STRUCTURED SURFACES HAVING HYDROPHOBIC PROPERTIES

摘要

Disclosed is an article having a structured surface, wherein the structured surface has protuberances having an average height of 50 nm to 10 ~m and an average spacing of 50 nm to 10 ~m and the structured surface is made of a material which is hydrophobic to such an extent that the material has, when unstructured, a surface energy of 10 to 20 mN/m. The surface has a large contact angle with water, is hardly wetted by water and therefore has a self-cleaning effect. Also disclosed are processes for the production of the article.