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

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

2005-01-18

2005-01-18

Pyon, Harold (Department: 1772)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With viewing layer of specified composition

C428S001310

Reexamination Certificate

active

06844033

ABSTRACT:
A cellulose ester film and its manufacturing method are disclosed, the cellulose ester film comprising a compound represented by the following formula (1) in an amount of from 1 to 30% by weight,wherein Y represents an ester bond or a divalent organic group containing an ester bond, RTA and Rd independently represent a substituent, and m and n independently represent an integer of 0 to 5, provided that when m or n is not less than 2, plural Ras or Rbs may be the same or different.

REFERENCES:
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patent: 2364112 (1944-12-01), Van Every
patent: 2412611 (1946-12-01), Gloor
patent: 3391296 (1968-07-01), Snaper
patent: 4544583 (1985-10-01), Claussen et al.
patent: 5806834 (1998-09-01), Yoshida
Morflex, Inc., Morflex 150, 1999.

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