Patent ID: 8546457

Claim:
A process for production of an abrasive foam based on a melamine-formaldehyde condensate comprising inorganic nanoparticles, comprising the steps of: (1) preparing a solution or dispersion comprising a precondensate of the foam to be produced, and also comprising inorganic nanoparticles and comprising at least one physical blowing agent whose boiling point is from 0 to 80° C., and optionally further comprising added component (Z), (2) foaming of the precondensate via heating of the solution or dispersion from step (1) to a temperature of at least 60° C., in order to obtain a foam which comprises inorganic nanoparticles, and optionally, (3) heat-conditioning, at a temperature of from 120 to 300° C., of the foam obtained in step (2).