Title:
METHOD FOR PRODUCING SYNTHETIC RESIN FILM AND SYNTHETIC RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2005/082594
Kind Code:
A1
Abstract:
A method for continuous production of a synthetic resin film which comprises (A) a step of applying a composition containing a polymer and an organic solvent continuously on a support through allowing the composition to flow and extend thereon, to thereby form a gel film, (B) a step of ripping the gel film off the support and fixing both ends of the gel film, (C) a step of conveying the film in a heating furnace while fixing both ends of the film, wherein the film is fixed in such a manner that the tensile force in the direction of the width (TD direction) of the film is substantially zero in at least a part of the (C) step. The above film can be suitably used for the continuous production of a synthetic resin film exhibiting stable physical properties over the whole width thereof, in particular, a synthetic resin film having the molecular orientation controlled to MD direction, which is considered to be useful in the electronic field.
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Inventors:
Fujihara, Kan (1-25-1, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Ono, Kazuhiro (2-1-2, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Itoh, Toshihisa (8-42, Yosai Momoyamacho, Fushimi-ku, Kyoto-sh, Kyoto 16, 61280, JP)
Matsuwaki, Takaaki (1-25-1, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Ono, Kazuhiro (2-1-2, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Itoh, Toshihisa (8-42, Yosai Momoyamacho, Fushimi-ku, Kyoto-sh, Kyoto 16, 61280, JP)
Matsuwaki, Takaaki (1-25-1, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Application Number:
PCT/JP2005/003240
Publication Date:
September 09, 2005
Filing Date:
February 21, 2005
Export Citation:
Assignee:
KANEKA CORPORATION (2-4 Nakanoshima 3-chome, Kita-ku Osaka-sh, Osaka 88, 53082, JP)
Fujihara, Kan (1-25-1, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Ono, Kazuhiro (2-1-2, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Itoh, Toshihisa (8-42, Yosai Momoyamacho, Fushimi-ku, Kyoto-sh, Kyoto 16, 61280, JP)
Matsuwaki, Takaaki (1-25-1, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Fujihara, Kan (1-25-1, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Ono, Kazuhiro (2-1-2, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
Itoh, Toshihisa (8-42, Yosai Momoyamacho, Fushimi-ku, Kyoto-sh, Kyoto 16, 61280, JP)
Matsuwaki, Takaaki (1-25-1, Hieitsuji Otsu-sh, Shiga 04, 52001, JP)
International Classes:
B29C41/24; B29C41/26; B29C41/28; B29C41/52; B29C55/08; C08J5/18; H05K3/00; H05K1/00; (IPC1-7): B29C41/24; B29C41/52; C08J5/18
Attorney, Agent or Firm:
KANEKA CORPORATION (2-4 Nakanoshima 3-chome, Kita-ku Osaka-sh, Osaka 88, 53082, JP)
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