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US 2006/0233973 A1Published application
Cellulose ester film, manufacturing method thereof, optical film, polarizing plate and liquid crystal display
AssigneeKonica Minolta Opto, Inc.
InventorsKazuaki Nakamura, Kazuto Kiyohara, Satomi Kawabe, Akihiko Takeda, Yasushi Okubo
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Abstract
A method of producing a cellulose ester film comprising the steps of: (i) melting a cellulose ester containing 5.0% by weight or less of water at a temperature in the range of 150 to 300° C.; and (ii) melt casting the molten cellulose ester to form the cellulose ester film, wherein a compound having both a phenol moiety and a hindered amine moiety in the molecule is incorporated in the cellulose ester.
Claims18
A method of producing a cellulose ester film comprising the steps of:
- (i) melting a cellulose ester containing 5.0% by weight or less of water at a temperature in the range of 150 to 300° C.;
- and
- (ii) melt casting the molten cellulose ester to form the cellulose ester film,
- wherein a compound having both a phenol moiety and a hindered amine moiety in the molecule is incorporated in the cellulose ester.
1 more element
Dependencies are inferred from the claim text.