Exxon Research and Engineering Company

Exxon Chemical Patents, Inc.

Walter G Funk

Shun Chong Fung

John Joseph Steger

Jar-Lin Kao

Virginia R Cross

Kenneth R Poeppelmeier

Sudhin Datta

Hsien-Chang Wang

Edward N Kresge

Robert C Keller

Fred T Morrar

Laszlo L Ban

Elastomers modified by amine groups, particularly diethanol amine, are used for controlling carbon black distribution in elastomer blends.

Method to control carbon black distribution in elastomer blends

A class of bound catalysts which exhibit superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected from Group IA and calcium and barium cations and containing well dispersed particles of at least one Group VIII noble metal where at least 90% of the noble metal thereof is dispersed in the form of particles having a diameter less than 7 .ANG.. The catalysts may also be identified as type L zeolites loaded with at least one Group VIII noble metal which have a terminal cracking index (as a measure of production of pentanes versus butanes from hexane) of at least 1.5.

Bound zeolite catalyst and process for using said catalyst

Bound zeolite catalyst

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Mountainside, NJ, United States of America

Walter G Funk