Basf Aktiengesellschaft

Rolf Lebkucher

Rainer Becker

Andreas Henne

Peter Horn

Horst Neuhauser

Joachim Simon

Harald Larbig

Ludwig Jung

Gerhard Lehr

Jochem Henkelmann

Michael Hesse

Boris Breitscheidel

Klemens Flick

Thomas Ruhl

Heinz-Josef Kneuper

Detlef Kratz

Roman Dostalek

Cristina Freire Erdbrugger

Heinz Lingk

The invention relates to a process for the production of polyurethane foams by reacting

Production of low-fogging polyurethane foams, and specific

In a process for the N-alkylation of amines in which alcohols are reacted with alkylamines or dialkylamines in the presence of hydrogen, the reaction takes place on a catalyst based on copper and magnesium silicate and containing, in each case independently, 0 to 2% by weight of BaO, Cr.sub.2 O.sub.3 and/or ZnO. The amines employed are mono- or dimethylamine or mono- or diethylamine, the alcohols employed are .alpha.,.omega.-diols, in particular diethylene glycol or pentanediol. In particular there is reaction of diethylene glycol with monomethylamine and/or monoethylamine to give N-methylmorpholine and/or N-ethylmorpholine.

N-alkylation of amines

In a process for preparing alkylamines by reacting amines and aliphatic aldehydes in the presence of free hydrogen on a fixed bed catalyst in a reactor in which amines and aldehydes are mixed in the catalyst bed after being fed in in separate streams, only the aldehyde stream or only the amine stream is preheated during the feeding in.

Preparation of alkylamines

In a process for hydrogenating an aromatic compound in which at least one hydroxyl group is bonded to an aromatic ring or an aromatic compound in which at least one amino group is bonded to an aromatic ring, in the presence of a catalyst comprising as catalytically active component at least one metal of transition group I, VII or VIII of the Periodic Table applied to a support, the catalyst is obtainable by

Hydrogenation of an aromatic compound in the presence of a supported

N-Substituted cyclic amines are prepared by reacting diols with primary amines over a copper-containing catalyst which is obtainable by impregnation of an inert support with an aqueous solution of an ammine complex of a readily thermally decomposable copper compound and subsequent drying and calcination and contains from 5 to 50% by weight of copper, calculated as CuO.

Preparation of N-substituted cyclic amines

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Mannheim, Germany

Rolf Lebkucher