The Dow Chemical Company

Junior J Lamson

Richard H Hall

Larry D Yats

Edward Stroiwas

Daniel H Haigh

.alpha.-Alkylbenzyl alcohol and substituted .alpha.-alkylbenzyl alcohols are converted in high yield and purity to styrene and substituted styrenes by contacting the alcohol in vapor phase with a high efficiency silica gel catalyst.

Dehydration of .alpha.-methylbenzyl alcohols to form monovinylidene

Ar-halo-ar(t-alkyl)styrenes, e.g., 2-chloro-4-(t-butyl)styrene, polymerize to form materials having unusually high temperature resistance. Additionally, compositions of such monomers, unsaturated polyesters and free-radical generating catalysts cure at lower temperatures and in less time than similar compositions containing conventional styrene monomers.

Ar-halo-ar(t-alkyl)styrenes and polymers thereof

.alpha.-Alkylbenzyl alcohol and substituted .alpha.-alkylbenzyl alcohols are converted in high yield and purity to styrene and substituted styrenes by contacting the alcohol in vapor phase with silica gel and steam.

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Bay City, MI, United States of America

Junior J Lamson