Eastman Chemical Company

Flexsys America L.p.

Donald L Fields, Jr

Matthew Allen Boone

Frederick Ignatz-Hoover

Jayant S Lodaya

Raymond Anton Lohr, Jr

Michael K Stern

Otto W Maender

Judicael Jacques Chapelet

Raymond A Lohr

Phillip B Balderson

Raymond T Parker

Jonathan Michael Penney

The present invention is directed to compounds represented by the formula I: wherein Rcomprises a hydrogen atom or an alkyl group having 1 to 2 carbon atoms; wherein Rcomprises an alkylene group, an arylene group, or a heterocyclic group; and wherein R, R, R, R, R, and Rare identical or different and comprise a hydrogen atom, an alkyl group, an aryl group, or an alkylaryl group.

Triazinane derivatives and methods of making them

Methods of making antidegradant compounds are disclosed in which a p-phenylenediamine is reacted with a dicarbonyl to thereby obtain a diimine, which is reduced to obtain mixtures comprising the antidegradant compound.

Methods of making compounds and mixtures having antidegradant and antifatigue efficacy

Compounds with antidegradant and antifatigue efficacy and compositions including said compounds

Compounds and mixtures with antidegradant and antifatigue efficacy and compositions including said compounds

Antidegradant compounds are disclosed, and methods of making them, that are represented by the formula I:  Also disclosed are diimine intermediates corresponding to formula III: 

Compounds and mixtures with antidegradant and antifatigue efficacy and compositions including such compounds

Methods of making antidegradant compounds are disclosed in which a p-phenylenediamine is reacted with a diol to obtain mixtures comprising the antidegradant compounds.

A method of making antidegradant compounds is disclosed, in which a p-phenylenediamine is reacted with an alpha-hydroxy carbonyl compound to thereby obtain an enediamine, which is reduced to thereby obtain a mixture comprising the antidegradant compound.

Methods of making compounds having antidegradant and antifatigue efficacy

A hydroxydiphenylamine compound can be converted to an N-phenylquinoneimine by reacting the hydroxydiphenylamine with oxygen or an oxygen containing gas in the presence of a modified activated carbon catalyst, the catalyst having had surface oxides removed therefrom.

Preparation of N-phenyl-benzoquinoneimine from hydroxydiphenylamines

A process for the manufacture of a sulfenimide by reacting sulfenamide in slurry with a water immiscible organic solvent with an acid to yield a solvent slurry comprising sulfenimide product. The product is recovered from the solvent slurry by a method comprising the addition of water to the solvent slurry and the isolating of the product by a single filtration step. While water is added to the solvent slurry an azeotrope of solvent and water may be distilled under vacuum until substantially all solvent is separated from product and product becomes part of an aqueous slurry. Alternatively, water may be added to the solvent slurry while the resulting mixture is being agitated, followed by filtering the mixture in the single filtration step for recovery of product from the mixture.

Process for the manufacture of a sulfenimide

A phenylenediamine compound can be converted, with high selectivity, into its corresponding quinonediimine by reacting the phenylenediamine with a hypochlorite oxidation reactant.

Preparation of quinonediimines from phenylenediamines using a

A hydroxyphenylamine compound can be converted, with high yield and high selectivity, into its corresponding quinoneimine by reacting the hydroxyphenylamine with a hypochlorite oxidation reactant.

Preparation of quinoneimines from hydroxyphenylamines using a

A hydroxyphenylamine compound can be converted, with high selectivity, into its corresponding quinoneimine by reacting the hydroxyphenylamine with hydrogen peroxide in the presence of a catalyst.

Preparation of quinoneimines from hydroxyphenylamines using hydrogen

A phenylenediamine compound can be converted, with high selectivity, into its corresponding quinonediimine by reacting the phenylenediamine with oxygen and a metal catalyst or a salt thereof.

Growing community of inventors

Copley, OH, United States of America

Donald L Fields, Jr