Title:
METHOD FOR REGENERATING CELLULOSE TRIACETATE FILM AND THEREBY MANUFACTURED CELLULOSE TRIACETATE FILM, POLARIZING PLATE AND PICTURE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP3922687
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for efficiently manufacturing a TAC (cellulose triacetate) film from a used polarizing plate using a TAC film as a transparent protective film.
SOLUTION: The method for regenerating the TAC film is characterized by having a step to subject the polarizing plate using the TAC film as the transparent protective film on at least a surface of a polarizer to solvent treatment and to dissolve the TAC film in the solvent and manufacturing the film from the TAC solution obtained in the previous step.
Inventors:
Yuji Suiki
Kazuki Tsuchimoto
Nagatsuka Tatsumura
Kazuki Tsuchimoto
Nagatsuka Tatsumura
Application Number:
JP2001396603A
Publication Date:
May 30, 2007
Filing Date:
December 27, 2001
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
G02B5/30; B29C41/12; C08J5/18; C08J11/08; G02B1/10; G02B1/14; G02F1/1335; B29K1/00; B29L7/00; C08L1/12; (IPC1-7): G02B5/30; B29C41/12; C08J5/18; C08J11/08; G02B1/10; G02F1/1335; //B29K1:00; B29L7:00; C08L1:12
Domestic Patent References:
| JP8157795A | ||||
| JP8122525A | ||||
| JP2001213995A | ||||
| JP2001300939A | ||||
| JP2001342447A |
Attorney, Agent or Firm:
Koichi Kajisaki
Yuzo Ozaki
Toshihiko Taniguchi
Yuzo Ozaki
Toshihiko Taniguchi