Basf Aktiengesellschaft

Hans Etling

Heinz Berbner

Hans D Zettler

Tilman Sirch

Erhard Guenther

Otto Wittmann

Wolfgang Eisele

Walter Pitteroff

Walter Pfalzgraf

The invention relates to a continuous process for preparing aminoplastics and/or phenolics, in which a precondensate solution is prepared in a first extruder ( ), the precondensate solution is continuously fed, with addition of additives, to a second extruder ( ) with partial filling in the feed section (E) and devolatilization section (G), devolatilized in the second extruder ( ) and then formed to give a molding composition or an end product. The process is particularly suitable for preparing melamine resins, in particular melamine-formaldehyde resins, as well as for preparing urea-formaldehyde resins.

Continuous method for producing amino- and/or phenoplasts

Heat-curable, aqueous synthetic resin mixtures for coating woodworking materials, based on etherified melamine/formaldehyde condensates and aqueous synthetic resin dispersions, a process for the preparation of these mixtures and their use for coating woodworking materials.

Heat-curable, aqueous synthetic resin mixtures for coating woodworking

Growing community of inventors

Dannstadt-Schauernheim, Germany

Hans Etling