Eastman Chemical Company

Wesley Wayne McConnell

Bin Wang

Matthew Allen Boone

David William Norman

Robert Joseph Maleski

Christopher Harlan Burk

Eduardo Gallas Cervo

Tabatha Stearns

Jennifer A Fish

Peter Borden Mackenzie

Elaine Beatrice Mackenzie

Michael Eugene Donelson

Charles Michael Buchanan

Jeffrey Todd Owens

Robert Jacks Sharpe

Haining An

Casey Lynn Elkins

David Wayne Compton

Qianqian Zhang

The present application discloses films comprising regioselectively substituted cellulose esters and a component A wherein rings A, B, C, R, R, R, R, R, m, n, and k are defined herein. The films are C+ films that exhibit improved wavelength dispersion. <

Regioselectively substituted cellulose ester based C+ compensation films with improved wavelength dispersion

Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.

Regioselectively substituted cellulose esters and films made therefrom

The application discloses cellulose ester compositions comprising two or more miscible blends of cellulose ester each comprising a plurality of propionyl substituents having tunable rheology and physical properties not achievable by any one of the cellulose esters alone. These cellulose ester compositions can be further processed, with or without other materials such as plasticizers, flame retardants, and blowing agents, and converted into articles. These cellulose ester compositions have higher modulus and have low to no butyryl/butyric acid content relative to cellulose acetate butyrate ('CAB') cellulose ester compositions made from CABs having a butyryl content of greater than 30 wt %.

Cellulose ester compositions

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Kingsport, TN, United States of America

Wesley Wayne McConnell