Wolff Walsrode Ag

Hans-Gunter Poersch-Panke

Klaus Szablikowski

Wolfgang Koch

Heinrich Alberts

Siegfried Korte

Branislav Bohmer

Werner Karstens

Branislav Boehmer

Heinrich Leffers

A method for the preparation of water-soluble, cationic amine polymers by the continuous or batch-wise reaction of a polymer having primary, secondary or tertiary amine functions in its side chain or primary chain as a starting material, wherein the reaction is carried out with an epoxide, a glycidyl ether or a mixture of different epoxides and glycidyl ethers in aqueous solution without additional solvent at a temperature of 30.degree. to 90.degree. C. and at a pH of 8 to 14 within 3 to 30 minutes, the epoxides or glycidyl ethers are added as one batch or in portions, and after adjusting the pH of the aqueous solution of the cationic polymer, which is &gt;13.5 after the reaction with epoxide or glycidyl ether, using a mineral or carboxylic acid, the product solution is obtained without additional work-up steps.

Method for the preparation of cationic, water-soluble polymers and their

The invention relates to a process for the continuous production of polyacrylonitrile hydrolyzates and to their use as dispersion and grinding aids for pigments and fillers, such as for example kaolin, CaCO.sub.3 or gypsum.

Process for the production of low molecular weight acrylonitrile

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Walsrode, Germany

Hans-Gunter Poersch-Panke