Bayer Aktiengesellschaft

Lothar Klein

Claus H Wulff

Klaus Walz

Frieder Heydenreich

Karl-Rudolf Gassen

Hans Schulze

Karlheinrich Meisel

Gerd-Friedrich Renner

Norbert Bachem

Reiner Ditzer

Carsten Gerdes

Hans-Jurgen Meissner

.beta.-Hydroxyalkylpicolinium salts of the formula (I) ##STR1## wherein A, R.sup.1 to R.sup.3 and X have the meanings given in the description, which are obtained by reaction of picolines of the formula (II) ##STR2## with alkylene oxides of the formula (III) in the presence of a 1- to 3-basic acid and in water or an organic solvent as the reaction medium and are used as intermediate products for the preparation of cationic dyestuffs, and dyestuff preparations comprising such cationic dyestuffs.

Process for the preparation of beta-hydroxyalkypicolinium salts

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

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Leverkusen, Germany

Lothar Klein