FIELD: chemistry.
SUBSTANCE: anti-photobleaching additive is polyester-modified polysiloxane, methyl ether of polyethylene glycol, or polyoxyethylenesorbitan. The anti-photobleaching additive is selected to reduce photobleaching while maintaining the photocatalytic activity of the composition to at least 90%. In the photocatalytic composition, the said additive is present in a series of 1-35 vol.%. The photobleaching index (AL) of the said composition is less than 6. A photocatalytic coating, a building panel, and a method for applying a photocatalytic composition are also described.
EFFECT: obtaining a composition with reduced photobleaching and with the stored photocatalytic activity.
25 cl, 10 dwg, 3 tbl, 6 ex
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