Polyurethane-based anhydrous sizing composition for glass...

Details Polyurethane-based anhydrous sizing composition for glass... Polyurethane-based anhydrous sizing composition for glass...

C - Chemistry, Metallurgy

03

C

C03C 25/32 (2006.01) C03C 25/24 (2006.01)

Patent

CA 2486479

The invention relates to a sizing composition consisting of a solution comprising less than 5 wt.- % solvent and a polymerisable base system, said system containing at least 50 wt.- % components of a mixture of: component(s) having at least one isocyanate-reactive function; component(s) having at least one hydroxy-reactive function; and, optionally, component(s) having at least one amine-reactive function. The invention also relates to glass fibres which are covered with the aforementioned sizing composition. The glass fibres thus obtained can be used to reinforce organic or inorganic materials.

L'invention se rapporte à une composition d'ensimage constituée d'une solution comprenant moins de 5 % en poids de solvant et comprenant un système de base polymérisable, ledit système comprenant au moins 5 % en poids de composants d'un mélange: de composant(s) présentant au moins une fonction réactive isocyanate, de composant(s) présentant au moins une fonction réactive hydroxy, et éventuellement de composant(s) présentant au moins une fonction réactive amine. L'invention concerne également pour objet les fils de verre revêtus de la composition d'ensimage précitée. Les fils de verre obtenus sont aptes à être utilisés renforcer des matières organiques ou inorganiques.

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