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

Airbus Operations Gmbh

Csir

Airbus (sas)

Wilfried Michaelis

Uwe Schneider

Monika Bauer

Berend Schoke

Christian Thomas

Ralph Sturm

Karsten Hesse

Stephan Hötzeldt

Dietmar Völkle

Florian Hesselbach

Christoph Uhlig

Stephen Anthony Chapple

Hans-Jürgen Schelling

Rajko Wurzel

Volker Müller

Rajesh Anandjiwala

Maya Jacob John

Michael Döcker

Arno Berger

A method of fabricating an artifact () includes treating natural fibers () with a non-halogenated flame retardant agent (), the fibers () also being treated with a smoke suppressant (). At least one pre-preg is formed () from the treated natural fibers and from a resin composition () including a smoke suppressant () admixed therein (). An uncured artifact is formed from a core or substrate () and the pre-preg, which provides a skin, and is cured (). A non-fibrous silicate fire resistant material () is introduced by: (i) admixing the fire resistant material with the resin composition, and/or (ii) applying the fire resistant material to an outer surface of the pre-preg or an outer surface of the skin of the uncured artifact, and/or (iii) applying the fire resistant material to an outer surface of the skin of the cured artifact. The invention extends to a flame-proofed artifact ().

Flame-proofed artefact and a method of manufacture thereof

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

Growing community of inventors

Ritterhude, Germany

Wilfried Michaelis