PROCESSO PARA PROTECCAO DE MATERIAIS DE CONSTRUCAO COM PERFLUOROPOLIETERES NA FORMA DE UMA MICROEMULSAO AQUOSA

摘要

There is described a process for protecting marble, stone, tiles, cement, and similar materials utilized in the building industry from the action of atmospheric agents and pollutants, which process comprises applying a perfluoropolyether having perfluoroalkyl end groups onto the surface of the article, said perfluoropolyether being in the form of an aqueous microemulsion.