Title:
PROCESS FOR PRODUCING SYNTHETIC RESIN FILM HAVING MOLECULAR ORIENTATION CONTROLLED IN MD DIRECTION
Document Type and Number:
WIPO Patent Application WO/2005/082595
Kind Code:
A1
Abstract:
A process for stably and continuously producing a synthetic resin film having its orientation made in the MD direction over the entire width thereof. There is provided a process for producing a synthetic resin film, comprising the steps of (A) applying a composition containing a polymer and an organic solvent onto a support by casting/coating and forming a gel film; (B) detaching the gel film and while immobilizing both edges thereof, heating the same; and (C) heating the gel film after the step (B) while canceling the immobilization of both edges, characterized in that the thickness (b) of the film obtained by the step (B) and the thickness (c) of the film obtained by the step (C) satisfy the relationship b>c.
Inventors:
MATSUWAKI TAKAAKI (JP)
ONO KAZUHIRO (JP)
FUJIHARA KAN (JP)
ITOH TOSHIHISA (JP)
AKAHORI KIYOKAZU (JP)
ONO KAZUHIRO (JP)
FUJIHARA KAN (JP)
ITOH TOSHIHISA (JP)
AKAHORI KIYOKAZU (JP)
Application Number:
PCT/JP2005/002200
Publication Date:
September 09, 2005
Filing Date:
February 08, 2005
Export Citation:
Assignee:
KANEKA CORP (JP)
MATSUWAKI TAKAAKI (JP)
ONO KAZUHIRO (JP)
FUJIHARA KAN (JP)
ITOH TOSHIHISA (JP)
AKAHORI KIYOKAZU (JP)
MATSUWAKI TAKAAKI (JP)
ONO KAZUHIRO (JP)
FUJIHARA KAN (JP)
ITOH TOSHIHISA (JP)
AKAHORI KIYOKAZU (JP)
International Classes:
B29C41/24; B29C41/28; B29C41/46; B29C55/00; B29C71/00; C08J5/18; H05K3/00; B29C35/04; B29C71/02; H05K1/00; (IPC1-7): B29C41/46; B29C41/24; C08J5/18
Foreign References:
| JPH11246685A | 1999-09-14 | |||
| JPS61264028A | 1986-11-21 | |||
| JP2003236861A | 2003-08-26 | |||
| JPH0355230A | 1991-03-11 | |||
| JPH0355231A | 1991-03-11 |
Attorney, Agent or Firm:
KANEKA CORPORATION (Kita-ku Osaka-shi, Osaka, JP)
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