Mineral-fiber compositions

Details Mineral-fiber compositions Mineral-fiber compositions

C - Chemistry, Metallurgy

03

C

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

Patent

CA 2168845

A biologically degradable mineral-fiber composition characterized by the following constituents in percent by weight: SiO2: 45 to 60, Al2O3: less than 2, CaO 7: to 18, MgO: 4 to 10, Na2O: 7 to 20, K2O: 0 to 4, B2O3: 1 to 12, P2O5: 0 to 4, diverse: 0 to 5, Na2O: + K2O: 7 to 24, CaO + MgO: more than 15.5 and up to 25, BaO: 0 to 5, TiO2: 0 to 4, Cr2O3: 0 to 1.5, Fe2O3: 0 to 3.

Composition de fibres minérales, biologiquement dégradable, caractérisée par la présence des constituants suivants en pourcentage pondéral: SiO¿2?: 45 à 60 %, Al¿2?O¿3?: moins de 2 %, CaO: 7 à 18 %, MgO: 4 à 10 %, Na¿2?O: 7 à 20 %, K¿2?O: 0 à 4 %, B¿2?O¿3?: 1 à 12 %, P¿2?O¿5?: 0 à 4 %, divers: 0 à 5 %, Na¿2?O + K¿2?O: 7 à 24 %, CaO + MgO: au minimum 15,5 % et au maximum 25 %, BaO: 0 à 5 %, TiO¿2?: 0 à 4 %, Cr¿2?O¿3?: 0 à 1,5 %, Fe¿2?O¿3?: 0 à 3 %.

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