Man-made vitreous fibres

C - Chemistry – Metallurgy – 03 – C

Patent

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C03C 13/00 (2006.01) C03C 3/091 (2006.01) C03C 13/06 (2006.01)

Patent

CA 2159214

Products comprising man-made vitreous fibres are formed of a composition which contains, by weight of oxides, 0.5-4 % Al2O3, 2-10 % P2O5, 0.1-4 % TiO2 together with SiO2, FeO, CaO and MgO and optionally other elements. The products can have good dissolution rate at pH 7.5 and good mechanical properties even after exposure to humidity.

L'invention porte sur des produits comprenant des fibres vitreuses, chimiques, qui comprennent une composition contenant, en poids d'oxydes, 0,5 à 4 % d'Al¿2?O¿3?, 2 à 10 % de P¿2?O¿5?, 0,1 à 4 % de TiO¿2? ainsi que SiO¿2?, FeO, CaO et MgO, et éventuellement d'autres éléments. Ces produits peuvent avoir une bonne vitesse de dissolution à un pH de 7,5 et de bonnes propriétés mécaniques, même après avoir été exposés à l'humidité.

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