Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Airbus Operations Gmbh

Christoph Uhlig

Monika Bauer

Karsten Hesse

J&ouml;rg Bauer

Dietmar Völkle

Wilfried Michaelis

Rajko Wurzel

Volker Müller

Jörg Bauer

A textile web material impregnated with a mixture that contains at least a prepolymer prepolymerized from a starting material of one or more bifunctional or polyfunctional organic cyanates and from a starting material of one or more bifunctional or polyfunctional aromatic alcohols, wherein the one or more bifunctional or polyfunctional organic cyanates and the one or more bifunctional or polyfunctional aromatic alcohols are present in weight ratios ensuring a molar ratio of the OCN groups to the OH groups between 95:5 and 70:30 prior to prepolymerization. The mixture further contains one or more fillers.

Flame-resistant, low-temperature curing cyanate-based prepreg resins for honeycomb sandwich components with excellent surfaces

The invention describes a fast curable system for the preparation of amine modified thermosettings containing triazine groups, the system comprising at least one polyfuctional organic monomeric or prepolymerized cyanate and at least one primary or secondary amine, wherein the amount of amine is selected such that the molar ratio of cyanate radicals to amine radicals is from 95:5 to 50:50, and optionally additional additives, characterized in that the amine is present in a form having a blocked or decreased reactivity which can be reactivated without reacting it with a chemical participant of reaction. Further, it is directed to amine modified thermosetting materials containing triazine groups as well as to a method for preparing same.

Quick-setting mixtures and kits with polyfunctional cyanates and amines, the thermosets produced therefrom and methods for the production thereof

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Berlin, Germany

Christoph Uhlig