C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 13/00 (2006.01) C03C 25/14 (2006.01) C03C 25/26 (2006.01) C03C 25/34 (2006.01) C03C 25/42 (2006.01)
Patent
CA 2603412
The invention relates to a mineral wool which can dissolve in a physiological medium, comprising fibres having a chemical composition that contains the following constituents in the limits defined hereafter and expressed in percentage by weight, namely: 35 to 75 SiO2; 0 to 12 Al2O3; 0 to 30 CaO; 0 to 20 MgO; 0 to 20 Na2O; 0 to 10 K2O; 0 to 10 B2O3; 0 to 5 Fe2O3;and 0 to 3 P2O5, said mineral wool also comprising at least one phosphorus compound. The invention is characterised in that a phosphorus compound is a molecule in which the phosphorus atom(s) are bound to at least one carbon atom either directly or by means of an oxygen atom.
Laine minérale susceptible de se dissoudre en milieu physiologique comprenant des fibres dont la composition chimique comprend les constituants suivants dans les limites définies ci-après exprimées en pourcentages pondéraux : SiO2 35 à 75 AI2O3 O à 12 CaO 0 à 30 MgO 0 à 20 Na2O 0 à 20 K2O 0 à 10 B2O3 0 à 10 Fe2O3 0 à 5 P2O5 O à 3, ladite laine minérale comprenant en outre au moins un composé du phosphore, caractérisée en ce qu'un composé du phosphore est une molécule dans laquelle le ou les atome(s) de phosphore est (sont) lié(s) à au moins un atome de carbone, directement ou par le biais d'un atome d'oxygène.
Douce Jerome
Dupouy Valerie
Espiard Philippe
Goudreau Gage Dubuc
Saint-Gobain Isover
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