The Goodyear & Tire Rubber Company

Angelo Bergomi

James J Tazuma

Paul Harry Sandstrom

Lawson G Wideman

Edward John Blok

Joseph A Kuczkowski

Mark Leslie Kralevich, Jr

James Anderson Schlademan

The present application relates to a pneumatic tire having a tread comprised of (a) a diene-based elastomer containing olefinic unsaturation and (b) from 1 to 50 phr of polymeric resinous material comprising from about 4 to about 60 weight percent units derived from piperylene, from about 10 to about 35 weight percent units derived from 2-methyl-2-butene and from about 18 to about 50 weight percent units derived from dicyclopentadiene.

Pneumatic tire having a tread containing resin

There is disclosed a process for the preparation of N,N'-tetrathiodimorpholine wherein an admixture of morpholine and elemental sulfur is oxidized with air or oxygen in the presence of iron salts or iron complexes in combination with zinc compounds such as ZnCl.sub.2 and ZnO to yield N,N'-tetrathiodimorpholine.

Process for the preparation of N,N'-tetrathiodimorpholine

This invention relates to a new process for the preparation of N-polythiodimorpholines wherein morpholine and elemental sulfur in an alcohol mixture are oxidized with an alkali metal hypohalite or an alkaline earth metal hypohalite or N-chloromorpholine to yield N-polythiodimorpholines. The process produces N-polythiodimorpholines without the use of corrosive or toxic chemicals and the product is an economical substitute for conventional rubber curatives.

Process for preparing N-polythiodimorpholines

Method of preparing tetraalkyl thiuram disulfides by racting a secondary amine with carbon disulfide in a substantially neutral solution of a saturated aliphatic alcohol and oxidizing the dithiocarbamate formed thereby with a hydroperoxide. The invention has particular utility by providing a relatively pollution-free method of preparing tetraalkyl thiuram disulfides.

Method of preparing tetraalkyl thiuram disulfides

Method of preparing dibenzothiazolyl disulfides by oxidizing mercaptobenzothiazole in a substantially neutral saturated aliphatic alcohol solution with a hydroperoxide. The invention has particular utility by providing a relatively pollution-free method of preparing dibenzothiazolyl disulfides.

Method of preparing dibenzothiazolyl disulfides

Hydrocarbon fraction containing diolefins and .alpha.-acetylenes are treated with base-modified catalyst to reduce the .alpha.-acetylene content. The base-modified catalyst comprises a support such as alumina containing an alkali metal hydroxide and related bases.

Method of reducing the .alpha.-acetylene content of hydrocarbon

Hydrocarbon fraction containing diolefins and .alpha.-acetylenes are treated with an alkali amide to reduce the .alpha.-acetylene content.

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Akron, OH, United States of America

Angelo Bergomi