Basf Aktiengesellschaft

Thomas Meyer

Gunnar Schornick

Matthias Kroner

Alfons Ludwig

Heinrich Hartmann

Volker Schwendemann

Thomas Subkowski

Heinz Hillen

Manfred Niessner

Martin Schmidt

Stefan Wickel

Harald Seulberger

Walter Schneider

Juergen Beck

Rainer Otter

Udo Metzmann

Elard Jacob

Hans-Jacob Feindt

Uwe Strotmann

Endothelin converting enzyme (ECE)

Preparation of salts of polyaspartic acid and their use in detergents

Preparation of polyaspartic acid

Finely divided, water-soluble polymers are prepared by polymerization of water-soluble, monoethylenically unsaturated monomers in not less than 20% strength by weight aqueous solution in the presence of a polymerization initiator in a kneader by a process in which from 0.1 to 10% by weight, based on the total monomers, of a surfactant are used in the polymerization, the polymerization initially being carried out to a conversion of the monomers of not less than 60% in the absence of the surfactant or in the presence of not more than 50% of the amount of surfactant, and the remaining amount of surfactant then being added to the reaction mixture and the polymerization completed. The addition of surfactant causes the polymer gel to disintegrate with formation of fine particles.

Preparation of finely divided, water-soluble polymers

Growing community of inventors

Romerberg, Germany

Thomas Meyer