MOLDED CERAMIC ARTICLE WITH PHOTOCATALYTIC COAT AND METHOD OF MANUFACTURE OF SUCH ARTICLE Russian patent published in 2008 - IPC C04B41/87 B01J35/10 

FIELD: molding of ceramic articles, such as roofing tiles, brick, clinker brick or ceramics for front walls from oxidoceramic material of base with surfaces which are self-cleaning when sprinkled with rain or wetted.

SUBSTANCE: molded article has porous photocatalytic active coat which contains TiO₂ or Al₂O₃ (aluminum oxide C) in combination with other oxides of metals, for example SiO₂; its specific surface ranges from about 25 m²/g to about 200 m²/g. Average diameter of pores or capillaries of articles ranges from 0.1 to 5 mcm. At least one bossy layer may be placed in between oxidoceramic material of base and photocatalytic active coat. Surface of article may be waterproofed. Method of manufacture of article includes preparation of suspension of photocatalytically active material, application of this suspension on article for forming the required layer and hardening of this layer.

EFFECT: improved self-cleaning ability and wear resistance of articles.

44 cl, 3 tbl