Self-adhesive prepreg, process for producing same, and use thereof
AssigneeIsola AS
InventorsHans-Joachim Gabrisch, Marteen De Zwart, Markus Rudin
Life of this patent
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Abstract
There are described a self-adhesive prepreg on the basis of a resin-impregnated fibrous supporting material carrying on at least one surface a layer with an increased ratio of resin to supporting material, and the use thereof for the production of sandwich structures.
Claims22
A sandwich structure comprising a honeycomb and/or foam core material and face layers, wherein the core material is bonded to the face layers by means of a self-adhesive prepreg of resin-impregnated fibrous supporting material, characterized in that the prepreg comprises a core layer of a fibrous supporting material and at least one surface layer of a lightweight auxiliary fibrous material, wherein the fibrous supporting material has a higher weight per unit area than the auxiliary fibrous material, wherein the weight ratio of resin to supporting material in the surface layer is higher than in the core layer, and wherein the fibrous supporting material and auxiliary fibrous material are impregnated with a thermosetting resin converted to the B-stage.
Dependencies are inferred from the claim text.