A fibrous sound absorbing mass able to be biologically degraded

Details A fibrous sound absorbing mass able to be biologically degraded A fibrous sound absorbing mass able to be biologically degraded

C - Chemistry, Metallurgy

03

C

C03C 13/00 (2006.01) F01N 13/16 (2010.01) C03C 13/06 (2006.01) F01N 1/24 (2006.01) G10K 11/162 (2006.01)

Patent

CA 2350034

A fibrous sound absorbing mass mode of fibers having a biologically degradable composition, comprises components (I) in % by weight, wherein the sum of calcium oxide and magnesium oxide is in a range of 26.1 to 30.1 % by weight and the sum of sodium oxide and potassium oxide is in a range of 3.5 to 6.5 % by weight.

L'invention concerne une masse fibreuse insonorisante biodégradable faite de fibres à composition biodégradable, ladite masse étant constituée de composants (I), en pour-cent en poids, la somme de l'oxyde de calcium et de l'oxyde de magnésium étant comprise entre 26,1 et 30,1 en pour-cent en poids et la somme de l'oxyde de sodium et de l'oxyde de potassium étant comprise entre 3,5 et 6,5 en pour-cent en poids.

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