Glass fibres for reinforcing organic and/or inorganic...

Details Glass fibres for reinforcing organic and/or inorganic... Glass fibres for reinforcing organic and/or inorganic...

C - Chemistry, Metallurgy

03

C

C03C 13/00 (2006.01) C03C 3/087 (2006.01)

Patent

CA 2528923

The invention relates to reinforcing glass fibres whose composition comprises the following components expressed in percentage by weight within the following limits: 50-65 % SiO¿2?, 12-20 % AI¿2?O¿3, ?13-16 % CaO, 6-12 % MgO, 0-3 % B¿2?O¿3,? 0-3 % TiO¿2, ?< 2 % Na¿2?O + K¿2?O, 0-1 % F¿2,? < 1 %Fe¿2?O¿3?. The inventive fibres consist of glass exhibiting an excellent compromise between the mechanical properties thereof in terms of a specific Young modulus and the fusion and fibre properties.

L'invention se rapporte à des fils de verre de renforcement dont la composition comprend les constituants suivants dans les limites définies ci- après exprimées en pourcentages pondéraux : SiO2 50-65%, AI2O3 12-20%, CaO 13- 16%, MgO 6-12%, B2O3 0-3%, TiO2 0-3%, Na2O + K2O < 2%, F2 0-1%, Fe2O3 < 1%. Ces fils sont constitués d'un verre offrant un excellent compromis entre ses propriétés mécaniques représentées par le module d'Young spécifique et ses conditions de fusion et de fibrage.

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