Uniroyal Chemical Company, Inc.

Uniroyal Inc.

Crompton Gmbh

Other

Chemtura Corporation

Russell E Malz, Jr

Harold Greenfield

Michael P Reynolds

Steven Lawrence Suib

Richard A Gencarelli

Mark P Ferrandino

Gerard V Smith

Ruozhi Song

Roger W Amidon

Edward L Wheeler

Franklin H Barrows

Mark W Simon

Joseph F Stieber

Chung-Yuan Lin

Steven C Gedon

Martin J Hannon

Melinda B Hale

Joseph A Feiccabrino

Young-Chan Son

Robert W Brown

John W Sargent

Ranjit Kumar

Luis Javier Garces

An antiozonant mixture is disclosed wherein said mixture comprises at least two compounds, and wherein

Antiozonant blends

A process is disclosed for preparing ortho substituted phenylamines comprising contacting phenylhydroxylamine, optionally substituted with at least one inert substituent, with a nucleophilic reagent in the presence of a manganese oxide at a temperature between about 10&#xb0; C. and about 170&#xb0; C. and a pressure from subatmospheric to superatmospheric such that an ortho substituted phenylamine, optionally correspondingly substituted with at least one inert substituent, is predominantly formed.

Process for preparing ortho substituted phenylamines

Liquid antiozonant mixtures obtained from the process comprising simultaneously reacting at least one unsubstituted and/or substituted paraphenylenediamine compound with a carbonyl compound mixture comprising acetone and at least one other carbonyl compound selected from the group consisting of ketones containing from 4 to about 12 carbon atoms, aldehydes containing from 1 to about 12 carbon atoms and mixtures thereof in the presence of a reductive alkylation catalyst is provided. Rubber compositions containing the liquid antiozonant mixtures is also provided.

Liquid antiozonants and rubber compositions containing same

Process for the synthesis of 2,2,6,6-tetramethyl-4-oxopiperidine

A process is provided for preparing a bis(silylorgano)amine in which a cyanoorganosilane is reacted with hydrogen under hydrogenation conditions in the presence of a catalytically effective amount of hydrogenation catalyst selected from the group consisting of rhodium, ruthenium, palladium and platinum to produce the secondary aminoorganosilane.

Process for preparing bis(silylorgano)amines

Method for the production of 2-mercaptobenzothiazole

A method for producing aromatic amines such as N-phenyl-p-phenylenediamine is disclosed wherein an amine substituted aromatic such as aniline is oxidized with oxygen or hydrogen peroxide in the presence of a preferred trisodium pentacyano ferrate(II) complex containing various water soluble ligands, such as ammonia, mono alkyl amine, dialkyl amines, and trialkyl amines. The complex is subsequently catalytically reduced by hydrogenation using certain heterogeneous metal catalysts to yield the desired aromatic amine.

Preparation of substituted aromatic amines

An improvement in a process for the preparation of a p-aminodiarylamine by reduction of the corresponding nitroso or nitro compound with hydrogen in a hydrogenator in the presence of a catalyst is disclosed. The invention includes equipping the hydrogenator with filtration means capable of separating the p-aminodiarylamine product from the catalyst, whereby the p-aminodiarylamine product can be removed from the hydrogenator while the catalyst is retained therein, thereby permitting the reaction to be run semicontinuously or continuously.

Process for preparing para-phenylenediamine derivatives

Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.

Process of preparing para substituted phenylamines

A process of preparing para phenylenediamines, such as, p-aminodiphenylamine. The process involves contacting nitrobenzene or a substituted derivative thereof with hydrogen and an amine, such as aniline, in the presence of a hydrogenation catalyst, a hydrogenation inhibitor, and an acid cocatalyst under reaction conditions.

Process of preparing para phenylamines

Diphenylamine is produced by contacting aniline with an alumina catalyst having at least about 30 percent by volume of its total porosity in the form of pores having a diameter of between about 120 and about 200 Angstroms and a sulfur content, as measured in the form of SO.sub.4, of less than about 0.02 percent by weight at between about 380.degree. and 475.degree. C.

Process for the production of diphenylamine

Certain 2-quinoxalinol-4-oxides are selectively reduced to form 2-quinoxalinols employing hydrogen as a reducing agent by reacting such 2-quinoxalinol-4-oxides with a catalyst selected from the group consisting of sulfided platinum, sulfided palladium, sulfided rhodium and sulfided ruthenium.

Process for the selective reduction of 2-hydroxyquinoxaline-4-oxides

2,2,6,6-tetraalkyl-4-piperidylamines are produced by reacting an amine with a 2,2,6,6-tetraalkyl-4-piperidone in the presence of a catalyst selected from the group consisting of platinum, nickel and cobalt, employing a reaction medium comprising (a) between about 10 and 100 weight percent water and (b) between 0 and about 90 weight percent of a polar organic compound selected from the group consisting of C.sub.1 -C.sub.10 aliphatic alcohols and C.sub.2 -C.sub.6 aliphatic glycols.

Process for the production of 2,2,6,6-tetraalkyl-4-piperidylamines

2,2,6,6-tetraalkyl-4-piperidylamines are produced by reacting an amine with a 2,2,6,6-tetraalkyl-4-piperidone in the presence of a palladium catalyst.

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Naugatuck, CT, United States of America

Russell E Malz, Jr