Mineral fibres capable of dissolving in a physiological medium

C - Chemistry – Metallurgy – 03 – C

Patent

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Details

C03C 13/06 (2006.01) C03C 3/097 (2006.01) C03C 13/00 (2006.01) G10K 11/16 (2006.01)

Patent

CA 2110998

La présente invention concerne des compositions de fibres minérales susceptibles de se dissoudre au contact d'un milieu physiologique. Les compositions de ces fibres comprennent les constituants suivants, selon les proportions pondérales définies ci-après: SiO2 48 à 67 %, Al2O3 0 à 8 %, Fe2O3 0 à 12 % (fer total exprimé sous cette forme), CaO 16 à 35 %, MgO 1 à 16 %, Na2O + K2O 0 à 6,5 %, P2O5 0 à 5 %, en considérant que ces compositions sont également définies par le fait que les teneurs de ces constituants respectent les relations suivantes: Na2O + P2O5 > 2 %, Fe2O3 + Al2O3 < 12 %, CaO + MgO + Fe2O3 > 23 %.

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