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Title:
MANUFACTURING METHOD OF CELLULOSE ACYLATE FILM
Document Type and Number:
Japanese Patent JP2002160240
Kind Code:
A
Abstract:

To obtain a cellulose acylate film by use of a cellulose acylate solution showing excellent stability with time by no use of a chlorine-based organic solvent such as methylene chloride.

A manufacturing method for a cellulose acylate film comprises a step of swelling cellulose acylate in a substantially non-chlorine-based solvent for 10 minutes or more, a step of dissolving the cellulose acylate in the solvent by cooling or heating the obtained swollen mixture and a step of forming the obtained solution into a film.


Inventors:
YAMADA TSUKASA
Application Number:
JP2000355277A
Publication Date:
June 04, 2002
Filing Date:
November 22, 2000
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G03C1/795; B29C41/28; B29C41/32; C08J5/18; C08K3/36; C08K5/00; C08L1/10; G02B5/30; (IPC1-7): B29C41/28; B29C41/32; C08J5/18; C08K3/36; C08K5/00; C08L1/10; G02B5/30; G03C1/795
Attorney, Agent or Firm:
Yasuo Yanagawa