High temperature glass fibers

Details High temperature glass fibers High temperature glass fibers

C - Chemistry, Metallurgy

03

C

C03C 13/00 (2006.01) C03B 37/01 (2006.01) F01N 1/24 (2006.01) G10K 11/162 (2006.01)

Patent

CA 2426637

High temperature glass fibers suitable for use as textile and reinforcements are specifically adapted to be used in high temperature applications such as sound absorbing material in engine exhaust mufflers. The glass fibers have compositions of up to 72 Mole % SiO2, 20 mole percent Al2O3, 22 mole percent alkaline earth oxides and may include small amounts of alkali oxides and ZrO2.

L'invention concerne des fibres de verre haute température pouvant être utilisées comme textile ou renforts, qui sont particulièrement adaptées dans des applications haute température, en tant que matériau d'isolation phonique pour silencieux d'échappement des moteurs. Les fibres de verre de l'invention présentent des compositions contenant jusqu'à 72 moles pour cent de SiO¿2?, 20 moles pour cent de Al¿2?O¿3?, 22 moles pour cent d'oxydes alcalino-terreux, et peuvent comprendre de faibles quantités d'oxydes alcalins et de ZrO¿2?.

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