Basf Aktiengesellschaft

Michael Kroner

Claudia Nilz

Jacques Dupuis

Manfred Winter

Heinrich Hartmann

Ekkehard Schwab

Wolfgang Trieselt

Friedrich Linhart

Knut Oppenlander

Andreas Stange

Rudolf Schuhmacher

Wolfgang Gunther

Michael Zirnstein

Fritz Brunnmueller

Klaus Pfitzner

Peter Trubenbach

Preparation of aqueous solutions of polymers containing vinylamine

In a process for the continuous distillation of thermolabile monomers under reduced pressure in the presence of formamide in a column,

Continuous distillation of thermolabile monomers

An SiO.sub.2 -free, .alpha.Al.sub.2 O.sub.3 -containing catalyst support in the form of a hollow body in which at least part of the outer walls of the hollow body is open can be used to produce a catalyst for dehydrocyanation reactions.

Catalyst supports and catalysts for dehydrocyanation reactions and

Dye transfer inhibitors for detergents

Linear, basic polymer powders which contain units of the formula ##STR1## and have a Fikentscher K value of from 10 to 200 are prepared by eliminating the formyl groups from N-vinylformamide polymer powders with a gaseous hydrogen halide in the presence of not more than 5% by weight, based on the polymer used, of water.

Preparation of linear, basic polymer powders

A new process for the manufacture of vinyl-lactonitrile by reacting methyl vinyl ketone with liquid hydrogen cyanide in the presence of basic compounds and of certain amounts of solvents. The products are starting materials for the manufacture of drugs, crop protection agents, dyes, plastics and synthetic resins.

Manufacture of vinyl-lactonitrile

Growing community of inventors

Mannheim, Germany

Michael Kroner