Self-cleaning plastics article and process for its production

Details Self-cleaning plastics article and process for its production Self-cleaning plastics article and process for its production

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2481802

The invention relates to self-cleaning synthetic bodies, obtained as follows: a) a siloxane coating (a) is applied to a synthetic substrate and cured, b) the polar fraction of the surface energy of the cured siloxane coating on the substrate is increased to a value of at least 10 mN/m and c) a coating (b) containing photocatalytically active TiO2 particles is applied to the synthetic substrate and cured.

L'invention concerne des corps plastiques autonettoyants productibles au moyen d'un procédé consistant à : a) appliquer un revêtement en siloxane (a) sur un substrat plastique puis à durcir ce revêtement; b) augmenter la fraction polaire de l'énergie superficielle de ce revêtement en siloxane durci pour qu'elle atteigne une valeur au moins égale à 10 mN/m et à ; c) appliquer un revêtement photocatalytiquement actif contenant des particules TiO2 (b), puis à durcir ce revêtement.

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