Method for producing cellulose acylate film

Details Method for producing cellulose acylate film Method for producing cellulose acylate film

2006-05-30

2010-11-09

Vargot, Mathieu D. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Controlling heat transfer with molding material

C264S001310, C264S002700, C264S211210, C264S217000, C264S290200

Reexamination Certificate

active

07828997

ABSTRACT:
According to the present invention, a cellulose acylate film difficult to be broken even if the stretching ratio is increased upon stretching and whose retardation (Re) is easily controllable to a desired value can be produced by melt film forming. Accordingly, a stretched cellulose acylate film highly oriented and having an appropriate retardation (Re) required from liquid crystal display device manufacturers can be produced.

REFERENCES:
patent: 2003/0031848 (2003-02-01), Sawada et al.
patent: 2005/0150426 (2005-07-01), Hashimoto et al.
patent: 2000-352620 (1980-12-01), None
patent: 2002-311240 (2002-10-01), None
patent: 2003-315551 (2003-11-01), None

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