Eastman Chemical Company

Akron Polymer Systems, Inc.

Eduardo Gallas Cervo

Bin Wang

Matthew Allen Boone

David William Norman

Robert Joseph Maleski

Christopher Harlan Burk

Wesley Wayne McConnell

Tabatha Stearns

Jennifer A Fish

Peter Borden Mackenzie

Elaine Beatrice Mackenzie

Thauming Kuo

Frank Wayne Harris

Scott Donald Barnicki

Dong Zhang

Jeffrey Scott Kanel

Ted Germroth

Xiaoliang Joe Zheng

Liu Deng

Wentao Li

Kenneth Wayne Hampton, Jr

Robert Jacks Sharpe

Alan Keith Phillips

Peiyao Wang

Lang Hu

Wesley Wayne Mcconnell

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

Disclosed is a process for making nitrated styrenic fluoropolymers having various degrees of substitution. The nitrated styrenic fluoropolymer is capable of providing an exceptionally high birefringence ranging from 0.02 to 0.036. Further, the birefringence can be tuned by varying the degree of substitution (DS) of the nitro group on the styrenic ring to meet the need for optical compensation film applications. More particularly, the optical compensation films of the present invention are for use in an in-plane switching LCD (IPS-LCD) and OLED display.

Method for the preparation of nitrated styrenic fluoropolymers

Disclosed is a process for the extractive recovery of a homogeneous ruthenium catalyst from the reaction product of the hydrogenation of glycolic acid, glycolate esters, and/or glycolic acid oligomers with an extractant comprising a hydrophobic solvent and an optional hydrophilic solvent. The ruthenium catalyst, which can include 1,1,1-tris(diaryl- or dialkylphosphinomethyl)alkane ligands, can be recovered from the hydrophobic extract phase by back extraction with a hydrophilic solvent and recycled to a process for the preparation of ethylene glycol by the hydrogenation of glycolic acid and glycolic acid derivatives.

Method for recovery and recycle of ruthenium homogeneous catalysts

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Kingsport, TN, United States of America

Eduardo Gallas Cervo