Henkel Kommanditgesellschaft Auf Aktien

Artiga Gonzalez

Christian Nitsch

Horst-Dieter Speckmann

Stefan Hammelstein

Andreas Lietzmann

The storage stability of bleach-activating acetonitrile derivatives in solid detergent compositions was to be improved. This was essentially achieved by the use of compounded compounds corresponding to formula R,R,R,N,CH,CN X,, in which R,, R,and R,independently of one another represent an alkyl, alkenyl or aryl group containing 1 to 18 carbon atoms, in addition to which the groups R,and R,may even be part of a heterocycle including the N atom and optionally other hetero atoms, and X is a charge-equalizing anion. &ldquo;Compounds&rdquo; of this type are produced by drying in vacuo, for which purpose a suspension of the acetonitrile derivative and a solid carrier material is introduced into a mixer and the resulting mixture is dried with superheated vapor. Dishwashing detergents, more particularly machine dishwashing detergents, contain about 1% by weight to 10% by weight of this bleach boosting compound.

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Duesseldorf, Germany

Artiga Gonzalez