Hoechst Aktiengesellschaft

Albert Jung

Johannes Reese

Kurt Hultzsch

Wolfgang Hesse

Rolf Zimmermann

A reaction product of a diolefine polymer with a phenol and an olefinically unsaturated carboxylic acid or its anhydride wherein the diolefine polymer is

Reaction products of polydiolefins, phenols and unsaturated carboxylic

Sulfuric acid compounds are removed from reaction mixtures by a reaction with polybutadiene alone or combined with unsaturated terpene compounds at elevated temperatures whereby products of reduction are formed which are volatilizable at the temperature of reaction and by expelling said products of reduction from the reaction mixture. Thus a product being substantially free from a sulfur content is obtained.

Removal of sulfuric acid compounds

Sulfuric acid compounds are removed from reaction mixtures by a reaction with unsaturated terpene compounds or with polybutadiene at elevated temperatures whereby products of reduction are formed which are volatilizable at the temperature of reaction and by expelling said products of reduction from the reaction mixture. Thus a product being substantially free from a sulfur content is obtained.

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Mainz, Germany

Albert Jung