Cellulose ester film, its manufacturing method, optical...

Details Cellulose ester film, its manufacturing method, optical... Cellulose ester film, its manufacturing method, optical...

2007-12-11

2007-12-11

Dye, Rena (Department: 1772)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With bonding or intermediate layer of specified composition

C428S001100, C428S001330, C349S118000, C264S001340, C264S208000

Reexamination Certificate

active

10965329

ABSTRACT:
A manufacturing method of a cellulose ester film satisfying the relationships, Nx>Ny>Nz, and 0.8≦Rt/R0≦3.5, the method comprising casting a cellulose ester dope containing a solvent of a good solvent and a poor solvent on a support to form a web; peeling the web from the support; transporting the peeled web (step D0); holding the edges in the transverse direction of the web (step A); stretching the resulting web in the transverse direction while applying a tension; reducing the tension in the transverse direction of the web; and drying the stretched web, wherein the residual solvent content of the web is 5 to 90% by weight at the beginning in the step A, and the residual poor solvent content in the residual solvent content of the web is from 15 to 95% by weight at the terminal point in the Step D0.

REFERENCES:
patent: 5061042 (1991-10-01), Nakamura et al.
patent: 5219510 (1993-06-01), Machell et al.
patent: 5635262 (1997-06-01), Best et al.
patent: 5693253 (1997-12-01), Ohnishi et al.
patent: 6036913 (2000-03-01), Shibue et al.
patent: 6139785 (2000-10-01), Shuto et al.
patent: 6417904 (2002-07-01), Yamaoka et al.
patent: 6476892 (2002-11-01), Aminaka
patent: 6503581 (2003-01-01), Shibue et al.
patent: 6518004 (2003-02-01), Hashimoto
patent: 6582645 (2003-06-01), Takeda
patent: 6630973 (2003-10-01), Matsuoka et al.
patent: 6814914 (2004-11-01), Tasaka et al.

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