Mixtures of high diversity, processes for their preparation and their use

The invention relates to a method for producing mixtures from a large number of components whereby the concentrations of the components used can be continuously modified across a predetermined ranges in a very easy manner. To this end, the mixtures are prepared in a continuous process in a mixer and are continuously brought into a form suitable for their further processing. The inventive method can for example be used to produce substance libraries for high throughput screening in the plastics industry, especially of mixtures of polymers with one another and of mixtures of polymers with other additives.