Bayer Aktiengesellschaft

Norbert Bachem

Claus H Wulff

Udo Rudolph

Frieder Heydenreich

Jurgen Hinz

Lothar Klein

Hans-Jurgen Meissner

This invention relates to a catalyst modified with mercapto amines, its preparation and its use for the preparation of bisphenols.

Ion exchangers modified with mercapto amines

Ion exchange modified with mercapto amines

This invention relates to an ionic exchanger modified with thiazolines, to its preparation and to its use for the preparation of condensation products, particularly bisphenols.

Ionic exchangers modified with thiazolines

A catalyst for the preparation of bisphenols from phenols and compounds containing carbonyl groups consisting of a styrene/divinyl benzene copolymer into which are introduced sulphochloride groups which, in turn, have been partly reacted with mercaptoalkylamine and partly hydrolyzed to form sulphonic acid groups.

Catalyst for the preparation of bisphenols

Growing community of inventors

Krefeld, Germany

Norbert Bachem