Ciba-geigy Corporation

Karl Urech

Roland Moser

Jurgen Habermeier

Multi-layer, heat-curable adhesive film having a tacky external curable layer A and a dry external curable layer B, containing various adducts which contain epoxide groups and are formed from an aromatic diglycidyl or polyglycidyl ether together with a carboxyl-terminated butadiene/acrylonitrile rubber and adducts of this type with a carboxyl-terminated polyester, and also aromatic diglycidyl or polyglycidyl ethers, varying amounts of fillers, dicyandiamide as a curing agent, a curing accelerator and, if appropriate, a carrier material between the layers A and B, is suitable for bonding various substrates and is preferably employed for bonding metal structural components without prior cleaning of these components.

Multi-layer, heat-curable adhesive film

Liquid polyglycidyl compounds, diethyltoluylenediamine, a curing accelerator and optionally further additives form a liquid matrix system with which fibres and fibre shapes are impregnated by known techniques, particularly by filament winding, pultrusion and injection processes. The components thus produced are for example tubes capable of withstanding pressure and torsional stress.

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Pratteln, Switzerland

Karl Urech