaki-shi Kanagawa, 210-0865, JP)
Ishiwatari, Kiyokazu c/o Showa Denko Plastic Products Co. Ltd. (Kawasaki Research Laboratory, 3-2, Chidori-cho, Kawasaki-k, Kawasaki-shi Kanagawa, 210-0865, JP)

International Classes:

B65B61/04; B29C65/00; B29C65/08; B29C65/74; B65B51/10; B65B51/22; B29L22/00; (IPC1-7): B65B51/10; B29C65/08

Attorney, Agent or Firm:

Shiga, Masatake (Shiga International Patent Office, 2-3-1 Yaesu Chuo-ku, Tokyo, 104-8453, JP)

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