A two-component adhesive/sealant with high early strength

C - Chemistry – Metallurgy – 09 – J

Patent

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Details

C09J 201/10 (2006.01) C09J 11/08 (2006.01) C09J 171/00 (2006.01) C09K 3/10 (2006.01)

Patent

CA 2220933

Two-component adhesive/sealing masses based on silane-terminated prepolymers contain a component A which is a one-component, humidity-hardening adhesive/sealing mass with high initial adhesiveness, and a component B which is a cross-linking agent and/or accelerator for component A. These adhesive/sealing masses are suitable for gluing without primer parts made of metals or other materials such as aluminium, steel, glass, wood or plastics. The thus obtained assembly may be further processed and/or transported without being fixed by other mechanical means. In a particularly preferred embodiment, component B consists of a viscous, stable mixture of plasticisers, water, thickeners and other optional auxiliary substances.

Ces adhésifs/masses d'étanchéité à deux composants à base de prépolymères terminés par des groupes silane contiennent un composant A qui est un adhésif/masse d'étanchéité à un seul composant durcissable à l'humidité et ayant une adhérence initiale élevée, et un composant B qui est un agent réticulant et/ou accélérateur de la prise du composant A. Ces adhésifs/masses d'étanchéité servent à coller des pièces métalliques ou autres sans application préalable d'un primaire, par exemple des pièces en aluminium, en acier, en verre, en bois ou en matières plastiques. L'ensemble ainsi collé peut être ultérieurement traité et/ou transporté sans qu'il soit nécessaire de l'assujettir par d'autres moyens mécaniques. Dans un mode particulièrement préféré de réalisation, le composant B est un mélange pâteux stable de plastifiants, d'eau, d'épaississants et le cas échéant d'autres additifs.

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