Glass yarn sizing composition, method using same, and...

C - Chemistry – Metallurgy – 09 – D

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C09D 5/32 (2006.01) C03C 25/28 (2006.01) C03C 25/36 (2006.01)

Patent

CA 2182806

A glass yarn sizing composition consisting of a solution having a viscosity of at most 400 cP and including less than 5 wt % of a solvent and at least one ultraviolet radiation- or electron beam-polymerisable base system that includes at least one component with a molecular weight of less than 750 including at least one epoxy reactive function and at least 60 wt % of one or more components with a molecular weight of less than 750 including at least one reactive function selected from epoxy, hydroxy, vinylether, acrylic and methacrylic. A method using said composition and yarns coated therewith are also disclosed.

La présente invention concerne une composition d'ensimage pour fils de verre constituée d'une solution de viscosité inférieure ou égale à 400 cP comprenant moins de 5 % en poids de solvant et comprenant au moins un système de base polymérisable sous l'action d'un rayonnement ultraviolet ou d'un faisceau d'électrons, ledit système de base comprenant au moins un composant de masse moléculaire inférieure à 750 présentant au moins une fonction réactive époxy et comprenant au moins 60 % en poids d'un ou plusieurs composants de masse moléculaire inférieure à 750 présentant au moins une fonction réactive choisie parmi les fonctions suivantes: époxy, hydroxy, vinyléther, acrylique et méthacrylique. L'invention concerne également un procédé utilisant cette composition et les fils revêtus de ladite composition.

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