Eastman Chemical Company

Akron Polymer Systems, Inc.

Robert Jacks Sharpe

Bin Wang

Casey Lynn Elkins

Thauming Kuo

Liu Deng

Emmett Dudley Crawford

Nick Allen Collins

Terri Roxanne Carvagno

Christopher Harlan Burk

Shawn Marie Dougherty

Vasudev R Bhonde

Monika Karin Wiedmann Boggs

Ke Feng

Frank Wayne Harris

Charles Michael Buchanan

Scott Donald Barnicki

Robert Thomas Hembre

Robert Lin

Dong Zhang

Ted Germroth

Damon Ray Billodeaux

Xiaoliang Joe Zheng

Wentao Li

Kenneth Wayne Hampton, Jr

Alan Keith Phillips

Wesley Wayne McConnell

Eduardo Gallas Cervo

Michael John Rodig

Peiyao Wang

Lang Hu

Manik Lal Saha

Qianqian Zhang

A pentamer comprising the following: R and R″ are residues of at least one diol selected from 2,2,4,4-tetramethylcyclobutane-1,3-diol, 1,2-cyclohexanedimethanol, 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, hydroxypivalyl hydroxypivalate, isosorbide, 1,4-di-(hydroxyethoxy)-benzene, 2,2-bis-(4-hydroxycyclohexyl)-propane, 2,4-dihydroxy-1,1,3,3-tetramethyl-cyclobutane, 2,2-bis-(3-hydroxyethoxyphenyl)-propane, or 2,2-bis-(4-hydroxypropoxyphenyl)-propane; and R and R″ are not the same; and R' comprises residues of at least one diacid or diester.

Polycondensation pre-polyesters, other copolyester precursors, and copolyesters made therefrom

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

A process for making a polycondensation pre-polyester, a polyester or both, comprising the following steps: following steps: A. Acylation of at least one diacid chloride with at least one alcohol to form at least one diester; B. Partial hydrolysis of the diester product of Step A to form at least one monoacid; C. Esterifying the monoacid of Step B with at least one diol to form a diester; D. Reacting the diester of Step C under acidic conditions to form a diacid; and subsequently, performing either Step E or Step F as follows: E. Bisalkylation of the diacid of Step D with at least one haloalcohol to form a pentamer, or F. Esterifiying the diacid of Step D under esterification conditions with at least one diol to form a pentamer, provided that the diol is not the same as the diol used in Step C.

Process for making novel polycondensation pre-polyesters, other copolyester precursors, and copolyesters

The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.

Regioselectively substituted cellulose esters

An efficient process useful for the self-condensation of aliphatic aldehydes is provided, catalyzed by dialkylammonium carboxylate salts. In particular, the invention provides a facile method for the preparation of 2-ethyl hexenal via the self-condensation of butyraldehyde using various dialkylammonium carboxylates, e.g., diisopropylammonium acetate or dimethylammonium acetate, as catalyst. Additionally, residual nitrogen arising from the catalyst can be reduced to −100 ppm levels in the product via a simple washing procedure. The invention provides a process for preparing alkenals under conditions which limit the formation of undesired impurities and high-boiling oligomeric substances.

Self-condensation of aldehydes

This invention relates to a curable composition comprising:

Curable compositions comprising acetoacetylated resins, aldehydes and certain amines

This invention relates to an article of manufacture comprising at least one flexible substrate coated with at least one curable composition comprising:

Flexible substrates comprising curable compositions containing acetoacetylated resins

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

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Johnson City, TN, United States of America

Robert Jacks Sharpe