Title:
MOISTUREPROOF MULTILAYERED FILM
Document Type and Number:
WIPO Patent Application WO/2001/089826
Kind Code:
A1
Abstract:
A moistureproof multilayered film which comprises a composite film comprising a non-hygroscopic resin layer and formed on at least one side thereof a vapor-deposited film of an inorganic oxide or a metal and has a layer constitution in which the surface of the vapor-deposited film of the composite film is bonded through an adhesive layer to another non-hygroscopic resin layer or to a vapor-deposited film of another composite film, the total number (n) of vapor-deposited films each adjacent to an adhesive layer being 2 to 8, and the multilayered film having a water vapor permeability (W; unit, g/m?2¿ day) satisfying the relationship W=(1/n)x0.20 when determined under the conditions of 40°C and 100 %RH; and a process for producing a moistureproof multilayered film which comprises heating the multilayered film in a dry atmosphere having a temperature of 55 to 140°C, excluding 140°C, for 10 hours or longer.
Inventors:
Terasaki, Shuji (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Akatsu, Masamichi (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Terashima, Hisaaki (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Tada, Yasuhiro (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Akatsu, Masamichi (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Terashima, Hisaaki (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Tada, Yasuhiro (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Application Number:
PCT/JP2000/003383
Publication Date:
November 29, 2001
Filing Date:
May 26, 2000
Export Citation:
Assignee:
KUREHA CHEMICAL INDUSTRY CO., LTD. (1-9-11, Nihonbashi Horidome-cho Chuo-ku, Tokyo, 103-8552, JP)
Terasaki, Shuji (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Akatsu, Masamichi (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Terashima, Hisaaki (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Tada, Yasuhiro (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Terasaki, Shuji (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Akatsu, Masamichi (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Terashima, Hisaaki (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
Tada, Yasuhiro (Jushikakougijutsu Center, Kureha Chemical Industry Co. Ltd. 18-13, Oaza Kamitamar, Tamari-mura Niihari-gun Ibaraki, 311-3436, JP)
International Classes:
B32B7/12; B29C65/48; B29C71/02; B32B15/08; B32B37/12; (IPC1-7): B32B7/12; B32B27/00; B32B9/00; B32B15/08
Attorney, Agent or Firm:
Miyagawa, Teiji (Woody21, 5th Floor 23 Aizumi-cho Shinjuku-ku, Tokyo, 160-0005, JP)
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