FLAT EXTRUDATES HAVING SELF-CLEANING PROPERTIES, AND METHOD FOR PRODUCING EXTRUDATES OF THIS TYPE

摘要

The invention relates to flat extrudates (X) having surfaces that have self-cleaning properties, and to a simple method for producing self-cleaning surfaces of this type. The inventive method is very simple by virtue of the fact that it can involve the use of existing tools. Flat extrudates are generally flattened by using rollers. The inventive method uses these rollers by applying microparticles (P) thereto. As the extrudates are flattened, these microparticles are transferred to the extrudates while being pressed into the surface thereof. The inventive method makes it possible to obtain self-cleaning surfaces comprising particles with a fissured structure without having to apply an additional embossed layer or foreign material supporting layer to the shaped bodies. Inventive extrudates can be provided, for example, in the shape of films or panels.