Eastman Chemical Company

Abbott Laboratories Corporation

Fastman Chemical Company

Flexsys Holdings, Inc.

Scott Donald Barnicki

Robert Thomas Hembre

Sumit Chakraborty

Robert Sterling Kline

Stephen Neal Falling

Charles Edwan Sumner, Jr

Michael Richard Laningham

Jeffrey Scott Kanel

Jerome Leonard Stavinoha, Jr

Shane Kipley Kirk

Mesfin Ejerssa Janka

John Robert Monnier

Frederick Ignatz-Hoover

Kenneth Wayne Hampton, Jr

Steven J Adams

Andrew Neil Smith

Henk Kreulen

Venkateswarlu Bhamidi

Elaine Beatrice Mackenzie

Christopher Hardacre

Chester Wayne Sink

Venkata Bharat Ram Boppana

Larry Wayne Blair

Joy Lynn Laningham

Kelley Margaret Moran

Guoxiong Hua

John Derek Woollins

Jackie Lee Hamilton

Terrence B Mazer

Peter Borden Mackenzie

Andrew James Vetter

Jennifer Ellen McCusker-Orth

Gary Wayne Hartley

Aruna Mani Velamakanni

David Alan Jenkins

Jerry Lynn Miller

Robert Alan Miller

Dewey Wayne Fuller, Jr

Jingyi Liu

Randy Lynn Jennings

Stijn Van De Vyver

Joseph Robert Zoeller

Damon Ray Billodeaux

Zhufang Liu

Bruce L Gustafson

Charles A McCombs

Steven Thomas Perri

Robert Jacks Sharpe

Donald W Lane

Timothy Alan Upshaw

Dewey W Fuller, Jr

Anthony Dominick Messina

Joseph Franklin Knight

Eduardo Gallas Cervo

Robert Scott Huss

James C Phillips

Timothy Richard Nolen

Kimberly Thornton Peters

Xiaopeng Shan

Vickie Haygood Osborne

Eleanor Hawkins Cwirko

Mary Kathleen Foster

Stephanie Rollins Testerman

Martin D Dolfi

Gerarld Wayne Ollis

Vikram Seshadri

Emily Elizabeth Jameson

James Alan Kenning

H Chip Williams

Hampton Loyd Williams, Iii

Chenchy Lin

Manik Lal Saha

Ronald H Arthur

Silu Wang

David William Rooney

Fei Qi

Daniel McNabb

James Eric Ward

Gerald Wayne Ollis

Paul Randolph Worsham

Steven Edward Briley

Aruna M Velamakanni

Richard J Lorenzo-Arocho

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

The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.

Method for the manufacture of cyclododecasulfur

Vulcanizable elastomeric formulation are disclosed. The formulations comprise at least one elastomer; a vulcanizing agent comprising cyclododecasulfur; and a prevulcanization inhibitor, present in an amount, for example, from about 0.01 phr to about 10 phr. The formulations, when vulcanized, provide articles that exhibit improved durability.

Durable elastomeric compositions employing cyclododecasulfur as a vulcanizing agent

A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. NaCO, CsCO, KCO, RbCO, sodium methoxide or titanium isopropoxide are suitable catalysts.

Synthesis of triethylene glycol bis(2-ethylhexanoate)

A process for making methyl esters in high yields. The process comprises contacting aliphatic or aromatic aldehydes and methanol with a homogeneous dimeric ruthenium catalyst, to catalyze the dehydrogenative coupling between aliphatic or aromatic aldehydes and methanol. The reaction is highly selective (&#x3c;99.9%) toward the formation of methyl esters over homoesters and alcohols and operates at temperatures of less than 100&#xb0; C. for 2-8 hours.

Process for the production of esters

Disclosed is a process for recovering formic acid from a formate ester of a Cto Calcohol. Disclosed is also a process for producing formic acid by carbonylating a Cto Calcohol, hydrolyzing the formate ester of the alcohol, and recovering a formic acid product. The alcohol may be dried and returned to the reactor. The process enables a more energy efficient production of formic acid than the carbonylation of methanol to produce methyl formate.

Process for making formic acid utilizing lower-boiling formate esters

A vulcanizing composition useful for the vulcanization of vulcanizable formulations is disclosed. The vulcanizing composition includes a vulcanizing agent which in turn includes a cyclododecasulfur compound. A cyclododecasulfur compound characterized by a DSC melt point onset of between 155&#xb0; C. and 167&#xb0; C. when measured at a DSC heat rate of 20&#xb0; C./minute is also disclosed.

Vulcanizing composition containing cyclododecasulfur and improved cyclododecasulfur compound

Disclosed is a process for recovering formic acid from a formate ester that allows for recovery of a formic acid product comprising greater than 75 wt. % formic acid. Disclosed is also a process for producing formic acid by carbonylating a carrier alcohol, hydrolyzing the formate ester of the carrier alcohol, and recovering a formic acid product comprising greater than 70 wt. % formic acid. Discloses are carrier alcohols that enable more favorable hydrolysis equilibriums and/or distillation sequences.

Process for making formic acid utilizing higher-boiling formate esters

A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (&#x3e;99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.

Iron-catalyzed cross-coupling of methanol with secondary or tertiary alcohols to produce formate esters

Disclosed is a process for the purification of a mixed diol stream. The mixed diol stream comprising two-, three-, and four-carbon diols is separated into component diols by extraction with a hydrophobic solvent mixture. The diols recovered in the extractant may be removed from the extractant stream by back extraction with water or by distillation with an azeotrope-forming agent present, preferably an azeotroping agent already present in the extractant mixture.

Process for the separation and purification of a mixed diol stream

Processes for forming a vulcanizable elastomeric formulation are disclosed. The processes include the steps of mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes the vulcanizing agent dispersed in the elastomeric compound, wherein the vulcanizing agent includes a cyclododecasulfur compound. A process for forming a vulcanized elastomeric article is also described.

Processes for forming vulcanizable elastomeric formulations and vulcanized elastomeric articles

Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the transfer hydrogenation of esters using C-Calcohols as sacrificial hydrogen donors to produce corresponding alcohols from the esters. No external Hpressure is required. The reaction can be carried out under ambient pressure.

Iron-catalyzed transfer hydrogenation of esters to alcohols

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Kingsport, TN, United States of America

Scott Donald Barnicki