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Title:
PROCESS FOR PRODUCING CELLULOSE ACYLATE FILM
Document Type and Number:
WIPO Patent Application WO/2003/011590
Kind Code:
A1
Abstract:
A cellulose acylate film is produced by using a cellulose acylate solution and forming a film consisting of two or more layers by the co−casting method. The cellulose acylate to be used is selected so that the association molecular weight of cellulose acylate due to the static light scattering in the solution forming the outer layer becomes smaller than the association molecular weight of cellulose acylate due to the static light scattering in the solution forming the inner layer.

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Inventors:
YAMADA TSUKASA (JP)
Application Number:
PCT/JP2002/007799
Publication Date:
February 13, 2003
Filing Date:
July 31, 2002
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD (JP)
YAMADA TSUKASA (JP)
International Classes:
B32B17/10; B32B23/00; B32B27/00; C08J5/00; C08J7/043; C08J7/044; G03C1/795; B29C41/28; (IPC1-7): B32B23/20; B29C41/12; B29C41/22; G02B5/30; C08L1/12
Foreign References:
JPH08207210A1996-08-13
JPH11254594A1999-09-21
JPH08143708A1996-06-04
JPH1058514A1998-03-03
JPH1045950A1998-02-17
JP2000317960A2000-11-21
Other References:
See also references of EP 1437217A4
Attorney, Agent or Firm:
Yanagawa, Yasuo (2-14 Yotsuy, Shinjuku-ku Tokyo, JP)
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