Basf Aktiengesellschaft

Basf Se Corporation

Anton Negele

Norbert Mahr

Hubert Meixner

J&uuml;rgen Decker

Dieter Zeller

Werner Gauweiler

J&uuml;rgen Tropsch

Axel Sanner

Wolfgang Siegel

Hermann Luyken

Andreas Deckers

Peter Bassler

Peter Zehner

Son Nguyen Kim

Wilhelm Ruppel

Stefan Frenzel

Axel Kistenmacher

Claudia Wood

Gerhard Wolf

Helmut Meffert

Stephan Kothrade

Martin Ruebenacker

Martin R&uuml;benacker

Michael Gotsche

Arnulf Lauterbach

Thomas Schneider

Helmuth Menig

Volker Vogt

Jens Utecht

Tanja Schneider

Guenther Achhammer

Günther Achhammer

Georg Igl

Martin Rübenacker

Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, in which a formamide-containing recycle stream is obtained from the product mixture after the dehydration and is recirculated to the dehydration, wherein the formamide-containing recycle stream contains from 5 to 50% by weight of water.

Method for the production of hydrocyanic acid

Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water,

Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides, their preparation and their use

The present invention relates to a process for preparing hydrocyanic acid (HCN) by catalytic dehydration of gaseous formamide in a reactor which has an internal reactor surface made of a steel comprising iron and chromium and nickel, and also to a reactor for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, which reactor has an internal reactor surface made of a steel comprising iron and chromium and nickel, and also to the use of the reactor of the present invention in a process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide.

Hydrocyanic acid consisting of formamide

Aqueous dispersions of water-soluble polymers of N-vinyl carboxylic acid amides, method for the production and use thereof

Compositions comprising at least one water-insoluble ingredient and at least one copolymer of

Compositions comprising copolymers of N-vinylcarboxamides and monomers with a hydrophobic radical, and use of these copolymers

The invention relates to the use of graft copolymers obtained by radical graft copolymerisation of a) at least one open-chained N-vinylamide compound of general formula (I) wherein R, R, Rrepresents H or C-C-alkyl and b) optionally, one or several other copolymerizeable monomers on a polymer graft base c) for cosmetic applications, with the proviso that if the polymer graft base is a compound containing polyether, the copolymerizeable polymer b) does not represent vinylester

Use of hydrophilic graft copolymers containing N-vinylamine and/or open-chain N-vinylamide units in cosmetic formulations

N-vinyl-containing polymeric tanning materials

Use of water-soluble polymers as biocides

Amphiphilic graft copolymers are prepared by grafting a pre-formed graft base polymer comprising at least 5% by weight of units of formula (I)

Amphiphilic graft polymers based on graft bases containing n&mdash;vinylcarboxylic acid units, process for their preparation and their use

The use of polymers containing &bgr;-hydroxyalkylvinylamine units, as obtainable by reacting polymers containing vinylamine units with epoxides of the formula

Use of polymers containing &bgr;-hydroxyalkylvinylamine units as biocides

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Deidesheim, Germany

Anton Negele