Uniroyal Inc.

Uniroyal Chemical Company, Inc.

Richard A Gencarelli

Edward L Wheeler

Franklin H Barrows

Russell E Malz, Jr

Elmar H Jancis

Michael P Reynolds

Keith A Hughes

John F Sierakowski

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

A process is provided for making benzimidazoles having the formula ##STR1## wherein Y is oxygen, sulfur or --NH; R.sup.1 is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, C.sub.7 -C.sub.9 aralkyl or C.sub.7 -C.sub.9 alkaryl; R.sup.2 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen; and n is 1 or 2; comprising reacting a compound having the formula ZYCN, wherein Z is an alkali metal or ammonium moiety and Y has the meanings above; with a compound having the formula ##STR2## wherein R.sup.1, R.sup.2 and n have the meanings above, in the presence of a C.sub.4 -C.sub.10 alkanol and, except when Z is NH.sub.4, in the presence of an acid.

Process for making 2-mercapto benzimidazoles in the presence of a

The invention provides a process for preparing triazoles comprising reacting a compound having the structural formula ##STR1## with a compound having the formula

Process for making triazoles

Novel phenolically substituted esterbisamides as antioxidants useful for the protection of organic materials such as synthetic and natural rubbers, plastics and petroleum products against oxidative degradation.

Phenolic esteramide antioxidants

Novel phenolic oxamide antioxidants for protecting organic materials such as synthetic and natural rubbers, petroleum products, and plastics from oxidative degradation.

Polyfunctional phenolic oxamide antioxidants

This invention is directed to 1,5-bis(3',5'-dihydrocarbyl-4'-hydroxyphenyl)pentyl derivatives, including the 3-pentyl ester, amine and amide compounds. It also deals with the stabilization of organic materials by incorporating such compounds therein, either alone or in combination with a dialkyl 3,3'-thiodipropionate or a tri(alkaryl)phosphite.

1,5-Bis(3',5'-di-hydrocarbyl-4'-hydroxyphenyl)pentyl amines

1,5-Bis(3',5'-di-hydrocarbyl-4'-hydroxyphenyl)pentyl derivatives

Antimony N-(2-octyl)-N-ethyldithiocarbamate confers extreme pressure properties on lubricants.

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Cheshire, CT, United States of America

Richard A Gencarelli