Title:
CELLULOSE ACYLATE FILM, SATURATED NORBORNENE RESIN FILM, AND PROCESS FOR PRODUCING THESE
Document Type and Number:
WIPO Patent Application WO/2007/138970
Kind Code:
A1
Abstract:
A high-quality cellulose acylate film and saturated norbornene resin film which are
produced by a melt film formation method and can be inhibited from having steak failures.
Also provided is a process for producing the cellulose acylate film or the saturated
norbornene resin film. The process, which is for producing a cellulose acylate
film (12) or a saturated norbornene resin film, comprises melting a cellulose
acylate resin or saturated norbornene resin with an extruder (22), feeding the
molten resin to a die (24) through a piping (23), and ejecting the melt in a sheet
form from the die (24) onto a cooled support (26) which is running or rotating to
thereby cool and solidify the sheet. Thus, a cellulose acylate film (12) or saturated
norbornene resin film is formed. In the process, a static mixer (27) is disposed
in the piping (23) and the molten resin flowing in the piping (23) is statically
stirred.
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Inventors:
OTOSHI MASAAKI (JP)
Application Number:
PCT/JP2007/060587
Publication Date:
December 06, 2007
Filing Date:
May 24, 2007
Export Citation:
Assignee:
FUJIFILM CORP (JP)
OTOSHI MASAAKI (JP)
OTOSHI MASAAKI (JP)
International Classes:
B29C48/08; B29C48/305; C08F32/08; C08G61/08; C08J5/18; G02B5/30; G02F1/13363; B29C48/525; B29K1/00; B29K45/00; B29L7/00
Foreign References:
| JP2006116904A | 2006-05-11 | |||
| JP2006116945A | 2006-05-11 | |||
| JP2004149640A | 2004-05-27 |
Attorney, Agent or Firm:
MATSUURA, Kenzo (P.O. Box 176 Shinjuku Sumitomo Bldg. 39F, 6-1, Nishi-shinjuku 2-chome, Shinjuku-k, Tokyo 39, JP)
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